[RE-wrenches] Lithium age question
Hi all, As a lithium battery ages, does the voltage keep it’s flat line steep curve but just start it’s drop at a higher voltage or does it have more of a gradual voltage drop? Thx Jay Peltz power. ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
[RE-wrenches] wattsun linear actuator
HI All I”m trying to locate another ( or Similar) VonWeise V76-5 actuator for an older wattsun smaller tracker. I’ve only found 1 used one on Ebay. Any ideas? thx jay peltz power ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
[RE-wrenches] MPPSolar equipment
HI All, Has anyone used or know anything about MPPsolar equipment. Inverters, CC etc. It would be for international work. thx jay peltz power ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] Mate 3 shutdown
Hi Dana, If you look at the graphs, are they smooth or really kind of unclear ? How often do you clear the internal data? The mate 3 has a fatal flaw. Th internal data will over write code once memory is full. One indicator is locking up, another is the graphs looking unclear. It’s recommended to clear it at least every 6 months. And even with current firmware and clearing memory, I still see it happen. Jay > On Oct 10, 2018, at 4:51 PM, Dana wrote: > > My learned fellow Sparkies, > > I have at home off-grid Radian with Mate 3 monitor. Periodically & randomly > my Mate 3 blanks out and requires a reboot (un-plug / re-plug). While this is > not such a big deal to address, the total loss of ALL the performance & usage > data is really concerning in the event that I need the data for a T/S. > > I have not called OB as there is no cell service at or near the system and to > do so is a huge time killer back & forth & waiting to check again. I am > convinced the brain trust here is the answer. > > Has anyone else experienced this? > Any remedial action to correct this issue? > > Let me know & thanks. > > > Dana Orzel NABCEP # 051112-136 > Cell - 208.721.7003 Email - d...@solarwork.com > Great Solar Works, Idaho Incwww.solarwork.biz > ID PV Contractor - # 028765 - ID PV Electrician # 028374 > "Responsible Technologies for Responsible People since 1988" > Please consider the environment before printing this email. > > > ___ > List sponsored by Redwood Alliance > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org > ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
[RE-wrenches] deka ultra battery
HI All, Has anyone installed, seen, used or priced the Deka Ultrabattery for stationary applications? ( solar) Thanks jay peltz power ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] Low voltage DC v. higher voltage DC
Hi all What is the news on the skybox? Last I checked it was still MIA Jay > On Sep 25, 2018, at 9:13 AM, Jeff Clearwater > wrote: > > Hi Dave and All. > > Reasons for HV batteries off grid? > > 1) Smaller cable size (I just did an 18 Kw off grid with 4 SIs and the cable > costs alone were in the order of $400) and increased flexibility locating > batteries and inverter. 10 AWG plug and play. > > 2) Higher efficiencies. Easy integration on the DC bus. > > 3) Integration with GTBB battery tech and systems. Why have two standards and > two sets of equipment? The line between Off Grid and GTBB will blur as more > GT customers want more storage and more Off-grid customers want the option of > grid hookup at some point. For developing countries as off grid micro grids > grow they can merge. > > 4). Integration with Electric Vehicles as storage for either GTBB or > Off-Grid - can integrate on the DC bus seamlessly. > > These are the reasons that seem obvious to me. I’d be surprised if the > manufacturers are not thinking this way. Though you may be right as I was > surprised that Outback went 48V with the Skybox. And it’s been a hard sell to > get SMA to support US off-grid. If the equipment could do both seamlessly > they would have more market. > > And High Voltage safety is not really an issue with proper (standard > electrician) training and as the only electrician or customer interface is a > plug or set of small non-energized terminals. Having high voltage DC in you > car is more dangerous. House fires are caused by amperage leaks (much higher > in Low V) (and shorted PB-acid) way more than voltage leaks. > > I’m off to SPI. I’ll ask them . . From what I understand Pika is heading that > direction. I imagine Powerwall too if they ever decide to support off-grid. > > Best > > Jeff > > > > > > > > > > > > > ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] Neutral sizing
HI Drake and all, Thanks for this. As I understand this better now, maybe. Neutral sizing changes between supply side and load side of main service panel. Others have chimed in with an argument that can be made that if the neutral wire is sized for a 200 amp service then it should be OK even if the ungrounded wires are larger. Yes there would be higher VD than with the 500mcm but this would only be at fully 1 phase loaded which is highly unlikely. However the wire ampacity wouldn’t be in question even in a 100% 1 phase load. This project the owner decided that rather than fight the county, he had the money to install the 500mcm as a neutral. I have been just trying to educate myself for future projects and as often is the case with me and the NEC, its more complicated that I thought. jay peltz power > On Sep 23, 2018, at 10:26 AM, Drake > wrote: > > <38555f75.jpg> > > > At 09:47 PM 9/21/2018, you wrote: >> Hi all, Iâm wondering if there is code reference to size of neutral vs >> power conductors. County is requiring neutral same size as mains 240vac. As >> itâs 500 mcm due to VD (200 amp service) itâs a non trivial expense. I >> know that where I live, the utility brings in a smaller neutral than L1/L2 >> Thanks in advance Jay ___ List >> sponsored by Redwood Alliance List Address: >> RE-wrenches@lists.re-wrenches.org Change listserver email address & >> settings: >> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >> <http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org> >> List-Archive: >> http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html >> <http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html> >> List rules & etiquette: www.re-wrenches.org/etiquette.htm >> <http://www.re-wrenches.org/etiquette.htm> Check out or update participant >> bios:www.members.re-wrenches.org >> <http://www.members.re-wrenches.org/>___ > List sponsored by Redwood Alliance > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org > ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
[RE-wrenches] Neutral sizing
Hi all, I’m wondering if there is code reference to size of neutral vs power conductors. County is requiring neutral same size as mains 240vac. As it’s 500 mcm due to VD (200 amp service) it’s a non trivial expense. I know that where I live, the utility brings in a smaller neutral than L1/L2 Thanks in advance Jay ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] Raised up ground mounts
Iron ridge has a 3” option > On Sep 20, 2018, at 2:15 PM, Jason Szumlanski > wrote: > > > I wish! 180mph, Exposure Category D - about as bad as it gets in the US. I > don't think pole mount will work around here. We need a really beefy > structure. It's probably going to have to be custom... and expensive... > > >> On Thu, Sep 20, 2018 at 11:10 AM Lorenzo Ortiz wrote: >> We've used DPW also with good results. We design for 110 mph winds out here >> and, depending on how high you go, can require some pretty beefy SCH80 >> 8"-10"D pipe. >> MT Solar might be something to look at too. They make multi-pole mounts for >> larger arrays but can get a little pricey. >> >> Good luck! >> >> >>> On Thu, Sep 20, 2018 at 4:55 AM, Jason Szumlanski >>> wrote: >>> Any suggestions for ground mount racks where panels need to have the >>> leading edge 6-8 feet above grade (due to flood level requirement)? Also, >>> high wind area... 100kw system rating. Tilt can be as low as 5-10%. We're >>> getting into carport territory here, but I'm trying to keep the cost >>> reasonable since it won't have a dual function like a carport or shade >>> structure. >>> >>> Jason Szumlanski >>> Florida Solar Design Group >>> >>> ___ >>> List sponsored by Redwood Alliance >>> >>> List Address: RE-wrenches@lists.re-wrenches.org >>> >>> Change listserver email address & settings: >>> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >>> >>> List-Archive: >>> http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html >>> >>> List rules & etiquette: >>> www.re-wrenches.org/etiquette.htm >>> >>> Check out or update participant bios: >>> www.members.re-wrenches.org >>> >>> >> >> >> >> -- >> Loren Ortiz Commercial PV Designer >> >> lo...@cal-solar.com (530) 274-3671 >> >> >> >> >> Showroom located at: 149 E Main St. Grass Valley, CA 95945 >> ___ >> List sponsored by Redwood Alliance >> >> List Address: RE-wrenches@lists.re-wrenches.org >> >> Change listserver email address & settings: >> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >> >> List-Archive: >> http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html >> >> List rules & etiquette: >> www.re-wrenches.org/etiquette.htm >> >> Check out or update participant bios: >> www.members.re-wrenches.org >> > ___ > List sponsored by Redwood Alliance > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org > ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] High Volume Solar Pumping
Mac Look at the grundfos RSI It’ll go up to 37kw for standard 3 phase pumps. At 37kw it’s 480 3 phase output and 1000vdc input if I remember correctly Jay > On Sep 20, 2018, at 10:04 AM, Mac Lewis wrote: > > Hello Wrenches, > > This is a larger volume pumping application than I have designed before so > I'm trying to head in the right direction. > > We need ~ 144,000 gallons per day > Head is ~70' > > We'd like to do this via a surface pump(s) if possible. > > Do you know any equipment that may be able to do this volume per day? > > Thanks in advance > > -- > > > > Mac Lewis > > "Yo solo sé que no sé nada." -Sócrates > > ___ > List sponsored by Redwood Alliance > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org > ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] Step-up/Step-down Transformer question
Thx Brian. I guess I was thinking that 50kw + was probably A darn big house and probably be outbuildings that the inverters would be installed on. Yea bringing 1000vdc to a house is a bit much but then we said that with 600v too. Jay Peltz power > On Sep 18, 2018, at 6:34 PM, Brian Mehalic wrote: > > Currently up in the air as to whether 2020 will allow that on 1- and 2- > family houses. If so then yes...currently don’t know of any. > > Brian > >> On Sep 18, 2018, at 2:45 PM, Jay wrote: >> >> Does anyone make a 1000vdc single phase inverter? >> Would reduce wire costs dramatically >> >> Jay >> Peltz power. >> >>> On Sep 18, 2018, at 11:36 AM, Lorenzo Ortiz wrote: >>> >>> Thanks for all the input guys. After looking at the 3 phase with >>> transformer options with some transformer manufacturers, that has been >>> pretty much ruled out due to complexity/cost. >>> With single phase step-up and step-down transformers, even at 600VAC, it >>> still requires some monster wire. >>> The best solution seems to be placing the inverters next to the POI and >>> just running long strings from the array back to the inverters and >>> accepting up to 4%-5% voltage drop. And that's with #8 instead of the usual >>> #10 AND accounting for worst-case production. >>> >>> Man, sometimes this solar stuff is just crazy... >>> >>>> On Tue, Sep 18, 2018 at 10:15 AM, Blake Gleason >>>> wrote: >>>> Good advice already on this thread. A couple of points to consider: >>>> >>>> 1. Re: step-up/step-down option (probably what I'd do): definitely pay >>>> attention to transformer spec to minimize both magnetization and operating >>>> losses. Newer DOE 2016-compliant transformers are MUCH better than >>>> before, and that's just the minimum standard. If you really want to >>>> minimize magnetization losses, you can always design a relay/timer to >>>> disconnect the transformers at night (from the interconnection side), >>>> although I've found that this setup is either very expensive or too >>>> unreliable (nuisance tripping upon re-connect, timer gets "off" cycle >>>> somehow, etc). >>>> >>>> 2. I think someone mentioned a 480V single-phase inverter. I'm not aware >>>> of a high-quality product meeting that description. Is there one? All of >>>> the "480V" single-phase inverters I'm aware of are 277V (line to neutral), >>>> which is hardly worth the transformer effort (versus 240V). >>>> >>>> 3. Definitely use aluminum wire for the long run. If wire size is still >>>> too large, even with step up/down tranformers, consider allowing slightly >>>> increased voltage drop at full power (say, 5%), and, depending on typical >>>> grid voltage at the site, change taps on one of the transformers to err on >>>> the low side (from inverters' point-of-view), to keep the inverters from >>>> tripping at upper voltage limit at full power (max voltage drop/rise). >>>> >>>> >>>> Blake >>>> >>>>> On Tue, Sep 18, 2018 at 9:57 AM, Jerry Shafer >>>>> wrote: >>>>> Lorenzo >>>>> You might want to look at relocating the inverter(s) closer to the meter >>>>> instead of the array, one reason is even if there is some line loss at >>>>> full power its less as the voltage goes up and the inverter does not see >>>>> the line resistance that can cause high voltage issues at the inverter. >>>>> Some engineers use more side of peak performance than full power, this >>>>> keeps wite size down and does not effect output >>>>> Jerry >>>>> >>>>> On Sep 17, 2018 9:42 AM, "Lorenzo Ortiz" wrote: >>>>> Wrenches, >>>>> >>>>> We have a PV array situated about 900' from the POI (240V 1PH). We >>>>> initially spec'd (5) 11.4kW inverters and the combined output would be >>>>> 238A. The wire size required for this current over that distance is cost >>>>> prohibitive. >>>>> >>>>> A solution was to use a single 50kW 3 phase inverter at the array and >>>>> then convert it to 240V... somehow? Is anyone familiar with how to go >>>>> about doing this? My thought was to have a step down transformer at the >>>>&
Re: [RE-wrenches] Step-up/Step-down Transformer question
Does anyone make a 1000vdc single phase inverter? Would reduce wire costs dramatically Jay Peltz power. > On Sep 18, 2018, at 11:36 AM, Lorenzo Ortiz wrote: > > Thanks for all the input guys. After looking at the 3 phase with transformer > options with some transformer manufacturers, that has been pretty much ruled > out due to complexity/cost. > With single phase step-up and step-down transformers, even at 600VAC, it > still requires some monster wire. > The best solution seems to be placing the inverters next to the POI and just > running long strings from the array back to the inverters and accepting up to > 4%-5% voltage drop. And that's with #8 instead of the usual #10 AND > accounting for worst-case production. > > Man, sometimes this solar stuff is just crazy... > >> On Tue, Sep 18, 2018 at 10:15 AM, Blake Gleason >> wrote: >> Good advice already on this thread. A couple of points to consider: >> >> 1. Re: step-up/step-down option (probably what I'd do): definitely pay >> attention to transformer spec to minimize both magnetization and operating >> losses. Newer DOE 2016-compliant transformers are MUCH better than before, >> and that's just the minimum standard. If you really want to minimize >> magnetization losses, you can always design a relay/timer to disconnect the >> transformers at night (from the interconnection side), although I've found >> that this setup is either very expensive or too unreliable (nuisance >> tripping upon re-connect, timer gets "off" cycle somehow, etc). >> >> 2. I think someone mentioned a 480V single-phase inverter. I'm not aware of >> a high-quality product meeting that description. Is there one? All of the >> "480V" single-phase inverters I'm aware of are 277V (line to neutral), which >> is hardly worth the transformer effort (versus 240V). >> >> 3. Definitely use aluminum wire for the long run. If wire size is still too >> large, even with step up/down tranformers, consider allowing slightly >> increased voltage drop at full power (say, 5%), and, depending on typical >> grid voltage at the site, change taps on one of the transformers to err on >> the low side (from inverters' point-of-view), to keep the inverters from >> tripping at upper voltage limit at full power (max voltage drop/rise). >> >> >> Blake >> >>> On Tue, Sep 18, 2018 at 9:57 AM, Jerry Shafer >>> wrote: >>> Lorenzo >>> You might want to look at relocating the inverter(s) closer to the meter >>> instead of the array, one reason is even if there is some line loss at full >>> power its less as the voltage goes up and the inverter does not see the >>> line resistance that can cause high voltage issues at the inverter. Some >>> engineers use more side of peak performance than full power, this keeps >>> wite size down and does not effect output >>> Jerry >>> >>> On Sep 17, 2018 9:42 AM, "Lorenzo Ortiz" wrote: >>> Wrenches, >>> >>> We have a PV array situated about 900' from the POI (240V 1PH). We >>> initially spec'd (5) 11.4kW inverters and the combined output would be >>> 238A. The wire size required for this current over that distance is cost >>> prohibitive. >>> >>> A solution was to use a single 50kW 3 phase inverter at the array and then >>> convert it to 240V... somehow? Is anyone familiar with how to go about >>> doing this? My thought was to have a step down transformer at the POI and >>> pull off two legs to get 240V. Is this even a thing? >>> >>> The other, more expensive option is to use a step up transformer at the >>> array and a step down at the POI to get us a smaller wire size. >>> >>> Thanks for any input. >>> >>> >>> -- >>> Loren Ortiz Commercial PV Designer >>> >>> lo...@cal-solar.com (530) 274-3671 >>> >>> >>> >>> >>> Showroom located at: 149 E Main St. Grass Valley, CA 95945 >>> ___ >>> List sponsored by Redwood Alliance >>> >>> List Address: RE-wrenches@lists.re-wrenches.org >>> >>> Change listserver email address & settings: >>> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >>> >>> List-Archive: >>> http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html >>
Re: [RE-wrenches] Low voltage DC v. higher voltage DC
HI Harry, The battery is charged from the AC side correct? And is the charging algorithm inside the ABU. If so why couldn’t you use a generator to charge the battery? jay peltz power > On Sep 13, 2018, at 7:10 AM, Harry Mahon > wrote: > > Marco – > > The Sunny Boy Storage “Advanced Backup Unit” accessory or ABU will be > discussed at SPI in a couple weeks – first units are being stocked now at our > warehouses in US. The ABU will allow the SBS to be a grid former in case of > utility outage, however there are no plans to have any generator > inputs/controls to allow for battery charging from generat > And yes, BYD BBox HV 5.12/7.68/10.24 devices will be supported when available > in US (will be this year I understand) > > Mike > > - > > The SMA Sunny Storage looks promising. > > It will be able to work with the LGC RESU10 HV battery and, sooner rather > than later I hope, BYD package as well. > > And it will allow for a backup generator tie in. > > Ta-dah! > > marco > > On Thursday, September 13, 2018, Bruce Erickson <http://lists.re-wrenches.org/listinfo.cgi/re-wrenches-re-wrenches.org>> > wrote: > > > Hi Marco, > > > > I partially agree with you. I recently bid Outback, StorEdge, and Pika > > options for a GTBB customer, partly to understand pricing for myself, and > > found OB to be so much more expensive. The customer really wanted a system > > that would be to be able to charge the batteries off a generator in an > > outage, understandably. But the extra thousands in cost for OB ended up > > being prohibitive. Add-on rapid shutdown is a killer. So he’s opting for a > > nice modern high voltage DC system, with optimizers and built-in RSD, but > > when there’s an extended outage, he’ll have to hope the sun comes out right > > after the storm to recharge the batteries, or he’ll end up in the dark > > again, until the grid comes back. Maybe there’s a high voltage inverter > > that allows generator charging, or a third-party battery charger, that I’m > > not aware of. Otherwise high voltage systems are very limited for backup, > > at least in winter storm scenarios. > > > > *Bruce Erickson* > > Mendocino Solar Service > > PO Box 1252 > > Mendocino, CA 95460 > > 707-937-1701 > > 707-937-1741 fax > > bruce at mendocinosolar.com > > <http://lists.re-wrenches.org/listinfo.cgi/re-wrenches-re-wrenches.org> > > > > *Connecting Mendocino County to Solar Since* *1994* > > > > > > ___ > List sponsored by Redwood Alliance > > List Address: RE-wrenches@lists.re-wrenches.org > <mailto:RE-wrenches@lists.re-wrenches.org> > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > <http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org> > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > <http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html> > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm <http://www.re-wrenches.org/etiquette.htm> > > Check out or update participant bios: > www.members.re-wrenches.org <http://www.members.re-wrenches.org/> ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] Low voltage DC v. higher voltage DC
HI Drake, Can you upload that http again? The link doesn’t work. thx jay > On Sep 15, 2018, at 7:39 AM, Drake > wrote: > > Is this what you are referring to? > http://en.byd.com/energy/download/high-voltage/B-Box%20High%20Voltage%20Specification.p > > > At 10:10 AM 9/13/2018, you wrote: > >> And yes, BYD BBox HV 5.12/7.68/10.24 devices will be supported when >> available in US (will be this year I understand) >> >> >> >> >> > > ___ > List sponsored by Redwood Alliance > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org > ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] Multi-meters
HI Will, I found this unit from Japan. Hioki CM4372 jay peltz power > On Sep 13, 2018, at 5:28 AM, Will White wrote: > > Hello Wrenches, > > I've started doing some work on 1,000 VDC systems so I need to upgrade my > meters. What I'd really like is a clamp-on amp meter that is rated for 1,500 > VDC but they don't seem to exist. I want to get something now that I won't > have to upgrade in a few years if I end up working on 1,500 VDC systems. > > The only 1,500 VDC meter I've found are the Amprobe HD160C which is a > multi-meter (not clamp-on amp meter) that is rated for 1,500 VDC but can only > measure up to 2 A with their amp clamp attachment. The other option is the > Seaward Solar Utility Pro but I don't have that much money in the budget. > > Is it worth getting a 1,500 VDC meter or is 1,000 VDC enough? What are you > techs in the field using? > > Thanks, > Will > > -- > Will White > Curriculum Developer > > > e: w...@solarenergy.org <mailto:w...@solarenergy.org> > w: www.solarenergy.org <http://www.solarenergy.org/> > p: 802-272-3092 > > PV Installation Professional > # 093006-34 > > FACT: If we covered 0.33% of the earth with solar panels, we could power the > world with renewable energy. > Do you envision a world powered by renewable energy? Be the change > <http://solarenergy.org/donate>. > ___ > List sponsored by Redwood Alliance > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org > ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] Trojan L16RE-2V set-points
Hi Mac Here is the Trojan info you need https://www.trojanbattery.com/pdf/TrojanBattery_UsersGuide.pdf Looks like 4 hrs max absorb and 29.4v and that could be a bit long depending on how much solar, size of the generator and how they use the batteries Usually the set points are at factory default! Jay Peltz power. > On Sep 11, 2018, at 5:44 PM, Mac Lewis wrote: > > Hello wrenches, > > I inspected a system that another company had installed. It had single > string of 12 x Trojan L16RE-2V batteries about 2 years old. They had > experienced a battery melt-down. It looks as though the meltdown had > occurred internally, not from a bad connection. > > The system was dual stack Outback VFXR-3524A inverters (to be precise one was > a sealed unit). The set-points were as follows: > Absorb Voltage was 29.8V > Absorb Time was 6.0 hours > Float Voltage was 27.0V > Rebulk Voltage was 27.0V > End Amps was 0A > > These settings extended similarly to 2 x FM80 charge controllers. > > I was able to jumper the melted battery and get her power in 15 minutes. Her > installer had left her without power for 2 weeks. My clients will kill me if > that happened! > > Anyway, I believe these set-points are way out of whack and too aggressive. > The voltage is OK (Trojan recommends ~29.6V for this) but the Absorb time > seems way too long, Rebulk is too high and end amps isn't helping. However, > Im not finding a definitive article from Trojan that describes typical Absorb > times or even how to adjust towards a good Absorb Time, based on specific > gravity measurements or amperage absorption. > > My diagnosis is that these batteries have been cooked over the past 2 years. > In the electrolyte, there is noticeable "floaties". The client said that the > original installer had accused her of not using distilled water, but I don't > believe that would cause her symptoms. I believe the floaties are plate > material. > > I'd be interested in wrenches opinions familiar with these batteries if these > are appropriate settings for a low energy user. I will attempt to get > through to Trojan as well. > > Thanks in advance > > > > -- > > > > Mac Lewis > > "Yo solo sé que no sé nada." -Sócrates > > ___ > List sponsored by Redwood Alliance > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org > ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] Outback OPzV
HI Steve, I’d look at the Rolls Gel S2-2160. 2437 ah at C/20 3700 cycles to 50% I don’t know what the cost comparison is between the OB, Rolls and GS SLR batteries, jay peltz power > On Sep 11, 2018, at 12:44 PM, Steve Romo > wrote: > > Good afternoon everyone, > > What has been your experience with the Outback OPzV battery? I have a client > who destroyed a set of Solar One HUP batteries (2490 A/HR) by forgetting to > water them for a year. We are looking to take watering out of the equation. > He does need this much storage (maybe more) My next thought was 3 strings of > GS SLR 1000 batteries (cycle life is a lot better but at twice the cost) > I appreciate any and all input. > > -- > Steve Romo > Mountain Power Solutions LLC > NABCEP certified PV Installer #110112-124 > Kohler Certified Generator Technician > Generac Certified Generator Technician > > 970-433-6316 > ___: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org > ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
[RE-wrenches] New house LED lighting/switches
HI all I’ve got a client ( potential client) that is looking for info on “best” LED lighting for a house. Yes yes I know, be more specific. They should be dimmable color adjustable ( warm to daylight) 1. recessed ceiling lights 2. cable down/up lighting and possibly monorail lighting 3. switches: What he means is what about using wireless switches/controls. To me he means having a controller on the wall and smart phone control vs having hard wired switches. It makes some sense with the reduced wiring, and labor? 4. Brands 5. where to buy ( me) This is a very fast moving segment of the industry and its really hard to keep up, or at lease me anyway. I very much understand this is a very personal subject, and I know there will be lots of opinions out there! thanks jay peltz power ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] Off-grid refrigerator
Hi Dana Yes in the last year I bought a new refrigerator ( kitchen aid) And didn’t buy a LG due to really bad reviews, class action lawsuit on compressor problems etc. Too bad as there other stuff is really well made. I would only recommend a refrigerator that you can get repaired locally under warranty Jay Peltz Power. ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] Off-grid refrigerator
HI Will, Here are my recommendations 1. try to find out how loud it is. Most new ones are much louder than your old SF. Fans and all that. And they do run a lot of hours per day due to small compressor size. 2. get one that is repairable locally, much higher failures today than 10 years ago. 3. energy star 4. features that you want. The only features we’ve got are ice maker. Love it and wouldn’t get one without it. 5. As to defeating the defrost, if its even possible I would argue against doing that. While yes it uses more energy on any given day for auto defrost, overall unless you defrost often, ice is a wonderful insulator and it can and will end up using more energy to keep the freezer cold with an ice build up. And you won’t be able to turn off the door seal heaters, defrosters in the fridge part etc. And heck isn’t that also part of the fun of the new fridge, no defrost? Happy shopping jay peltz power > On Sep 8, 2018, at 10:25 PM, Tom at wagonmaker wrote: > > Almost 25 years ago, when we built our off grid home, we looked at the > limited options then available one of which was the Sunfrost. After looking > into things like relative efficiency, initial purchase cost and system > requirements, it became pretty obvious that the Sunfrost was an overpriced > option that had too many problems. For half the cost we bought a Vestfrost > and then simply added a bit more generating capacity to our array at far > less than the difference in cost between the Vestfrost and the Sunfrost. It > was the best decision on appliances we ever made. The 120 vac Vestfrost was > a bit less efficient but since we were generating our own power that > difference was irrelevant as the cost to provide the necessary capacity to > handle the efficiency difference actually resulted in us saving money and > also gaining a very reliable appliance. > > That was then and the Vestfrost was massively more efficient than the > standard refrigerators then available. Now, that model of Vestfrost is > nowhere near as efficient as the newest Energy Star compliant refrigerators > available at most appliance stores. Don’t waste time or money searching for > another DC refrigerator, there simply isn’t any benefit. It will be cheaper > to buy off the shelf and if you have to add a bit of generating capacity > getting another panel on your system will be way cheaper than than it was for > us back in the day...and back then it was still the better option. > > Tom > > > > From: Will White <> > Sent: Saturday, September 8, 2018 3:20 PM > To: RE-wrenches <> > Subject: [RE-wrenches] Off-grid refrigerator > > Hello Off-grid Wrenches, > > After 10+ years my Wife is finally sick of our Sunfrost RF-12. We'd like to > upgrade to something a little more modern that doesn't leak water all over > the floor when it's humid > > For you off-grid installers what's your go to refrigerator recommendation? > I'm going to go through the energy star website but I thought I'd consult > with the experts too. I'd like to find something that has a form factor > similar to the Sunfrost although I know that's going to be hard to find. > > Thanks, > Will White > > > > -- > Will White > Curriculum Developer > > > e: w...@solarenergy.org <> > w: www.solarenergy.org <http://www.solarenergy.org/> > p: 802-272-3092 > > PV Installation Professional > # 093006-34 > > FACT: If we covered 0.33% of the earth with solar panels, we could power the > world with renewable energy. > Do you envision a world powered by renewable energy? Be the change > <http://solarenergy.org/donate>. > > > ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] Trackers
Hi Chris, In regards to wattsun, which controller are they using? The website doesn’t give any details. The last one I did used a quite complicated one and it didn’t have easy to use external manual controls. Thx Jay Peltz power. > On Sep 6, 2018, at 1:13 PM, Chris Schaefer wrote: > > Chris, > > I've been using both All Earth Renewables (AER) and Array Tech. I really like > AER but the smallest they make is a 20 module rack. I use their 24 module (60 > cell) rack with a 320 to 335 watt module in my offgrid projects. One of the > reasons I like AER is because of the GPS tracking, no sensor to block with > snow. It is a very durable unit. Prior to AER I used Array Tech. They have > been sold off from wattsun and have made some upgrades with their linear > actuators but haven't installed a new unit since switching to AER 4 years > ago. The AT holds 12 60 cell modules. Feel free to call if you'd like some > more detail. > > Christopher 585-748-1870 > >> On Thu, Sep 6, 2018 at 12:12 PM, wrote: >> Hi Folks: I appreciate the input but I am looking for TYPES of trackers >> that you may be selling (and yes, I told him about adding more & cheaper >> solar modules than investing in a tracker, but it’s the customer’s >> decision). Zomeworks is not what the client wants; I would prefer dual >> axis; the customer’s in north central CA with a good resource. I say go >> with Array Technologies but I would think there must be something new and >> improved by now. >> >> >> >> --Chris Daum/Oasis Montana >> >> >> >> >> >> From: RE-wrenches On Behalf Of >> Dana >> Sent: Thursday, September 6, 2018 9:18 AM >> To: 'RE-wrenches' >> Subject: [RE-wrenches] Trackers >> >> >> > ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] mod waveform LED dimmer
HI Ray, Yea thats a good assumption based on CFL’s. But LED are different. What happens is that the LEDs will dim a small amount and then ( there are 4 LED lights in a light fixture) one will turn off for a short while ( few seconds) then it’ll come back on and another will go off and on and on it goes. I’ve see this on other systems from a generator with poor quality. Its pretty odd and totally random. The options for this customer are going back to incandescent, or maybe there is a LED/Dimmer combo out there that works. And as to trying out others, yea thought of that but they are expensive and could be a big rabbit hole. thanks jay > On Sep 5, 2018, at 4:44 PM, Ray wrote: > > Sorry I can't help with specific models, but my guess is that most dimmers > will work. They will probably buzz annoyingly due to the mod sine, and > probably die a relatively earlier death from the extra heat. That being said > they could last several years, and reduce total load. Let us know what you > find out. I'd probably just grab a couple from the local supply and play > with them. I do quite a bit of Mad scientist work here. > As the ancients taught us: "Better to let the smoke out in private, than be > embarrassed a thousand fold in the field". > Ray Walters > Remote Solar > 303 505-8760 > On 9/5/18 3:20 PM, jay wrote: >> HI All, >> >> I’m asking the group for a very obscure piece of information. >> >> I have someone with an very old Trace 2012 mod wave form inverter and wants >> to use their new LED bulbs with a dimmer >> >> Does anyone know of any LED/dimmer combos that will work? >> >> thanks in advance >> >> jay >> >> peltz power >> >> >> ___ >> List sponsored by Redwood Alliance >> >> List Address: RE-wrenches@lists.re-wrenches.org >> <mailto:RE-wrenches@lists.re-wrenches.org> >> >> Change listserver email address & settings: >> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >> <http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org> >> >> List-Archive: >> http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html >> <http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html> >> >> List rules & etiquette: >> www.re-wrenches.org/etiquette.htm <http://www.re-wrenches.org/etiquette.htm> >> >> Check out or update participant bios: >> www.members.re-wrenches.org <http://www.members.re-wrenches.org/> >> > > ___ > List sponsored by Redwood Alliance > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org > ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
[RE-wrenches] mod waveform LED dimmer
HI All, I’m asking the group for a very obscure piece of information. I have someone with an very old Trace 2012 mod wave form inverter and wants to use their new LED bulbs with a dimmer Does anyone know of any LED/dimmer combos that will work? thanks in advance jay peltz power ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
[RE-wrenches] Phone/ sun position apps
Hi all, I’m wondering about which apps people are using for determining shading and sun position. Thx Jay Peltz Power. ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] Forced air Furnace
Hi Dan For larger uses, buying 55 gallon drums is usually best if you can’t get bulk delivery. Where I live, they deliver kerosene though. Jay > ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] Forced air Furnace
I’ll add another choice to the thread which is kerosene The direct vent remote tank kerosene heaters are the most efficient, least costly way to go. Rinnai is one of a few Japanese heaters. Many people I’ve worked with have gone this way vs propane. Either direct vent or central heaters systems. And all have commented that the cost was significantly less with kerosene than with propane. That said where I live we can get kerosene delivered like diesel, in bulk. I don’t know if everywhere is like that. But either way, with best insulation design practices it greatly changes the metrics of heating design. With that reduction in heating load, central whole house heating is often way more expensive than with zone type heating. It’s back to reduce the load before you have to power it. If I was designing an off grid heating system it would be with kerosene vs propane. My 2 cents Jay Peltz Power. > On Aug 24, 2018, at 2:56 PM, Daniel Young wrote: > > Drake, > > The best thing to minimize blower power draw will be two fold. > Get the smallest BTU furnace you are allowed to (with and ECM blower). Since > blowers are generally sized at a nominal CFM/BTU of heat output. (Around > 30CFM/ 1000BTU for the usual heat pump or 90+eff furnaces) > Minimize head loss in the duct system. Head loss has an exponential effect on > energy use as a whole (blower motor and fuel efficiency) > Bigger distribution ducts > metal duct for corners and turns (i.e use good fittings) > little to no flex duct unless for straight runs >i. flex > duct always well supported and pulled tight, little to no slack allowed in a > flex duct job. > Etc… Good read in this article, and the attached presentation download: > https://www.energyvanguard.com/blog/secret-moving-air-quietly-through-your-duct-system > > Not knowing the home layout and specs it hard to give specific advise on that > side, but those two items are big drivers on actual power needs for blowers. > But as you said, the furnace is there for insurance costs, not primary > heating… > > Also, the unvented propane heater in a primary dwelling seems like a bad idea > to me. Is the home expected to be well sealed for air leaks? Blower door > tested, relatively well sealed would be a blower door number of less than 2-3 > ACH50 (air changes per hour @ a 50pascal pressure difference to the > outdoors), 1-1.5 is really good, and passive house is 0.6 and lower? Because > both the fireplace and the unvented heater could be bad news if that’s the > case… Something you might want to see if you client is conscious of. (Not > sure how far you are getting involved in the home design Drake.) > > With Regards, > > Daniel Young, > NABCEP Certified PV Installation ProfessionalTM: Cert #031508-90 > > > From: RE-wrenches On Behalf Of > Drake > Sent: Friday, August 24, 2018 4:52 PM > To: RE-wrenches > Subject: Re: [RE-wrenches] Forced air Furnace > > A wood stove heats the house, and will be the primary source of heat. An > un-vented propane wall heater is installed and can heat the small, earth > bermed, well insulated structure. A furnace will be a nice supplement, and > will quickly pay for itself in insurance savings. During even a moderately > cloudy day, it will be fine, but will not be used much on batteries. Still, > I'd like as efficient a model as possible. > > If I can find a unit with a 400 W draw, like the one in our on grid house, > that would be adequate. The specifications I've found on the blower motors > are sketchy. I will likely need to order it on line (or take a trip to a > neighboring city), so reading the nameplates might not be so easy. > > Does anyone know how to get accurate data on furnace blower motors? > > Thanks, > > Drake > > At 01:59 PM 8/24/2018, you wrote: > > Content-Type: multipart/alternative; > boundary="914ACDD867C6488AACA07365" > Content-Language: en-US > > I always try to talk the client into hydronic heating with ECM drive > circulation pumps. They do make ECM drive blower motors that can be > retrofitted in some furnace systems. Overall, its just a bad combination off > grid: the worse the weather is the less PV production you have, and this > corresponds to the same time that the furnace is operating 12 hours/ night. > They are either running the generator a bunch, or waking up in the morning to > a cold house with the power off, and dead batteries. If its an AC coupled > system, they won't even have any PV production the next morning either. This > is another reason AC coupled is not a great idea, or at least you need to > always have s
Re: [RE-wrenches] DC-DC converter for SQFlex
HI Gary, The customer is always right, ha. If they want a DC option, I know you can find the right part. As to how big of a DC DC converter, yea I would want it to handle whatever the pump could draw. If there is any way that a valve could be closed or a pipe frozen or clogged, the pump will push and push and push and draw max amount of watts. Under normal load, it won’t of course. PV direct you’ll be watt limited, but with a battery, no limits up to max pump watt draw and you don’t want the converter to fail. jay peltz power > On Aug 21, 2018, at 11:17 AM, Gary Higbee wrote: > > Hi Wrenches, > > I’m assisting a customer and well person in replacing a failed Lorentz > ETApump (after 15 years of intermittent use). We’re looking for a quality > DC-DC converter to power a not-yet- ordered Grundfos SQFlex 6 SQF-3 from a 24 > V Surrette battery bank (wish it was 48!). The pump draws a max of 8.4A and > the curves say we’ll need about 600 watts so I figure we’d want at least 70 > volts out. Ideal would be a higher DC output, say 200V (save a couple hundred > feet of larger copper, greater efficiency) and at least 3A (see questions). > > The primary power source will be 240V AC but my customer wants a fallback for > battery operation. We plan to use the Grundfos IO 101 SQFlex switch box, > which will switch to DC if the AC fails. Also the CU 200 SQFlex control unit, > so we can accommodate the existing float switch up the hill, etc. > > The Grundfos tech person I spoke with today said the DC system should be able > to supply 8.4A, regardless of the DC voltage.The pump curve says we need 600W > for maximum performance at the lift we’ve got. It seems to me that if we’ve > got 200V and need 600W we’d be drawing 3A. Yet if the Grundfos factory line > is there should be 8.4A available that’s 1680W. The tech guy said he didn’t > have specific information why we’d need 8.4A regardless of pump input > voltage. > > The Grundfos Product Guide says: > > Max. ratings are as follows: > • Maximum power input (P1) of 1400 W > • maximum current of 8.4 A > • maximum speed of 3600 rpm (think I read somewhere it’s 3000 rpm for this > helical rotor model) > > The pump delivers its maximum performance when one of the above parameters is > reached. > > Two questions: > > 1) Do any of you have experience running the SQFlex on DC, and what to make > of the 8.4A at any input voltage factory recommendation? Maybe basic > amps/volts/power calculations aren’t applicable given the pump electronics? > > 2) Are you aware of any DC-DC converters that will get us from a nominal 24V > battery bank to 200V, or somewhere between 70 and 200V, with an appropriate > current limiting amp rating to get us at least 600W (depending on thoughts > regarding the above question)? > > > Thank you, > > Gary > > Gary Higbee > Windstream Solar > Oregon License 17LRT > Renewable Energy Consulting > g...@windstreamsolar.com <mailto:g...@windstreamsolar.com> > 541-954-3881 > ___ > List sponsored by Redwood Alliance > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org > ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] SOC and LFP batteries and TriMetric
A follow up question to all of this: Does anyone know what parameters a BMS is using to determine SOC for lithium? A project I installed uses the Orion BMS jr for lithium batteries. It uses a normal shunt, voltage and also measures internal cell resistance to determine SOC. Jay Peltz Power > On Aug 21, 2018, at 10:29 AM, Howie Michaelson > wrote: > > Allan, have you talked directly with Bogart? > Howie > >> On Tue, Aug 21, 2018 at 12:56 PM Sindelar Solar >> wrote: >> Wrenches, >> I would like to broaden this topic a bit, please: we're currently >> installing our first Blue Ion LFP set (48kWh). I work almost exclusively >> with existing off grid systems, often older systems most of which have >> TriMetric monitors, either the TM2020 or newer TM2030. Has anyone >> successfully reprogrammed a TriMet to accurately register SOC and other data >> with LFP batteries? If so can you provide some guidance as to program >> settings? >> Thank you, >> Allan >> >>> On 8/20/2018 6:15 PM, Lou Russo wrote: >>> Jay, >>> The batteries are Blue Ion 2.0 from Blue Planet Energy, the 8kWh cabinet. >>> The listed Maximum Continuous Charge and Maximum Discharge Rate is 1C. >>> >>> Aloha, >>> Lou Russo >>> >>>> On Sat, Aug 18, 2018 at 6:27 AM Jay wrote: >>>> Hi Lou, >>>> Can you tell us which LFP batteries? >>>> And what rates of discharge/charge? >>>> Jay >>>> Peltz power. >>>> >>>> On Aug 17, 2018, at 12:09 PM, Lou Russo wrote: >>>> >>>>> Hello All, >>>>> >>>>> Does anybody have any insight in getting the SOC to report accurately on >>>>> the Outback FNDC when using batteries that have a minimal voltage curve? >>>>> I have several systems with LFP batteries that have both a eGauge >>>>> (communicating directly with the battery BMU) and a FNDC and I get wildly >>>>> different SOCs. In a typical 24 hour period (12am-12am) I get SOCs on >>>>> the FNDC that vary 2% to 34% of what the battery BMUs are reporting. I am >>>>> assuming that the BMUs are reporting accurately. I would think a 1%-5% >>>>> difference would be acceptable. >>>>> >>>>> Any help or thoughts on this subject would be greatly appreciated. >>>>> >>>>> Aloha, >>>>> Lou Russo >> -- >> Allan Sindelar >> al...@sindelarsolar.com >> NABCEP Certified PV Installation Professional >> New Mexico EE98J Journeyman Electrician >> Founder (Retired), Positive Energy, Inc. >> 505 780-2738 cell >> >> >> >> ___ >> List sponsored by Redwood Alliance >> >> List Address: RE-wrenches@lists.re-wrenches.org >> >> Change listserver email address & settings: >> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >> >> List-Archive: >> http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html >> >> List rules & etiquette: >> www.re-wrenches.org/etiquette.htm >> >> Check out or update participant bios: >> www.members.re-wrenches.org >> > ___ > List sponsored by Redwood Alliance > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org > ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
[RE-wrenches] Non breakable RV modules
Hi All What are good options for a portable module for RV use. One that you can move around, (it’s going to fall over)and connect with a cable to an camper. The old unisolar ones were perfect. Any recommendations are appreciated Size? 50-100 watts, 12v nominal. Thx Jay. ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] SOC, FNDC, and LFP batteries
Interesting thread as I was just in contact with someone with a LGchem coupled to a solar edge inverter. He’s seeing at times 20-25% less capacity than rated kWh and pretty much never actual capacity. Tech support gives some wishy washy answers as to why this would be. Where is the difference, is it in the communication between units or the BMS? And funny as he’s never seeing more capacity. Maybe there are some inaccuracies in the BMS’s? Standard OB, trimetric and midnight wiz bang meters all require frequent meeting of charge parameters ( volt/amps) to keep the devices accurate. I’ve got 4 meters that I compare and if they are full daily it’s about 1-2% difference between them. If it’s been 7-10 days since full, then they could be off by 10-15%+ off. Curious what others are seeing Jay Peltz power. > On Aug 18, 2018, at 9:40 AM, Jerry Shafer wrote: > > Lou > Sounds like you are having the same issue we did, l adjusted the size of the > battery down to 50% of the battery rating and so far the values appear to > follow in. We will also be installing a DC CT on the egauge to see and have > a better idea of whats going and out outside of the BMU > Jerry > >> On Fri, Aug 17, 2018, 12:09 PM Lou Russo wrote: >> Hello All, >> >> Does anybody have any insight in getting the SOC to report accurately on the >> Outback FNDC when using batteries that have a minimal voltage curve? I have >> several systems with LFP batteries that have both a eGauge (communicating >> directly with the battery BMU) and a FNDC and I get wildly different SOCs. >> In a typical 24 hour period (12am-12am) I get SOCs on the FNDC that vary 2% >> to 34% of what the battery BMUs are reporting. I am assuming that the BMUs >> are reporting accurately. I would think a 1%-5% difference would be >> acceptable. >> >> Any help or thoughts on this subject would be greatly appreciated. >> >> Aloha, >> >> Lou Russo >> l...@spreesolarsystems.com >> 808 345 6762 >> Spree Solar Systems LLC >> CT-34322 >> >> ___ >> List sponsored by Redwood Alliance >> >> List Address: RE-wrenches@lists.re-wrenches.org >> >> Change listserver email address & settings: >> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >> >> List-Archive: >> http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html >> >> List rules & etiquette: >> www.re-wrenches.org/etiquette.htm >> >> Check out or update participant bios: >> www.members.re-wrenches.org >> > ___ > List sponsored by Redwood Alliance > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org > ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] SOC, FNDC, and LFP batteries
Hi Lou, Can you tell us which LFP batteries? And what rates of discharge/charge? Thx Jay Peltz power. > On Aug 17, 2018, at 12:09 PM, Lou Russo wrote: > > Hello All, > > Does anybody have any insight in getting the SOC to report accurately on the > Outback FNDC when using batteries that have a minimal voltage curve? I have > several systems with LFP batteries that have both a eGauge (communicating > directly with the battery BMU) and a FNDC and I get wildly different SOCs. In > a typical 24 hour period (12am-12am) I get SOCs on the FNDC that vary 2% to > 34% of what the battery BMUs are reporting. I am assuming that the BMUs are > reporting accurately. I would think a 1%-5% difference would be acceptable. > > Any help or thoughts on this subject would be greatly appreciated. > > Aloha, > > Lou Russo > l...@spreesolarsystems.com > 808 345 6762 > Spree Solar Systems LLC > CT-34322 > > ___ > List sponsored by Redwood Alliance > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org > ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] Outback FM100
Hi Howie Yes you need a Mate 3 to program and view data for the FM100 Jay Peltz power. > On Aug 14, 2018, at 5:48 PM, Howie Michaelson > wrote: > > I am changing out an off-grid AC coupled SMA SB3000TL inverter tied to a dual > stack VFX3648 system with a Mate (original - not Mate3) and an FNDC, making > into a DC coupled array. It was set up as AC coupled originally because of > the distance the array was from the system (about 500 feet) and high > voltagecharge controllers were not available at the time. Now that there are > several options, we want to change it because the charging setup is less than > adequate. My first choice is to use an Outback FM100, only because it keeps > all the equipment tied together, although I'm not a big fan of Outback these > days. What are folks experience with the FM100? And apparently it needs a > Mate3 (not the Mate) in order to program and read it, true? Otherwise I will > probably go with either a Midnite 250 SL or a Schneider XW80-600. > TIA, > Howie Michaelson > Sun Catcher > ___ > List sponsored by Redwood Alliance > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org > ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] Cell Cracks
I had a module engineer tell me these are often a static discharge issue which happens during the lamination process. It’s not effecting the cell surface but the encapsulate above it. It’s not cracking but it looks like it. Jay Peltz power. > On Aug 14, 2018, at 7:31 AM, Dave Tedeyan wrote: > > Ray, > I have seen this many times while servicing systems. I have not noticed it > cause any issues, > at least for modules that are 3-8 years old. On one site, I too did an IR > scan and even curve > traced modules showing this, and there was no difference compared to other > nearby modules > that did not show this cracking. The attached photo is what I have seen a lot > of. It is very similar > although not exactly the same as the pattern your photos show. (you may need > to zoom in to > see it). > > Cheers, > Dave > > > Dave Tedeyan > Senior Engineer | Taitem Engineering, PC > > 10 Verizon Lane | Lansing, NY 14882 > o. 607.930.3481 x6 f. 607.277.2119 > www.taitem.com > > Solar • Sustainability • Energy • Design > B-Corporation Best for the World 2018 Honoree > >> On Tue, Aug 14, 2018 at 10:23 AM, Ray wrote: >> Hi All; >> >> I've had a colleague ask that I post a couple pictures of what appears to be >> cracks in cells under the glass. The glass is not damaged. These are Sun >> Edison modules, so apparently no warranty. Has anyone seen this, and are >> these possibly dangerous (hot spots) or is this nothing to worry about? An >> Infrared camera did not show any issues. >> >> As always your invaluable input is always appreciated. >> >> Thanks, >> >> -- >> Ray Walters >> Remote Solar >> 303 505-8760 >> >> >> >> > > ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
[RE-wrenches] Ace-clamps
Hi all. I am trying to figure out if ace clamp makes a micro inverter bracket. I’ve seen a photo of one, but can’t find it on their website. Could be old and discontinued or too new, or? I have a potential customer who likes the clamping method of the ACE vs S-5!, and I do as well. I’d be curious others take on that. This potential project ticks all the boxes for rail-less install. Low heat, no critters, no leaves, low pitch, few modules, micro inverter, standing metal seam. Thanks in advance Jay Peltz power. ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] battery temp sensors for older Trace/Xantrex inverters
HI Chris, Maybe someone else can confirm but I believe the OB and Midnite use the thermistors with the same values and are interchangeable. And both use same RJ-11 plug. jay peltz power > On Aug 4, 2018, at 2:04 PM, Chris Schaefer wrote: > > Good Day All, > > Running into a lot of missing or chewed up battery temp sensors for the older > Trace inverters. I'm looking for potential replacements. Anyone had any luck > using another vendor or do you have a direct replacement source for these? > > Thanks, > Christopher- > Chris Schaefer’s > <http://www.solarandwindfx.com/> > Tel/Fax 585-229-2083 or Cell 585-748-1870 > 5115 South Hill Road ~ Canandaigua New York 14424 > www.solarandwindfx.com <http://www.solarandwindfx.com/> ~ E-mail: > ch...@solarandwindfx.com <mailto:ch...@solarandwindfx.com> > > Thomas Jefferson, the author of our great Constitution, once said, > "democracy" will cease to exist when you take away from those who are willing > to work and give to those who would not." > > ___ > List sponsored by Redwood Alliance > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org > ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] M210 Enphase
Yea sure seems like a warranty issue to me. Let us know how enphase deals with it. Jay > On Jul 27, 2018, at 11:55 PM, Ron Young wrote: > > Hi Jay, there is a black tar like substance leaking out of the seams on two > inverters and from around the connection wire on a third. It’s not a lot but > seems like it shouldn’t be happening. There are 12 inverters in the array. > > > > > >> On Jul 27, 2018, at 6:51 PM, jay wrote: >> >> HI Ron, >> >> Leaking what? >> >> jay >> >> peltz power >> >>> On Jul 27, 2018, at 6:46 PM, RM You wrote: >>> >>> Anyone have a source of M210 Enphase inverters? I have a customer who has 3 >>> out of 12 that are leaking and as he is getting his roof re-done would like >>> to replace those before problems occur. They are still working properly but >>> I don’t know the likelihood of failure. I could replace them with 215’s but >>> the trunk cable plugs are different so would have to run a separate trunk >>> cable for just those 3 unless there is an adapter. Any suggestions wildly >>> appreciated ;) ! >>> >>> Ron >>> earthRight Solar - Solareagle.com >>> ___ >>> List sponsored by Redwood Alliance >>> >>> List Address: RE-wrenches@lists.re-wrenches.org >>> >>> Change listserver email address & settings: >>> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >>> >>> List-Archive: >>> http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html >>> >>> List rules & etiquette: >>> www.re-wrenches.org/etiquette.htm >>> >>> Check out or update participant bios: >>> www.members.re-wrenches.org >>> >> >> ___ >> List sponsored by Redwood Alliance >> >> List Address: RE-wrenches@lists.re-wrenches.org >> >> Change listserver email address & settings: >> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >> >> List-Archive: >> http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html >> >> List rules & etiquette: >> www.re-wrenches.org/etiquette.htm >> >> Check out or update participant bios: >> www.members.re-wrenches.org >> > > ___ > List sponsored by Redwood Alliance > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org > ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] M210 Enphase
HI Ron, Leaking what? jay peltz power > On Jul 27, 2018, at 6:46 PM, RM You wrote: > > Anyone have a source of M210 Enphase inverters? I have a customer who has 3 > out of 12 that are leaking and as he is getting his roof re-done would like > to replace those before problems occur. They are still working properly but I > don’t know the likelihood of failure. I could replace them with 215’s but the > trunk cable plugs are different so would have to run a separate trunk cable > for just those 3 unless there is an adapter. Any suggestions wildly > appreciated ;) ! > > Ron > earthRight Solar - Solareagle.com > ___ > List sponsored by Redwood Alliance > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org > ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
[RE-wrenches] Outback ags mate3s
Hi all I’m hooking up a generator with a built in 5 minute shutdown delay. The mate3s sends shut down signal, inverter disconnects from power. But since the generator keeps producing power the inverter reconnects after. Few seconds and starts charging again. The mate3s has a new feature “ac input reconnect delay time” However in setting this feature to 6 minutes the inverter reconnects after a few seconds like normal. Any suggestions as to fix or programming tips? Thanks Jay Peltz power. ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] UL/CSA listed battery monitor?
Putting a battery that generates massive amounts of hydrogen into a boat seems like a really bad idea to me. Jay Peltz Power > On Jul 10, 2018, at 2:34 PM, Hilton Dier wrote: > > Thanks for all the responses. The people on this list are gold standard. I’ll > look into the various monitors. > > The batteries are SAFT (now Alcatel) STM-140 flooded NiCads. I don’t know > where these people got them, but they were surplus of some sort. They have > tested them and culled a few bad ones. > > I’m thinking they may have to rely on the mercy and understanding of the > Canadian coast guard equivalent of an AHJ. If there are no listed monitors > there should be an exemption. Ignorance of SOC is worse for safety than a > non-listed battery monitor. But that would be logical, so... > > Hilton Dier III > Renewable Energy Design > Missisquoi River Hydro LLC > ___ > List sponsored by Redwood Alliance > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org > ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] Enphase question
Hi Jerry, Can the new EMU work with the older units? Jay Peltz power. > On Jul 6, 2018, at 11:59 PM, Jerry Shafer wrote: > > Wrenches, Ron > Thats a good thing with enphase, mix and don't need to match, you will need > inverters that connect in line or just seperate them with a > combiner/subpanel. You will need to stay away from the new Q inverter series > as its on a different frequency for comms, 190's 210's 215's and as l recall > the 250's all on the older EMU, they are getting harder to find but im sure > there are some out there. > Jerry > >> On Fri, Jul 6, 2018, 3:06 PM RM You wrote: >> I have a legacy system with 12 Sanyo HIT 215N panels and Enphase 210’s. >> Client wants to re-do roof and add two more panels when the system is >> re-installed. Are there any concerns with mixing Enphase inverters on a >> single string, e.g. adding a couple of 265w panels and appropriate >> inverters? We don’t do a lot of grid tie and this hasn’t come up before. >> >> Ron >> ___ >> List sponsored by Redwood Alliance >> >> List Address: RE-wrenches@lists.re-wrenches.org >> >> Change listserver email address & settings: >> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >> >> List-Archive: >> http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html >> >> List rules & etiquette: >> www.re-wrenches.org/etiquette.htm >> >> Check out or update participant bios: >> www.members.re-wrenches.org >> > ___ > List sponsored by Redwood Alliance > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org > ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
[RE-wrenches] Outback warranty
Hi all I have 2 old mate 1’s, pre 4.0 firmware. I just noticed on a new FNDC paperwork, a statement from OB that states they will update any pre 4.0 firmware to latest rev. ( as the FNDC requires 4.0 or better. ) When I called OB and talked to tech support, they said no, they wont cover it. I’m asking if anyone has another avenue, or advice on how to proceed? OB charges a lot for the upgrading since Alpha took over, which makes it not worth doing. Thanks Jay Peltz power ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] Wood pellet stove for off grid
Hi david, As someone who has a pellet stove, I wouldn’t buy another. I’d go with a kerosene heater, direct vent. Cheaper to operate, bulk fuel, cleaner, no mx, and probably uses less electrical energy and more efficient I think. ( no glow bar to start the burn cycle). Jay Peltz Power > On Jun 21, 2018, at 7:39 AM, David Palumbo wrote: > > Wrenchsters, > > I am looking for advice on selecting the right wood pellet stove for an off > grid house that will not be using regular firewood any longer. > It will be in the basement so the appearance doesn’t matter. > The home also has non electric LP gas heat. Looking for a secondary source > for security and to guard against gas price increase. > The home is 1,000 sq ft. 1-1/2 story (plus basement). Home has large air > movement grates up to first and second floor for heat. > Rental home – so reliable operation is valued > Would like auto feed on pellet stove > Low power draw is important as this is located in Vermont where the sun > doesn’t shine much in the winter. > I have heard that Harman stoves are high quality but they are expensive and > owner doesn’t need the stove to look like it belongs in the living room. > > Thanks in advance, > David Palumbo > Hyde Park, Vermont > > Sent from Mail for Windows 10 > > ___ > List sponsored by Redwood Alliance > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org > ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
[RE-wrenches] steel cased industrial batteries
HI All, I’ve wondering if there are recommendations for steel cased flooded industrial batteries. Would be looking for 12v packs, 1500-2000 amp hr. There are many brands out there, HUP, IBE, Enersys, others? Its been a while since I’ve had to even look at them and I figured someone out there has some current info, recommendations, best price etc. thanks jay peltz power ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] top of pole with no galvy
Hi Bruce You might check with Sunwize, or AMERESCO Jay > On Jun 7, 2018, at 4:02 PM, Bruce Erickson wrote: > > Hi All, > I have a super particular customer who needs a small top-of-pole rack, but > will not accept anything but aluminum or stainless (or bronze or titanium or > . . ). No galvanized steel! Anyone have a lead on a rack manufacturer that > has all aluminum pole tops, like Unirac used to make? > Thanks. > > Bruce Erickson > Mendocino Solar Service > PO Box 1252 > Mendocino, CA 95460 > 707-937-1701 > 707-937-1741 fax > br...@mendocinosolar.com > > Connecting Mendocino County to Solar > ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
[RE-wrenches] Xfmr's job?
HI Dave and everyone, Its interesting because there is a great deal of difference between OEM’s. Outback says 4kw at 120v for 8kw radian. ( tech support) Magnum says 27 amps at 120v, 16.7 amps at 240 for MS4024PAE ( from the manual) Schneider says 4200 watts at 120v on XW-6848 ( from the manual) Also I know that the Magnum allows you to charge with just 120v and I think the XW is the same, OB you have to have 240v. Cheers jay > On May 30, 2018, at 7:52 AM, Dave Angelini Offgrid Solar > wrote: > > The 8kw radian still has to have balance! You can't expect it to supply > 8kw @ 120vac. It can supply 8kw @ 240 vac. > > >> Does each of the 4 kW 240 volt inverters have a maximum on the 120-volt >> power it can supply? for example, can it supply 70% of the 4 kW on 120 >> -volts? >> This example would leave 5.6 kW of 120-volt? >> >> On Tue, May 29, 2018 at 11:09 PM, jerrysgarage01 >> >> wrote: >> >>> The Radian has 2, 4k, 240 volt inverters, so its different but the way >>> the >>> computer works it makes the same from the load side of things >>> Jerry >>> >>> >>> >>> Sent from my Verizon, Samsung Galaxy smartphone >>> >>> >>> Original message >>> From: frenergy >>> Date: 5/29/18 5:51 PM (GMT-10:00) >>> To: re-wrenches@lists.re-wrenches.org >>> Subject: [RE-wrenches] Xfmr's job? >>> >>> Hey folks, >>> >>>Outback FP2 with Xfrmr shifts power to "other" leg if that >>> leg needs more than the one FX can provide, right? Say, you need 5.5 KW >>> on leg 1, the Xfrmr pulls some power from the leg 2 (inverter) to >>> support that 5.5KW load on leg 1. >>> >>> My question (assuming above is accurate) is does the 8048 Radian do the >>> same? >>> >>> Thanks, >>> >>> Bill >>> >>> Feather River Solar Electric >>> Bill Battagin, Owner >>> 4291 Nelson St. >>> Taylorsville, CA 95983 >>> 530.284.7849 >>> CA Lic 874049 >>> www.frenergy.net >>> >>> >>> --- ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
[RE-wrenches] Pika energy equipment
HI All, Any of you installing the Pika equipment? Thoughts and is there retail pricing that can be shared? thanks jay peltz power ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] Fullriver Battery meltdown
Lead melts at 621. Plastics melt depending on the type between 212f and 491f ( for the most common ones) http://education.seattlepi.com/hot-water-melt-plastic-3626.html But melting and being able to be deformed is very different. jay peltz power > On May 10, 2018, at 2:48 PM, Chris Worcester <ch...@solarwindworks.com> wrote: > > Wow, Melting point > <https://www.google.com/search?q=lead+melting+point=H4sIAOPgE-LSz9U3MDItijco0dLJTrbST85Izc0sLimqhLCSE3PiU3NSc1PzSqxyU3NKMvPSFQryM_NKAFn3H808=X=0ahUKEwjH4smbj_zaAhUI-mMKHSXxAjIQ6BMImQIoADAd>: > 621.4°F . > > Chris Worcester > Solar Wind Works > NABCEP Certified PV Installer > Office 530-582-4503 > Cell 530-448-9692 > Fax 530-582-4603 > www.solarwindworks.com <http://www.solarwindworks.com/> > ch...@solarwindworks.com <mailto:ch...@solarwindworks.com> > > From: RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org > <mailto:re-wrenches-boun...@lists.re-wrenches.org>] On Behalf Of Starlight > Solar Power Systems > Sent: Thursday, May 10, 2018 1:43 PM > To: RE-wrenches > Subject: [RE-wrenches] Fullriver Battery meltdown > > Wrenches, > > Attached is a photo of my first thermal runaway event after 17 years and > thousands of battery systems installed. These were in an RV. I checked every > charge source and all are within specified charging parameters. No cause > found. The owner is a single elderly lady that uses very little power in her > RV and spend most of the time on shore power. She reported that the batteries > were dead when she unplugged from shore power. This was i the 23rd month > after installation. > > After I reported this to my Fullriver distributor, they told me that another > set of DC400-6 had melted down just 1 month earlier and that they had fused > together just like these. That is extreme heat. It is too peculiar to know of > two similar events. This meltdown happened within the 2 year warranty period > but my customer could not come back to us for another 3 months beyond the > warranty period. Fullriver would not allow anything towards replacement do to > the reporting date being grater than 24 months. > > I would like to know has anyone else had a similar failure with Rolls or > Fullriver AGM batteries, specifically L16 size. > > Thank you, > > Larry Crutcher > Starlight Solar Power Systems > > > > > ___ > List sponsored by Redwood Alliance > > List Address: RE-wrenches@lists.re-wrenches.org > <mailto:RE-wrenches@lists.re-wrenches.org> > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > <http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org> > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > <http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html> > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm <http://www.re-wrenches.org/etiquette.htm> > > Check out or update participant bios: > www.members.re-wrenches.org <http://www.members.re-wrenches.org/> > ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] Fire damage
The key here is how much? Assuming they have to take them off the roof, and assuming its pretty clear that there was no fire damage and that they were a name brand and no more than 3 years old. And now you need to get large pallets, and you won’t have any spacing for the modules. They are going to be dinged up, and scratched, they can’t be used for any system that’ll qualify for tax credits/rebates. I’d say $.05 per watt, and maybe they should be paid to take them off the roof. jay peltz power > On May 4, 2018, at 10:07 AM, Kristopher Schmid <sol...@legacysolar.com> wrote: > > Greetings wrenches, > > I have a client that is looking to buy some salvaged modules off of a > building that was near a fire. What kind of potential issues can you > anticipate? Smoke, heat, etc. Would it be enough to just test voc and isc > for a known cell temp and irradiance in addition to a visual inspection or > would an iv curve trace be necessary? > > Thanks for any information, > Kris > ___ > List sponsored by Redwood Alliance > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org > ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
[RE-wrenches] Large Off Grid Inverter?
There are many large 250kw to multi mw battery based inverters that should cover this project. Most are coming out of china, so I don’t know if UL is something they have. Princeton is one here in the USA, looks like 250kw and 500kwh is their largest on the web site. Sun Grow is one of many out of china. Most of these are using 600-1500vdc lithium battery banks, 50kw 1000v-1500v CC etc. A whole new ball game. There are also 50-75 kw units as well, I think the days of larger cluster inverter systems is coming to an end. The advantages of higher voltage battery banks is just too good not to use. jay peltz power ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] Chevy Bolt
Hi Darryl It has to do with the zero point crossing. With pure sine wave, it crosses almost vertical angle so no time spent there. Mod square wave usually has a flat crossing, totally screws certain things up. Jay Peltz power. > On Apr 24, 2018, at 8:39 AM, Darryl Thayer <darylsol...@gmail.com> wrote: > > I just spoke with my ev car expert, the onboard charger controls charge by he > says PWM there has always been a problem with PWM AC control on modified > square wave inverters. Causing failures when the switching is coincidental. > I forgot the exact reason but I have failed equipment using a modified square > wave inverter on portable tool charging equipment. > >> On Mon, Apr 23, 2018 at 1:45 PM, Ray <r...@solarray.com> wrote: >> Pretty sure the Magnum will work, since I have a customer with a Chevy Volt >> running on old Trace SW4024 inverters. Not mod sine, but they're not near >> as clean as the Magnums either. >> >> -Ray >> >> >>> On 4/23/18 12:33 PM, RE Ellison wrote: >>> I have a customer with a 20-year-old modified sine wave inverter that has >>> been no issue at all until recently when he arrived from New York City with >>> his Chevy bolt >>> >>> Obviously the Bolt will not tolerate the modified sine wave and we’re >>> discussing upgrading and we were wondering if the magnum inverter charger >>> would work in this situation? >>> >>> Thought that I would check with the knowledge base ! >>> >>> Thanks >>> Bob Ellison >>> ___ >>> List sponsored by Redwood Alliance >>> >>> List Address: RE-wrenches@lists.re-wrenches.org >>> >>> Change listserver email address & settings: >>> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >>> >>> List-Archive: >>> http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html >>> >>> List rules & etiquette: >>> www.re-wrenches.org/etiquette.htm >>> >>> Check out or update participant bios: >>> www.members.re-wrenches.org >>> >> >> ___ >> List sponsored by Redwood Alliance >> >> List Address: RE-wrenches@lists.re-wrenches.org >> >> Change listserver email address & settings: >> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >> >> List-Archive: >> http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html >> >> List rules & etiquette: >> www.re-wrenches.org/etiquette.htm >> >> Check out or update participant bios: >> www.members.re-wrenches.org >> > > ___ > List sponsored by Redwood Alliance > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org > ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] generator search
Hi all. This unit will be in a warm climate so no problems there. Are you all saying the build in AC/shore power charger is extremely inefficient? Jay > On Apr 9, 2018, at 1:46 PM, Michael Morningstar <mjmornings...@gmail.com> > wrote: > > Yes, the Cummins technician that commissions our generators insists that > locations with consistent low’s below 15F require the coolant heater. All but > two of my installs(outdoor) have omitted connecting the heater, and have seen > some brief sub-0 temperatures but generally average mid-30s. One of the two > that does have the heater connected, is located at a high elevation telecom > site, and when I serviced the system after not being there for a couple of > winters, it was found that someone had shut off both the battery charger > circuit and the coolant heater circuit and the generator didn’t seem worse > for the wear, and no coolant temp codes were thrown. > >> On Apr 9, 2018, at 1:14 PM, David Katz <dk...@backwoodssolar.com> wrote: >> >> Check to see if it has a 120 vac requirement to float the battery. The 20 kw >> one I have has a big electrical drain >> David >> >>> On Mon, Apr 9, 2018 at 11:50 AM jay <jay.pe...@gmail.com> wrote: >>> HI All, >>> >>> I’ve got a new project wanting a 22-25kw single phase 120/240vac water >>> cooled propane sound attenuated generator for an off grid situation. I’m >>> not going to be >>> With AGS activation. >>> >>> I”ve been looking at the Kohler 24 RCL ( meets all the above criteria) but >>> I’m checking to see if I can get it to work with 2 wire AGS. >>> >>> Onan also has one as well. >>> >>> Are there any other make/models that people would recommend or would >>> caution me against? >>> >>> Thanks >>> >>> jay >>> >>> peltz power >>> >>> >>> >>> >>> ___ >>> List sponsored by Redwood Alliance >>> >>> List Address: RE-wrenches@lists.re-wrenches.org >>> >>> Change listserver email address & settings: >>> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >>> >>> List-Archive: >>> http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html >>> >>> List rules & etiquette: >>> www.re-wrenches.org/etiquette.htm >>> >>> Check out or update participant bios: >>> www.members.re-wrenches.org >>> >> -- >> David Katz Sent from Gmail Mobile >> ___ >> List sponsored by Redwood Alliance >> >> List Address: RE-wrenches@lists.re-wrenches.org >> >> Change listserver email address & settings: >> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >> >> List-Archive: >> http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html >> >> List rules & etiquette: >> www.re-wrenches.org/etiquette.htm >> >> Check out or update participant bios: >> www.members.re-wrenches.org >> > > ___ > List sponsored by Redwood Alliance > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org > ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
[RE-wrenches] generator search
HI All, I’ve got a new project wanting a 22-25kw single phase 120/240vac water cooled propane sound attenuated generator for an off grid situation. I’m not going to be With AGS activation. I”ve been looking at the Kohler 24 RCL ( meets all the above criteria) but I’m checking to see if I can get it to work with 2 wire AGS. Onan also has one as well. Are there any other make/models that people would recommend or would caution me against? Thanks jay peltz power ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
[RE-wrenches] rail less standing seam attachments
HI All, I’ve got a client who is set on wanting to do rail less racking. I’m just working with him on overall design, hes doing the work. Its not a large system. 16 modules on two roof orientations, ( 4 on one, 12 on the other) with offset modules. Standing metal seam roof that is being installed with solar in mind, lots of fasteners. Hes very competent and pays attention to details. Any positive/negative recommendations. thanks in advance, jay peltz power ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
[RE-wrenches] Midnite MNBCB
Does anyone know the K/O sizes, spacing on the MNBCB? I can’t find any spec sheet on it and midnite hasn’t gotten back to me. I’m trying to figure out if any of the KO’s match the Classic charge controller KO spacing. Thanks Jay Peltz power. ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
[RE-wrenches] sharp module needed
HI All, If anyone has one or knows where to get a Sharp ND-167U1F? Please let me know off list thanks jay Peltz power ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] Fuses
Hi Jerry, Curious what amp rating the fuses are and what the ISC rating of the modules are. Thx Jay Peltz power. > On Mar 17, 2018, at 8:26 PM, Jerry Shafer <jerrysgarag...@gmail.com> wrote: > > Wrenches > I have a question that I do not have an answer for that I can prove, here it > is, I have 25 ABB 20 k. three phase inverters on a .5 meg ground mount site , > I have also seen this on systems with SMA tripower and Fronius 8.2 and trio > inverters on roof mounted systems, intermittently one combiner will blow a > fuse and 9 times out of 10 it will be a negative fuse. PPA holders or CFO's > of these systems would like to know why and other than a wake up surge or > shade issue which could effect the negative side but that's really a stretch > to say for sure. We have sites located in dry and wet locations around the > islands, we have different brands of inverters but the fuses are what the > inverter manufacture included in their combiner/switches. I am proposing to > only use a slow blow fuse in the future with all of our new systems > regardless of what is included in the combiners but with hundreds of fuses > out there its a tough call to replace as they fail or just for it and change > them all in advanc e per site. I Look forward to your thoughts and ideas, maybe its something else altogether. > Jerry > ___ > List sponsored by Redwood Alliance > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org > ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
[RE-wrenches] UPS no load draw
HI All, I’ve got someone asking me about powering a UPS model Liebert GXT4 UPS its a rack mounted unit. And I cannot find any power usage data on it. Would anyone maybe be able to hazard a guess or know a similar product that might have some numbers? And as I”m not familiar with this kind of product I just don’t have any ideas of power consumption. thanks jay peltz Power ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
[RE-wrenches] tesla solar roof tiles
OK all, I have a question about their tile roofs. Anyone know if they are set up for module level shut down? Or anybody have any anything about them? And I heard that they are advertising for installers, ie they are starting a new not Solar city install company? Comments? thx jay ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
[RE-wrenches] Lorentz pumps
HI All, I’ve got a client asking me about Lorentz pumps. I know they have sort of come and gone from the USA. Is anyone using them, have any pros/cons vs Grundfos and where to get them? thanks jay peltz power ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
[RE-wrenches] small 10kw diesel generators
HI All, I”m possibly in the market for a small 9-12kw diesel generator. With enclosure and set up for auto start. I’ve been looking at the Onan RV diesel sets. Cummins Onan QD 10.0 Diesel RV Generator | 10.0HDKCA-11506 Is 1800 rpm, water cooled, sound enclosure etc, for around $10,000 and fits the fill pretty well. Are there any others or does anyone have anything to say about these models from Onan? thanks jay peltz power ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] B3 Bypass breaker
This product has been out now and maybe its doing a similar thing as this not available product B3? http://connectder.com/products/ jay peltz power > On Feb 22, 2018, at 3:54 PM, Dana <d...@solarwork.com> wrote: > > Per my Master AC electrician, you do not have to arrange for a meter pull > with the utility. That to me is one less piece of brain damage to deal with. > I have not checked out the cost of a back fed breaker VS this item. > > > Dana Orzel Great Solar Works, Inc. > C - 208.721.7003 d...@solarwork.com > <mailto:d...@solarwork.com> > Idaho Contractor - # 028765 Idaho PV # 028374 > NABCEP # 051112-136 www.solarwork.biz > <http://www.solarwork.biz/> > "Responsible Technologies for Responsible People since 1988" > P Please consider the environment before printing this email. > > > From: RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] On > Behalf Of Lorenzo Ortiz > Sent: Thursday, February 22, 2018 1:10 PM > To: RE-wrenches <re-wrenches@lists.re-wrenches.org> > Subject: Re: [RE-wrenches] B3 Bypass breaker > > How is this different/better/less expensive than just doing a supply side tap > using insulated connectors (NSI's)? > > From what I can tell, it only works on panels that are fed with wire > conductors from the meter not hard bussing, so why not just tap it? > > > > On Thu, Feb 22, 2018 at 7:20 AM, Sam Haraldson <s...@onsiteenergyinc.com > <mailto:s...@onsiteenergyinc.com>> wrote: >> On Wed, Feb 21, 2018 at 8:00 AM, Dana <d...@solarwork.com >> <mailto:d...@solarwork.com>> wrote: >>> Has anyone used the B3 buss-bar bypass breaker setup yet? www.qfe002.com >>> <http://www.qfe002.com/> >> >> At SPI this year I spoke with one of their reps briefly and they indicated >> that after many years of trying to get the product ready it was finally >> going to be in production. I have researched it no further than that >> however. >> >> - Sam >> >> >> -- >> Sam Haraldson, Installation Manager >> Office: 406.551.6135 <tel:(406)%20551-6135> >> s...@onsiteenergyinc.com <mailto:s...@onsiteenergyinc.com> >> onsiteenergyinc.com <http://onsiteenergyinc.com/> >> >> >> ___ >> List sponsored by Redwood Alliance >> >> List Address: RE-wrenches@lists.re-wrenches.org >> <mailto:RE-wrenches@lists.re-wrenches.org> >> >> Change listserver email address & settings: >> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >> <http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org> >> >> List-Archive: >> http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html >> <http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html> >> >> List rules & etiquette: >> www.re-wrenches.org/etiquette.htm <http://www.re-wrenches.org/etiquette.htm> >> >> Check out or update participant bios: >> www.members.re-wrenches.org <http://www.members.re-wrenches.org/> >> > > ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] experience with the Tesla Powerwall
Hi Mac Thanks for mentioning this, I’ve wondered about it a lot. Maybe someone who’s a motor or electronics expert can chime in about what potential damage can occur. Electronics, motors, VFD’s, are used to seeing voltage +/- by a fair amount, but frequency is rarely off by more than a fraction of a percent. If the frequency shift is doing nothing more than turning the GT inverter off ( no stepped regulation) then why do that vs relay? It still makes for a 5 minute delay on restart, correct? Thx Jay > On Feb 15, 2018, at 7:48 AM, Mac Lewis <maclew...@gmail.com> wrote: > > Hi Wrenches, > > I just wanted to report that some electronics will fail and burn up during > frequency shift. We have an off-grid Sunny Island system (60-62 Hz operating > frequency) and we experienced sensitive electronics burning up during these > events. Its been too long since this happened to tell you exactly what > burned up. I think it was some HVAC controls. > > If its possible, I'd suggest a relay that opens up the grid-tie inverter as > opposed to waiting until frequency shift is necessary. A well-specified > relay can be highly reliable and not very expensive. > > Thanks > >> On Tue, Feb 13, 2018 at 11:26 AM, Glenn Burt <glenn.b...@glbcc.com> wrote: >> An installer I have been working with here in southern VT has also >> repeatedly applied to become an installer with Tesla for powerwalls with no >> response. >> I cannot in good conscience recommend their products based on their history >> and unresponsiveness in our area. >> They may be great for Puerto Rico, and now Australia, but have currently >> rated a thumbs down here. We are happy with the sonnen product, delivery and >> support. >> >> Glenn >> Sent from my 'smart' phone so please excuse spelling and typographical >> errors. >> >> -- Original message-- >> From: Dave Tedeyan >> Date: Tue, Feb 13, 2018 11:35 AM >> To: RE-wrenches; >> Cc: >> Subject:Re: [RE-wrenches] experience with the Tesla Powerwall >> >> I think that this may have come up before, but I do not remember there being >> a resolution: >> Do you guys have any tips on becoming a Tesla dealer? We have people ask >> about it all the time, but we have not been able to get Tesla to respond. We >> have installed Sonnen, which is also a great system, but the up front >> expense scares many people away. We are located in upstate NY which may have >> something to do with it. >> >> Cheers, >> Dave >> >> >> -- >> >> Dave Tedeyan >> Senior Engineer >> >> Taitem Engineering, PC >> 10 Verizon Lane, Lansing, NY 14882 >> Voice: (607) 930-3481 x6 >> www.taitem.com >> >>> On Tue, Feb 13, 2018 at 10:36 AM, August Goers <aug...@luminalt.com> wrote: >>> Marco, >>> >>> Thanks for sharing, it is good to hear details from an installer who is >>> living with a Powerwall. We starting selling the Powerwall 2 in 2017 and >>> have worked up a large pipeline. We have about 20 installed so far, but are >>> still waiting on utility permission to operate which is taking a long time. >>> We have spent a good deal of time commissioning and testing each system. >>> For the most part, our experience has been good although the commissioning >>> software and internet connectivity features have been buggy. Hopefully >>> those are issues that will be ironed out by Tesla. Otherwise, we've had the >>> systems correctly operate in on-grid and off-grid modes with both Sol >>> aredge and SunPower Equinox AC coupled systems. >>> >>> We installed conventional lead acid battery backup systems for over 10 >>> years and I can confidently say that Tesla's Powerwall and Gateway setup >>> is truly market-disruptive. The design flexibility of the Gateway setup, >>> the small size, minimal labor to install, and performance blow other >>> systems out of the water. I hope that other manufacturers are able to catch >>> up with this type of design. >>> >>> Best, >>> >>> August >>> >>> August Goers >>> >>> Luminalt Energy Corporation >>> >>> o: 415.641.4000 >>> >>> www.luminalt.com >>> >>> >>> >>> >>>> On Sat, Feb 10, 2018 at 12:23 PM, Marco Mangelsdorf <ma...@pvthawaii.com> >>>> wrote: >>>> Aloha Wrenches, >>>> >>>> I thought I'd share my own experiences with the Po
Re: [RE-wrenches] Remote battery monitoring
Hi mike, Install a tristar between the wind machine and the batteries like normal. Just set the absorb volts way high. That way it will never get to absorb and hence not regulate. I use this technique with hydro often, but with MPPT. Jay Peltz power. > On Feb 15, 2018, at 6:58 AM, Mike Kocsmiersky <mi...@spiritsolar.net> wrote: > > I am going to be working with a group of high school students this summer who > have very limited prior solar experience. We will be installing a small off > grid PV system (1.9kW) and small wind turbine generator (400W to 1kW). I > plan on using three Morningstar Trimetric controllers, one to control charge > of the PV array to the battery bank, a second as a load control relay, and a > third as a dump control. I can connect all the Morningstar controllers > together on an RS485 bus and connect to the solar charge controller via an > Ethernet link to the local area network. The Morningstar controllers will be > monitored via a classroom computer, and they will be able to give me Ahrs in > from the solar array, Ahrs to the load, Ahrs to the dump load, but not the > Ahrs in from the wind turbine generator. My question is, how can I add > monitoring of the wind turbine Ahrs that goes to the battery? I will need > something that can get to the local area network. Wifi or direct broadcast > may be difficult because I have to go through the electronics cabinet and two > brick walls. > > The only thing I can think of is to add a Tri or Penta Metric from Bogart > Engineering, which would duplicate the info the Morningstar controllers would > give me, but could add the Wind Turbine Generator as well, but perhaps there > is a better way. > > Thanks for your thoughts. > > Mike Kocsmiersky > Spirit Solar > 413 734-1456 (cell) > > _ > ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] 1/2 HP well pump soft start at 120 VAC
If its an old pump, you don’t say then all sorts of bad things are possible as parts wear out, all that. And it could also be your inverter which is probably getting pretty old as well. I’m starting to see the old SW’s fail and have all sorts of weird problems. my 2 cents. jay > On Feb 9, 2018, at 10:47 PM, jerrysgarage01 <jerrysgarag...@gmail.com> wrote: > > Wrenches > I think its in the inverter or battery but somewhere before it leaves the > inverter flickering lights indicates the inverter is seeing the issue up > close, a 4 k inverter is 33 amps AC but Over 166 from the 24 volt batteries > if the load if half that with lights and inverter is strugling need to look > at the battery voltage including cable drop. I have seen this quite a few > times over the years. > Jerry > > > > Sent from my Verizon, Samsung Galaxy smartphone > > > Original message > From: Darryl Thayer <darylsol...@gmail.com <mailto:darylsol...@gmail.com>> > Date: 2/9/18 5:25 PM (GMT-10:00) > To: RE-wrenches <re-wrenches@lists.re-wrenches.org > <mailto:re-wrenches@lists.re-wrenches.org>> > Subject: Re: [RE-wrenches] 1/2 HP well pump soft start at 120 VAC > > Dana my 1/2 HP 240 volt pump draws about < 2 amps, which is maybe 3.3 amps if > it is 120 volts. I wonder if the high volt drop is leaving your pump in > locked rotor for a long time, in which case a soft start will not help. > Perhaps a buck-boost transformer (about 150 watts) boosting 16% would get > the pump started faster? Do the wire size and length for calculating volt > drop. then use a 3.3 amp soft start. > > On Fri, Feb 9, 2018 at 6:24 PM, <penobscotso...@midmaine.com > <mailto:penobscotso...@midmaine.com>> wrote: > Hi Dana, >We have been using Grundfos SQ-O 1/2 hp, 5 GPM (or they have a 10 GPM > model) soft start pumps for years, with great outcomes. We have sold 60 > or so over the years with no returns. > > Daryl > > > > > Hey all you solar wise guys, > > > > > > > > > > > > I am looking for a recommendation based on your experience, not just data > > sheets for a 120 volt-9.8 amp-1/2HP well pump soft starter. Every time the > > well pump starts the SW4024 groans and the lights flicker. > > > > > > > > There are a lot of units that claim to soft start a ½ HP, but the reality > > is > > that they claim ½ HP but are limited to 3.3 amp+/- output. I asked how > > this > > is and was met with the usual, “gee gosh I am not sure.” I have one in > > hand > > now from ABB that is guilty of this claim. > > > > > > > > Some units claim to meet the spec but then you must limit the wire length > > to > > 30 meters. The well is 150’ from the house & 120 ft deep so a 270’ wire > > run > > with what the well guy threw in 18 years ago. VFW cable [multi strand > > cable] > > is a partial answer but not down in the well. > > > > Somewhere down the road the inverter & the well pump will get replaced but > > for now it is working. The newer 3PH wild AC drives are amazing on a > > Radian > > Inverter. You cannot even tell the well is pumping till it has been for a > > while and the fans kick on. > > > > > > > > Suggestions & directions that have proven reliable for you? > > > > Thanks. > > > > ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
[RE-wrenches] outback FM-100 CC
HI All, Does anyone have any experience with the Outback FM -100 CC? thoughts, pros cons etc? Its new but I’m sure there are some of you out there that have been using it. thanks jay peltz power ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] My .02 - 12/24v garage door opener.....
So why not use one of the garage doors that has a built in backup battery and just charge the built in battery directly? Its got all the internals already done? Install a CC and PV module and you are all done? Jay peltz power > On Feb 1, 2018, at 12:18 PM, Jerry Shafer <jerrysgarag...@gmail.com> wrote: > > John > Samlex makes small pure sine wave inverters from 12 to 48 volts and down to > 150 watts > Jerry > > On Wed, Jan 31, 2018 at 5:23 AM, Dana <d...@solarwork.com > <mailto:d...@solarwork.com>> wrote: > Wow, this is flash from the past… I had almost forgotten about running DC in > a house or garage. > > With todays inverter efficiency’s & costs VS. the cost of proper DC wire > sizing, garage lighting?, & having to modify a reliable lift system, etc. > > Is there really a cost savings in the longs run? > > > > It’s a garage, are you going to need to run any AC tools, battery chargers? > > I mean it is a potential man cave, really now…. > > > > > > Dana Orzel Great Solar Works, Inc. > > C - 208.721.7003 <tel:(208)%20721-7003> > d...@solarwork.com <mailto:d...@solarwork.com> > Idaho Contractor - # 028765 Idaho PV # 028374 > > NABCEP # 051112-136 www.solarwork.biz > <http://www.solarwork.biz/> > "Responsible Technologies for Responsible People since 1988" > > P Please consider the environment before printing this email. > > > > > > From: RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org > <mailto:re-wrenches-boun...@lists.re-wrenches.org>] On Behalf Of Darryl Thayer > Sent: Wednesday, January 31, 2018 3:46 AM > To: newrewrenches <RE-wrenches@lists.re-wrenches.org > <mailto:RE-wrenches@lists.re-wrenches.org>> > Subject: Re: [RE-wrenches] 12/24v garage door opener. > > > > I have measured the energy used by a garage door opener on more than one > occasion. they draw a fair amount of power while operating, however. they > don't draw power otherwise so the total energy is very low. I am wondering > if a low cost non pure sine inverter to AC operated off the switches which > would be low voltage would not serve the same low energy use and reliability > of a DC garage door opener > > > > On Jan 31, 2018 2:39 AM, "John" <j...@gosolar.co.nz > <mailto:j...@gosolar.co.nz>> wrote: > > Hi all, any recommendations where to find 12 or 24v garage door openers. > Can’t remember this coming up on the list beforehand. It is just for a > single car garage door.Don’t want to use an inverter, usually better to > go direct to a dc motor. > > Once I have a suitable opener, I can design the rest of the system around it. > > Thanks for any/all input. John Veix, > GoSolar Ltd, N.Z. > > > ___ > List sponsored by Redwood Alliance > > List Address: RE-wrenches@lists.re-wrenches.org > <mailto:RE-wrenches@lists.re-wrenches.org> > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > <http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org> > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > <http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html> > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm <http://www.re-wrenches.org/etiquette.htm> > > Check out or update participant bios: > www.members.re-wrenches.org <http://www.members.re-wrenches.org/> > > > ___ > List sponsored by Redwood Alliance > > List Address: RE-wrenches@lists.re-wrenches.org > <mailto:RE-wrenches@lists.re-wrenches.org> > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > <http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org> > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > <http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html> > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm <http://www.re-wrenches.org/etiquette.htm> > > Check out or update participant bios: > www.members.re-wrenches.org <http://www.members.re-wrenche
Re: [RE-wrenches] has anyone ever had this happen?
wow, such great information I’ve gotten from you all. It all seems pretty clear that this cost + is quite unusual, and I take to heart what you have said. As an aside, pretty unusual to have almost unanimous opinions here on the wrenches, no? FYI, I”ve done many systems in Baja and I get paid 100% in advance before anything ships. To either the end user here in the states or to a freight forwarder. Yes once it reaches them, I no longer have control. And the client is responsible for any damage enroute in MX. Yea lots of weird stuff happens down there! OK now I’ve got to contact their money guy. Thanks again all, jay > On Jan 23, 2018, at 2:24 PM, penobscotso...@midmaine.com wrote: > > Hi Jay, > My advice is walk away unless they want to meet your terms. You will > save yourself a tremendous amount of trouble/waiting/lost sleep/lost > money. I do 50% of my business internationally, mostly in the > Caribbean. If they do not accept my very reasonable terms (prepay for > all materials, 50% labor due upon the start of the project, balance due > on completion) they are highly unlikely to be on the up and up with > you. > As best possible, deal with known entities, take deposits through wire > transfers to your account and do not put yourself in a position to be > taken advantage of in a way that you cannot afford. If they want > quality, they must understand they have to pay for it. I have designed > six systems over the past fifteen years in Mexico and not one has come > to fruition. It was my time wasted, but nothing else. > > Daryl DeJoy > www.penobscotsolar.com > www.islandsolarbahamas.com > > > >> Pre-build it in a shipping container here! Have them pay for it all and >> inspect before shipment. They can keep a small portion for your final >> labor, travel, and expenses in a 2-way escrow account. When you are safely >> home you get the final amount and they get back an amount that is more >> than the amount you received. It is not cheap to set something like this >> up so collect a fee at the start! >> >> You have to do something to protect your most valuable treasure! >> >> Dave Angelini Offgrid Solar >> "we go where powerlines don't" >> http://members.sti.net/offgridsolar/ >> e-mail offgridso...@sti.net >> text 209 813 0060 >> >> >> > ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
[RE-wrenches] has anyone ever had this happen?
HI All, I’ve had a large company want to do a project and they want me to invoice it as follows. They said it had to do with knowing the cost of the system, but that doesn’t seem right to me. Now I don’t want to get screwed here, and it sure seems that could happen. I’m pretty sure I know what you all will say, but I feel like I needed to get a bit of a reality check. As I mostly do projects on a handshake, dealing with large companies isn’t too common for me. 1. give them wholesale pricing ( line item by item) 2. add margin, but small one is all they’ll accept Project is an off grid, no permits, in Mexico, remote site and pretty big: 16kw inverter, 9kw PV, etc. Thanks jay peltz power ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] RV solar with SunPower
HI Mac, Sunpower used to have a white paper that showed positive ground was only needed above a certain voltage. Like 200v+ from memory. I don’t know if these particular modules would fall into that category. jay peltz power > On Jan 20, 2018, at 9:59 AM, Jerry Shafer <jerrysgarag...@gmail.com> wrote: > > Mac > I have used the sunpower 318 on trailers with the outback charge controller > FM-60, which was wired for positive ground. However this was the only power > on board, did not have any issues when connected to the truck or via the > outback PS 2 except when I connected the laptop to the Mate 3 and had it > plugged it to the inverter power, this would pop the GFI, I used an optical > interface to prevent this from happening. I will say the Outback is more > expensive then the panel so it may not be worth it. > Jerry > > On Sat, Jan 20, 2018 at 3:43 AM, Mac Lewis <maclew...@gmail.com > <mailto:maclew...@gmail.com>> wrote: > Hi Wrenches, > > I have a buddy that would like to use a leftover SunPower E20-327-C-AC, panel > on his RV. Obviously he would need to take the inverter off. What I'm not > sure of is if this panel can operate in an ungrounded configuration, or > negative ground or does this still need a positive ground? If it does need a > positive ground, are there any decent MPPT charge controllers that are fully > isolated from PV to battery side, that would allow PV + ground and Battery - > ground? > > Thanks > > -- > > > > Mac Lewis > > "Yo solo sé que no sé nada." -Sócrates > > > ___ > List sponsored by Redwood Alliance > > List Address: RE-wrenches@lists.re-wrenches.org > <mailto:RE-wrenches@lists.re-wrenches.org> > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > <http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org> > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > <http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html> > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm <http://www.re-wrenches.org/etiquette.htm> > > Check out or update participant bios: > www.members.re-wrenches.org <http://www.members.re-wrenches.org/> > > > > ___ > List sponsored by Redwood Alliance > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org > ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] Concorde Lifeline Battery failures
HI Darryl, What size battery are you looking for? In a battery enclosure etc? jay peltz power > On Jan 19, 2018, at 10:25 PM, Darryl Thayer <darylsol...@gmail.com> wrote: > > I am about to order AGMs for two backup power systems, help, they will be in > float all the time (except for emergencies. I have a set of C pure lead > that was installed in 2003 and are still serving, the Last cycle was last > July for a two-day outage, What batteries do you recommend? > > On Fri, Jan 19, 2018 at 10:26 PM, William Miller <will...@millersolar.com > <mailto:will...@millersolar.com>> wrote: > Friends: > > I had a similar experience with Trojan vented L-16s about two years ago: all > of a sudden the product would not perform as it used to. A vendor let slip > that plate chemistry had been modified. I was later told that charge voltages > needed to be higher than ever recommended previously-voltages difficult to > achieve off-grid. This product degradation has been discussed here. Likewise > it was helpful to corroborate experiences. Thanks, everyone! > > William Miller > > > On Jan 19, 2018, at 4:12 PM, Maverick Brown <maver...@mavericksolar.com > > <mailto:maver...@mavericksolar.com>> wrote: > > > > Same here! We use mostly SunExtender and have had the same issue. As far as > > I know, they are the same battery with different labels. I have had some > > success in being a LOT more aggressive with voltages & times and sometimes > > going above FLA settings to get banks to recover and perform closer to > > spec. Makes me nervous though, since more than 50% of a customer’s > > investment can just vaporize with what one thought was appropriate charge > > settings. I suggest EQ as the new norm for AGMs, especially in > > grid-tied-battery-backup cases and where off-grid use does not give > > adequate absorb time. > > > > > ___ ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] automatic transfer switch
HI Dave and Chris, Good points, however. I’ve had radian board failures which shut it all down. You are correct if a power module goes down then it will still continue working. This project doesn’t need telecomm redundancy but close. And if the inverter shuts down then the AGS won’t start. So yea maybe a bit overkill but its a long long ways to go for a site visit. And again, 50 amps max ( 30 really) and would be good to have built in mechanical bypass. Nema 1 thanks, jay > On Jan 19, 2018, at 7:36 AM, Dave Angelini Offgrid Solar > <offgridso...@sti.net> wrote: > > I think so also for the same reason Chris! So I guess I don't understand > why you need the external transfer switch Jay? > Is not the internal radian transfer switch the less is more for offgrid? > --Dave > >> I think Radians are redundant anyway, if you parallel the output they will >> keep going when one fails. Also, the 8KW are two x 4KW modules, both can >> function independently. I know this because we lost one at home and kept >> going until a replacement arrived. >> >> On Thu, Jan 11, 2018 at 7:03 PM, jay <jay.pe...@gmail.com >> <mailto:jay.pe...@gmail.com>> wrote: >> >>> HI all, >>> >>> I’m doing a project with 2 radians in a redundant configuration. >>> Each one would go into a transfer switch to power the common load. >>> >>> I’m looking for a good, fast transfer switch. 30amp 120/240 is fine. >>> And maybe a mechanical feature as well. >>> Code isn’t an issue >>> Will be off grid, remote mexico. >>> >>> There is the Iota of course, but was just looking for options. >>> >>> thx in advance, >>> >>> jay >>> >>> peltz power >>> >>> >>> >>> >>> ___ >>> List sponsored by Redwood Alliance >>> >>> List Address: RE-wrenches@lists.re-wrenches.org >>> <mailto:RE-wrenches@lists.re-wrenches.org> >>> >>> Change listserver email address & settings: >>> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >>> <http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org> >>> >>> List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches >>> <http://www.mail-archive.com/re-wrenches@lists.re-wrenches>. >>> org/maillist.html >>> >>> List rules & etiquette: >>> www.re-wrenches.org/etiquette.htm <http://www.re-wrenches.org/etiquette.htm> >>> >>> Check out or update participant bios: >>> www.members.re-wrenches.org <http://www.members.re-wrenches.org/> >>> >>> >> >> >> -- >> Chris Mason >> NABCEP Certified Solar PV Installerâ„¢ >> Solar Design Engineer >> Generac Generators Industrial technician >> >> www.cometsolar.com <http://www.cometsolar.com/> >> <http://www.cometenergysystems.com <http://www.cometenergysystems.com/>> >> 264.235.5670 >> 869.662.5670 >> Skype: netconcepts >> ___ ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] Schneider 600volt Charge Controller
HI All, I”m curious how you are all dealing with the arc fault requirement for CC’s? thx jay peltz power > On Jan 18, 2018, at 2:58 PM, Dave Angelini Offgrid Solar > <offgridso...@sti.net> wrote: > > Yep same here the ubiquitous CH361 and a midnite SPD and a Delta. I very > rarely need more than 2 strings so fuses and not used. I would never want > 600v floating around in any enclosure with other electrical code or not! I > know grid -tie does this all the time but not for offgrid. IMHO. > > There are a few other choices I have had to use I can dig up if needed. PM > me. > > Dave Angelini Offgrid Solar > "we go where powerlines don't" > http://members.sti.net/offgridsolar/ > e-mail offgridso...@sti.net > text 209 813 0060 > >> Hi Howie, >> >> I have installed about 10 of these and all have worked well, longest >> operating unit about 3 years old. My only complaint is the 600V input >> breakers are not really thought through, as my understanding is code does >> not permit 600VDC within the PDP, Midnite, etc enclosure. So we use a >> SquareD CH361 external fused disconnect and keep all the 600V wiring >> external to the PDP. Curious how others approach that. >> >> Kevin Pegg >> EA Energy Alternatives Ltd. >> 37471 Hwy 16 E >> Telkwa, BC V0J 2X2 >> 250-846-9888 >> Http://www.EnergyAlternatives.ca >> >> >> From: RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] On >> Behalf Of Howie Michaelson >> Sent: January-18-18 8:35 AM >> To: RE-wrenches <re-wrenches@lists.re-wrenches.org> >> Subject: [RE-wrenches] Schneider 600volt Charge Controller >> >> Hi All, >> Anyone have feedback/review of the 600 volt Schneider Charge Controller >> that they'd care to share? I have an existing Conext XW+ off-grid system >> with combox communication setup which currently has about 1.5 kW of solar >> feeding through 2 MX60s (no hub). We'll be adding about 5kW (on a TPM >> about 150' away) and I'm trying to decide if overall it would be better to >> use the Schneider 600v (which I haven't used before, although I have >> serviced the 150v XW with no real complaints). Typically I would use a >> Classic200, but given the ability to integrate with the XW6848 and >> communicate through the Combox for more offsite visibility, I'm >> considering the Schneider, but only if it's not going to provide me with >> the benefit of added service calls. >> TIA! >> Howie >> ___ >> List sponsored by Redwood Alliance >> >> List Address: RE-wrenches@lists.re-wrenches.org >> >> Change listserver email address & settings: >> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >> >> List-Archive: >> http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html >> >> List rules & etiquette: >> www.re-wrenches.org/etiquette.htm >> >> Check out or update participant bios: >> www.members.re-wrenches.org >> >> > > > Dave Angelini Offgrid Solar > "we go where powerlines don't" > http://members.sti.net/offgridsolar/ > e-mail offgridso...@sti.net > text 209 813 0060 > > ___ > List sponsored by Redwood Alliance > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org > ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] Off grid DC Loads: DC Converter
Can you tell us: Battery make,model and size? Jay Peltz power. > On Jan 15, 2018, at 12:32 PM, Daniel Young <dyo...@dovetailsolar.com> wrote: > > Hello Wrenches, > > I have a client that is running into an issue with his off grid system. The > system is 3yrs old and they are starting to notice their AGM battery bank is > loosing capacity, in reality they are noticing the generator is triggering > more often. They want to try to lower the frequency of the generator > triggering if possible. > > The system is not occupied during much of the winter (unconditioned, which > further hurts the battery bank capacity), but the client has a security > system with a cell modem installed and always on. This fortunately allows > Optics-RE access, but unfortunately based on the FNDC shunt readings, is > pulling a consistent 150w from the battery bank. Currently the network and > security equipment is powered from standard wall-warts running on AC. > > I’d like to help the client extend the time between generator cycles by > taking the network loads and powering them directly from the battery bank > (the loads are all 12Vdc). Does anyone have any recommendations for a decent > quality DC_DC converter that would be applicable? Given inverter losses and > the efficiency of the typical wall-wart, I’d expect the running loads to be > closer to 80-100w rather than the 150w we see now. The intent is to then take > the inverter into search mode, or even switch it off, to remove the tare > losses there, and also to take all the wasted power from the standard > wall-warts and go to a single, more efficient dc power supply. > > Any recommendations on a good DC_DC converter are appreciated. > > With Regards, > > Daniel Young, > NABCEP Certified PV Installation ProfessionalTM: Cert #031508-90 > Dovetail Solar and Wind > > __ > ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
[RE-wrenches] automatic transfer switch
HI all, I’m doing a project with 2 radians in a redundant configuration. Each one would go into a transfer switch to power the common load. I’m looking for a good, fast transfer switch. 30amp 120/240 is fine. And maybe a mechanical feature as well. Code isn’t an issue Will be off grid, remote mexico. There is the Iota of course, but was just looking for options. thx in advance, jay peltz power ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] Wire management with S5! Railless System
Hi Ray Here are a ton of newer clips that carry 2-many wires, in different configurations, straight, 90 degree etc Most in SS some now in synthetic. And yea it’s kind of a pain with that type racking. Talk to Bryan at PV cables, he stocks lots of them. 707-923-3000 Jay Peltz power > On Jan 10, 2018, at 9:18 PM, Ray <r...@solarray.com> wrote: > > Hi All; > > I was wondering what folks were doing these days for wire management on > Standing seam roofs with the S5! clamps and no rails. I'm at a loss (once > again) for how to secure the home runs without a rail. I have some of those > module edge clips, but those only hold one wire, and I've had them slip off > (wire dangling visible from ground.) > Also most suppliers seem to only carry the universal S5! clamps, but I have > found those to really bend up the metal on certain types of standing seam > roofs. I wanted to order the recommended model for the particular roof. AEE > quit carrying S5 altogether. > Give me your Standing seam wisdom. > > Thanks, > > Ray Walters > Remote Solar > ___ > List sponsored by Redwood Alliance > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org > ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] blue planet batteries
HI Drake, Here is the contact info for the western sales rep. She’s been very helpful and has provided manuals and answers to my questions. Ava Gibson | Regional Sales Manager Blue Planet Energy Systems | www.blueplanetenergy.com <http://www.blueplanetenergy.com/>(415) 944-7966 Changing the way we power the world Jay peltz power > On Jan 6, 2018, at 8:26 AM, Drake <drake.chamber...@redwoodalliance.org> > wrote: > > Will these work on Sunny Island systems? > > Thanks, > > Drake > > At 04:04 PM 1/4/2018, you wrote: > >> >> JayOur office has done research on quit a gew batteries, the Blue Ion Blue >> Planets battery has been very good in our testing. Feel free to talk off >> listJerry >> >> >> Sent from my Verizon, Samsung Galaxy smartphone >> >> Original message >> From: jay <jay.pe...@gmail.com> >> Date: 1/4/18 8:35 AM (GMT-10:00) >> To: RE-wrenches <re-wrenches@lists.re-wrenches.org> >> Subject: [RE-wrenches] blue planet batteries >> >> While we are talking about batteries, >> >> Does anyone have any experience with the Blueplanet lithium for off grid? >> >> Do they communicate with the inverter system is a big question? >> >> thx >> jay >> >> peltz power >> ___ >> List sponsored by Redwood Alliance >> >> List Address: RE-wrenches@lists.re-wrenches.org >> >> Change listserver email address & settings: >> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >> >> List-Archive: >> http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html >> >> List rules & etiquette: >> www.re-wrenches.org/etiquette.htm >> >> Check out or update participant bios: >> www.members.re-wrenches.org >> >> ___ >> List sponsored by Redwood Alliance >> >> List Address: RE-wrenches@lists.re-wrenches.org >> >> Change listserver email address & settings: >> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >> >> List-Archive: >> http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html >> >> List rules & etiquette: >> www.re-wrenches.org/etiquette.htm >> >> Check out or update participant bios: >> www.members.re-wrenches.org > > ___ > List sponsored by Redwood Alliance > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org > ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
[RE-wrenches] blue planet batteries
While we are talking about batteries, Does anyone have any experience with the Blueplanet lithium for off grid? Do they communicate with the inverter system is a big question? thx jay peltz power ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
[RE-wrenches] Leoch batteries
Does anybody have any experience or info about these batteries? Thx in advance Jay ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
[RE-wrenches] Covering modules
Hi All, happy holidays. I’m looking for any studies or data about the dangers of “covering modules” and assuming they are safe to work on. I have a group that I think is going to need some harder data than me telling them it’s not safe. Thanks Jay ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] DC-DC converter question
I’ve used Iota or Powermax over the years for this exact situation with great reliability. Maybe today there are less expensive options? Jay Peltz power. > On Dec 19, 2017, at 6:15 AM, Roy Butler <r...@four-winds-energy.com> wrote: > > FYI.It appears that Solar Converters may be out of business. > > Roy Butler > Four Winds Renewable Energy, LLC > 8902 Route 46, Arkport, NY 14807 > 607-324-9747 www.four-winds-energy.com > > Check out the 14th Annual Small Wind Conference > A Gathering of Installers, Manufacturers, Dealers, & Distributors > April 9-10, 2018 Twin Cities, MN > www.smallwindconference.com > > Although no trees were killed in the sending of this message, > a large number of electrons were terribly inconvenienced. > > >> On 12/19/2017 7:28 AM, solar1onl...@charter.net wrote: >> Allen, John, et al, >> Aren't DC-DC converters a mainstay of Solar Converters, Inc. product >> line? >> Just to toss another manufacturer into the mix. >> Stay warm, stay safe, >> Bill Loesch >> Solar 1 - Saint Louis Solar >> 314 631 1094 >> >>-From: "John Blittersdorf" >> To: "RE-wrenches" >> Cc: >> Sent: 19-Dec-2017 11:54:47 + >> Subject: Re: [RE-wrenches] DC-DC converter question >> >> Allan, >> I have used the Mean-well converters several times and have had good >> luck. My other choice would be an Iota but definitely more expensive. >> >> John Blittersdorf >> Rob Stubbins Solar >> >> On Tue, Dec 19, 2017 at 1:29 AM Sindelar Solar >> wrote: >> >> > Wrenches, >> > The time has come to upgrade a longtime client's 1985 12V system >> and >> > original Trace 1512 inverter. The inverter still works fine after >> 32 >> > years of continuous operation, but 12V is too limited to allow much >> > expansion. The power system has numerous 12V loads - mostly >> lighting >> > throughout the home, as the 12V SunFrost fridge will also be >> replaced, >> > so a 24-12 step-down DC-DC converter is part of the upgrade. >> > >> > Is there any reason that I shouldn't use a Mean Well RSD-300B-12 >> > (https://www.trcelectronics.com/ecomm/pdf/rsd300.pdf) [1] wouldn't >> fill the >> > bill? I'm familiar with this brand, as they were used for years by >> Array >> > Technologies to step down voltage to run tracker drives, and I have >> > never known (or heard of on this list) of a failure. The price is >> right >> > too at a bit over $100. >> > >> > Any reviews, cautions, or other recommendations? >> > Thank you, >> > Allan >> > -- >> > >> > *Allan Sindelar* >> > al...@sindelarsolar.com >> > NABCEP Certified PV Installation Professional >> > New Mexico EE98J Journeyman Electrician >> > Founder (Retired), Positive Energy, Inc. >> > *505 780-2738 cell* >> > >> > ___ >> > List sponsored by Redwood Alliance >> > >> > List Address: RE-wrenches@lists.re-wrenches.org >> > >> > Change listserver email address & settings: >> > > >> > List rules & etiquette: >> > www.re-wrenches.org/etiquette.htm >> > >> > Check out or update participant bios: >> > www.members.re-wrenches.org >> > >> > >> ___ >> List sponsored by Redwood Alliance >> >> List Address: RE-wrenches@lists.re-wrenches.org >> >> Change listserver email address & settings: >> >> List rules & etiquette: >> www.re-wrenches.org/etiquette.htm >> >> Check out or update participant bios: >> www.members.re-wrenches.org >> >> >> Links: >> -- >> [1] https://www.trcelectronics.com/ecomm/pdf/rsd300.pdf) >> >> ___ >> List sponsored by Redwood Alliance >> >> List Address: RE-wrenches@lists.re-wrenches.org >> >> Change listserver email address & settings: >> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >> >> List-Archive: >> http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html >> >> List rules & etiquette: >> www.re-wrenches.org/etiquette.htm >> >> Check out or update participant bios: >> www.members.
Re: [RE-wrenches] Outback inverter-generator question
A mate 3 will work with any OB model. I’ve got one on my 14 year old vfx jay > On Dec 17, 2017, at 11:44 AM, Sindelar Solar <al...@sindelarsolar.com> wrote: > > Ron, > > I agree with Jerry here, and will add a bit more. I'll venture that neither > generator is being seriously hurt, but neither is what's happening good for > them. > > This is a case where more specific info is needed to diagnose the problem > remotely. VFX or VFXR? Which specific Honda generator? What is the site > elevation for deration (looks like you're in BC, so maybe 2,000')? > > This points out the importance of including a Mate in such a remote location, > as that's your only diagnostic tool when something goes amiss. In that region > with its short cloudy days the loss of generator charging in winter could be > dangerous or worse. > > I'm gonna guess that he has the Honda EM 5000is generator. I haven't seen or > worked with that model, but I'm familiar with the older 3000is. These are > inverter-based generators. The 3000 was a fair choice with the early Outback > FX and VFX series, because the 120V output matched the input of the Outback. > (The primary issue was overly-fast overload response, faster than the FX > could control its surge input while charging batteries. The gennie would > sometimes pop its output breaker if a pump or fridge came on; if the owner > didn't hear the engine speed drop it could run for hours without doing > anything.) The 5000 is 120/240, with a user-accessible *"120/240V Selector > Switch: *Choose between using both 120 and 240 Volts, or 120 Volts only. This > allows for the total generator output to be available through any of the 120 > volt outlets, limited only by the capacity of the individual outlet." > > My guess is the customer has accidentally set the switch on 120/240, so only > one leg is feeding the FX. The FX is set to take the full 120V output, so is > overloading the 1/2-output leg. The inverter can't hold acceptable voltage > and unlatches, then repeats its input sequence. When the load drops out the > gennie drops to idle. Have him check this switch first. > > If not this you may have to do a call, bringing a Mate with you. (I don't > know if a modern Mate3 will work with the non-R VFX, but an OB tech can > likely tell you, if you can reach one.) > > Good luck diagnosing at a distance - I hope that it's just the switch. > > Allan > > On 12/16/2017 7:04 PM, Jerry Shafer wrote: >> Ron >> A 5 k 120/240 genny pushing a 24 volt 3500 watt sounds way over kill and >> only pushing one leg only will result in issues, have not seen them with >> hondas but have with others. No mate means no programming so it might be >> over throttling the little inverter. You did not say anything about the >> batteries so we cant do the math but with the miss match it is not >> surprising that there are issues. Is the a PS-1 type panel or anything >> besides the inverter. maybe its me but I don't see parts required to make >> this a safe system. the Gen set issues also fit if there was no proper >> programming done. these can be fun to get all fixed up right and doing what >> they are designed to do. >> Jerry >> 255 *24 = 6120 / 2 = 3060 / (5000/2) => a 20 amp 120 vac is 2400 with this >> as an example with not much to go on, with the battery bit IF the batteries >> were dead they would be charged in just over an hr. and NO l did not take >> any losses into account but this was with D-8 DCFLA not sealed AGM's >> >> On Sat, Aug 12, 2017 at 2:32 PM, Ron Young <solarea...@solareagle.com> >> wrote: >>> Have a client where I recently installed an Outback VFX3524 inverter in >>> June. He’s using a Honda generator and has recently started having issues. >>> He has been complaining that the inverter seems to be running hot but I >>> believe this is because he doesn’t have good ventilation around it. He is >>> probably also running high on the loads. He doesn’t have a Mate so can’t >>> identify the error. He is in a remote location and I am currently unable to >>> travel due to fire restrictions in my area (major BC wildfires). >>> >>> Here is his recent email: >>> -Seems the inverter is recognizing the power in as an issue, and throwing >>> an error. >>> -My existing 5000 Honda generator has been online with the unit since you >>> installed it. >>> -The last few days, when there is very little load, or the unit goes to >>> float, the generator goes into a high rpm. >>> -My existing 5000 Honda crapped out on me this morning, and holds a low >>> r
Re: [RE-wrenches] Storage Battery Permitting
HI Jerry, If you were installing a UPS system, would you need permit? I’m asking, I don’t know. Jay > On Dec 13, 2017, at 2:02 PM, Jerry Caldwell <solarcow...@yahoo.com> wrote: > > Dear Wrenches, > Has anyone installed storage battery systems with no PV or other generation > source? I see no info on local building department websites about permitting > storage batteries. I've heard one person refer to battery storage as a > "energy storage appliance" and allege that no permits are required for this. > I'm asking because I am bidding on a small battery only installation. It's > pretty much just a battery pack and an inverter. The installation is a test > installation for a company who writes software to manage battery > installations. The management of this company sounded surprised when permits > were mentioned. > As always, any help is appreciated. > Best,Jerry Caldwell > ___ ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] Breaker trip
HI Mac, This is a pretty common event. Yes the CC is dumping its caps into the load as the load is in a sense overloading the batteries. IE they are not able to deliver the amps and so the CC is helping. A larger breaker might help, or one technique I’ve used before ( advice from midnight) is to put a longer output cable on the CC. Slows the pixies down so you are less apt to dump the capacitors. However you don’t mention the battery size or age. I would suspect that you are starting to have some battery issues as thats the only time events like this occur. With this new larger load either the battery bank is too small and therefor struggling to supply current, and/or the age of the batteries is causing a reduction in current or you have one/few bad cells that are not normally seen except in conditions like this, or you have a bad connection in/to/on the battery bank or some combo. jay > On Dec 6, 2017, at 4:18 AM, Mac Lewis <maclew...@gmail.com> wrote: > > Hello wrenches, > > I've got a mysterious breaker tripping that I need some ideas on how to fix. > > Original system: > Array 6 x 235W Kyocera modules > 1 x Outback FM60 charge controller > 1 x Magnum MS 4024 PAE inverter > > Upgraded system we stacked a second inverter to accommodate an air > compressor: > Array 6 x 235W Kyocera modules > 1 x Outback FM60 charge controller > *2 x Magnum MS 4024 PAE inverter* > > There have been no changes to the solar array, just to the inverter side of > the system. We have been getting intermittent breaker tripping (a couple > of weeks between) on the battery breaker side of the charge controller. > The basics have been checked and rechecked. Torque is good on all sides of > the breaker all the way to the battery bussing. > > The only thing that I can think of is that during a surge on the AC side > its sucking enough current out of the charge controller caps to trip this > breaker occasionally. > > Has anyone experienced this? The only way I can see to fix it is to go > with a larger breaker ampacity, but maybe there is something better. Does > anyone no how quickly the max current setting in the Outback can respond, > would dropping this help? > > Thanks > > -- > > > > Mac Lewis > > *"Yo solo sé que no sé nada." -Sócrates* > ___ > List sponsored by Redwood Alliance > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org > ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] battery buss bar stock
HI All Thanks for the information on the buss bars. And FYI the Stormcopperstore is not longer live. But the stormpowercomponents is the correct one. Would this also be the place to get battery series interconnects? Or are is there anywhere else that someone can recommend. thanks again for all the help jay peltz power ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] battery buss bar stock
So I”m curious about the location of your breakers. Can you elaborate about that? Thanks jay peltz power > On Dec 2, 2017, at 1:51 PM, Gary Willett <g...@icarussolarservices.com> wrote: > > JERRY: > > I always specify separate breakers per string (175A or 250A, depending on > string ampacity) mounted as close to the battery bank as possible. And I > require that if I am to be engaged for maintenance (planned or unplanned) > after commissioning. Shunt-trip breakers facilitate meeting Rapid Shutdown > requirements. > > Separate string breakers make battery maintenance and trouble shooting so > much easier and well worth the first cost investment. Especially so when you > have bad or weak cells/batteries, uneven string discharge/charge current, and > need to isolate the culprit(s). > > If I have a maintenance arrangement with the customer, individual string > breakers allow me to quickly/safely perform string/battery SOH (state of > Health) testing with an internal resistance tester and/or a load test on > individual batteries without removing wiring/busbars/etc. > > Regards, > > Gary Willett PE > Icarus Engineering / Solar Services LLC > > ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
[RE-wrenches] battery buss bar stock
HI All, I’m wondering if anyone has a good source for battery buss bar stock. Either pre made ones or stock I can use to make myself. It would be for larger Rolls GEL 2v in this case but other battery sizes/types as well. thanks jay peltz power ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] SunBandit Solar PV Hot Water
Does anyone know how they actually operate? I”m thinking they are using a variable AC voltage output from the micros to operate at MPP matching the resistance of the heating element? IE more PV watts, higher AC voltage, more load. Lower PV watts, lower AC voltage, less load? Thanks, jay Peltz Power > On Nov 11, 2017, at 9:32 AM, Dana <d...@solarwork.com> wrote: > > I installed one SunBandit solar hot water system about 1.5 years ago and the > client is still thrilled with the performance. It is a well-constructed > system. My only consideration is it arrives in one very heavy crate that is a > monster to handle & uncrate. The tank is a beast, very heavy to move around, > but well-constructed. > I would give this design & system, both 5 stars & 2 thumbs up. > > After many years of solar thermal glycol installations there are many up > sides to this product. > No plumbing - no glycol. > No excess heat issues to address during late summer. > Once the tank is hot the PV just idles. > No power out issues - steam buildup. > No pumps to maintain - replace. > Everything is very heavy duty constructed almost to the point of too heavy > duty. > > I was sufficiently impressed with the system to consider one on my current > home project but between solar thermal direct injection to the slabs and 6.4 > KW of excess PV in the summer, I am doing a hybrid system. Once the battery > bank is full, shunting the excess PV to a 240-volt electrode as needed and & > in the winter using excess PV production as available & solar thermal once > the slabs are sufficiently warmed. I am using the SOLARLOGIC controller to > address the control of the solar thermal decisions. > http://www.solarlogicllc.com/products/slic-solarlogic-integrated-controller/ > > > Dana Orzel Great Solar Works, Inc. > 208.721.7003 d...@solarwork.com > Idaho Contractor - # 028765 Idaho PV # 028374 > NABCEP # 051112-136 www.solarwork.biz > "Responsible Technologies for Responsible People since 1988" > Please consider the environment before printing this email. > > > -Original Message- > From: RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] On > Behalf Of Kirpal > Sent: Saturday, November 11, 2017 9:56 AM > To: RE-wrenches <re-wrenches@lists.re-wrenches.org> > Subject: [RE-wrenches] SunBandit Solar PV Hot Water > > Hi Folks!! Wanted to collect any feed back from anyone who has used the > SunBandit Solar hot water systems. Working well? Not working well? I just > installed a system on my home and of course the winter sun is scarce so it > may be a while before I get to fully asses its capabilities. I am thinking > of offering them to our customers but wanted to see if anyone had a track > record on them before I dive deep. > Thanks! > > > Sunny Regards, > Kirpal Khalsa > Oregon LRT#25 > NABCEP Certified PV Installation Professional Oregon Solarworks LLC > www.oregonsolarworks.com > 541-299-0402 > > ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
[RE-wrenches] franklin solar pump equipment
Has anyone used the Franklin pump Fhoton solarpak, Fhoton HR Solarpak, or the sub drive solarpak? thanks jay peltz power ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
[RE-wrenches] outback GSLC parts
HI All, Does anyone know if its possible to buy the inverter positive DC bus bars separately? ( its the part that goes from the breakers to the power modules) And if so where? My next GSLC I’m looking to use the most striped down version but if I can’t get the bus bars its hard to mount the main inverter breakers. thanks jay Peltz power ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
[RE-wrenches] adjustable back legs for mounts
Hi All, I’m having trouble finding adjustable slide style back legs for a client who wants to adjust his low profile array. I can’t find them from Iron Ridge, Unirack, DPW, Where/who can I get them from? thanks jay peltz power ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
[RE-wrenches] lithium battereis
To follow along with the lithium questions, I’m wondering what thoughts/information people have on prismatic vs cylindrical lithium family batteries? My questions are quality,cycle life, pros/cons,recycling? Thanks jay ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] breaker instead of fused disco
I would imagine that if the breaker and enclosure had the correct AIC ratings it should work. But its PG, enough said. jay peltz power > On Oct 3, 2017, at 10:21 AM, Jerry Caldwell <solarcow...@yahoo.com> wrote: > > Dear Wrenches with experience in PG territory: > I'm installing a system with a line side tap. Can I use a small subpanel > with room for only one circuit breaker instead of a fused disconnect? The > NEM application, step 2 requires you to select a fused disconnect from their > list of approved devices. Does anyone have experience with PG granting a > variance on this requirement? > > Thanks in advance. Any help is appreciated. > Jerry Caldwell510.205.2798 > ___ > List sponsored by Redwood Alliance > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org > ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
[RE-wrenches] lithium battery
Hi All, I’m looking for a lithium battery for a street light lead replacement. Size is approximately 30 - 40 amp hrs, 12v and BMS included is preferred. Any recommendations out there? thanks jay peltz power ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] OutBack Power MATE3 to MATE3S Upgrade
Can you be more specific about the fndc interface issues. What wasn't working and the fix is new M3s firmware yet to be released? Thx Jay > On Sep 20, 2017, at 4:10 AM, <d...@foxfire-energy.com> > <d...@foxfire-energy.com> wrote: > > Seems earlier versions of the 3s had a glitch that didn't play nice with > FN-DC.. OB tech said a new version wasn't available till early Oct.. Still > had control from Optics RE but no local control.. > > Good Luck > > db > > > Dan Brown > Foxfire Energy Corp. > Renewable Energy Systems > (802)-483-2564 > www.Foxfire-Energy.com > NABCEP #092907-44 > > > Original Message > Subject: [RE-wrenches] OutBack Power MATE3 to MATE3S Upgrade > From: Matthew Sirum <matthewsi...@gmail.com> > Date: Wed, September 20, 2017 6:12 am > To: re-wrenches <re-wrenches@lists.re-wrenches.org> > > Greetings All, > > I'm preparing to replace an existing OutBack Power MATE3 System > Display/Controller with the new MATE3S. The system is a grid tied 5 > stack of Radian GS8048A Inverter/Chargers. I am interested to know if > any of you may have done this and if you encountered any issues or > have any insights to pass along. This system does have a generator > and uses the Advanced Generator Start (AGS) function to control > generator start/stop and battery charging while the generator is > running. I believe this is the only Display/Controller based function > the system is using, so it will likely need to be programed and setup > in the new MATE3S. I am hopeful that all other programing is stored > in the Radians and will not need to be reprogramed/entered to the new > MATE3S. The system is connected to OpticsRE (OutBack Power's system > monitoring website/service). I assume we may need to do some > programing from the new MATE3S and/or from the system's OpticsRE site > to enable communication since the new MATE3S may have a different IP > address, MAC Address, and etc than the MATE3 we are removing. > > We are hopeful the new MATE3S will allow the system to function better > with its OpticsRE site and not need to be reset every couple months. > > Please let me know if you have any experience or thoughts to offer. > > Have any of you installed and setup the new MATE3S? Any Issues, > insights, or comparisons to the MATE3 to report? > > Thank you! > > Best regards, > > MATT > > Matthew Sirum > P.O. Box 1227 > Greenfield, MA 01302-1227 USA > phone: +1.413.773.0611 > email: matthewsi...@gmail.com > ___ > List sponsored by Redwood Alliance > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org > > ___ > List s > ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
[RE-wrenches] Schneider youtube video for SCP
I”m looking for a video of how to use the SCP that I can forward to a client. thx jay peltz power ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] Dusty off -grid conditions
Hi William Sounds like Baja. With such limited details, I'd consider conditioned space via AC unit. It would keep the batteries cool, inverter, CC, and ancillary units dust free. Then you can use the equipment you want. But if that isn't an option, the XW series has a much better design for dust. The fan doesn't blow across the power electrics, but behind it over the transformer and FET heat sink. Jay Peltz power. > On Sep 1, 2017, at 11:41 AM, William Miller <will...@millersolar.com> wrote: > > Friends: > > I am designing an off-grid system that will be in a pretty dusty environment. > The inverter was going to be a Radian 8 K. > > Have any of you successfully mitigated dust problems with design features? > > What inverters might someone suggest? Sealed units? The environment is also > hot. > > Thanks in advance. > > William Miller > _ > ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] Fluke 337 DC Clamp meter vs Outback
Hi Dan You can use the shunt MV reading via say fluke 87 to double check the amps that your clamp on is reading. Jay > On Aug 28, 2017, at 2:47 PM, Dave Angelini Offgrid Solar > <offgridso...@sti.net> wrote: > > Looks like you need a 2nd meter to test the sushi... --Dave > > > Dave Foxfire EnergyDave >> My fluke 337 DC clamp meter is consistently reading about 10 A less than >> what I'm seeing on the flex max and Mate3.. Outback tells me my fluke is >> lame.. Bad sushi? >> >> Dan Brown >> Foxfire Energy Corp. >> (802)-483-2564 >> www.Foxfire-Energy.com >> ___ > ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
[RE-wrenches] Elithion BMS
Does anyone know anything about Elithion BMS systems? Or had experience with them? Would be used for control on tesla salvage batteries, to control upper/lower voltage safety relays. thanks in advance, jay peltz power ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] Wanted: AC centrifugal pump with soft start
Hi Ray I believe it's been replaced by the scala 2 And seems like a much better pump too. Jay > On Aug 11, 2017, at 1:17 PM, Ray <r...@solarray.com> wrote: > > We've used the Grundfos MQ series for years for exactly that purpose. > > Chief Technical Officer, RemoteSolar.com > BS Mech Engineering, 1988 > Former NABCEP Certified, 2004-2016 > Licensed Master ELectrician, Colorado > 303 505-8760 > >> On 8/11/17 2:14 PM, Dave Angelini Offgrid Solar wrote: >> Quite happy here with the Grundfos Scala2. >> >> Dave Angelini Offgrid Solar >> "we go where powerlines don't" >> http://members.sti.net/offgridsolar/ >> e-mail offgridso...@sti.net >> text 209 813 0060 >> >> >> >>> Happy Friday, Mechanix~ Sometimes I encounter "off the grid clients" who >>> pressurize their household plumbing using an AC centrifugal pump. When the >>> pump starts, the batteries pucker & the lights flicker. >>> >>> I'm on the quest for surface mounted pressurizing pumps that are fitted >>> with AC soft start motors. Shouldn't this be an idea whose time has come? >>> 1/3 hp or 1/2 hp should suffice, which could be handled at either 120vAC >>> or >>> 240vAC. The technology is already available in submersible pumps such as >>> "Grundfos SQ"...now we just need it ported over to a surface mounted >>> centrifugal. >>> >>> Thanks in advance for any leads that might help me find a supplier for >>> this >>> type of pump. The Wrench List is the Bomb~ >>> >>> Mick Abraham, Proprietor >>> www.abrahamsolar.com >>> >>> Landline: 970-731-4675 >>> Cell phone or for text messaging: 970-946-6584 >>> ᧠> ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] SimpliPhi Power PHI3.4 Smart -Tech Batteries
Hi Dave, This is wonderful info. And it leads into the what happens when it reaches LVD? Given that it is using almost 10% per day of battery capacity for the BMS, what happens when the charging source for whatever reason shuts down. ( CC dies while people are gone for a few days for one example) The BMS turns off the loads, but what turns off the BMS and how do you turn it back on when it happens? Thx Jay Peltz power > On Aug 9, 2017, at 6:21 PM, Dave Angelini Offgrid Solar > <offgridso...@sti.net> wrote: > > FYI, the LG Chem RESU10 consumes about 40 watts or less with the XW+ main > breaker off. > > > >> Hi Jay and Dave, >> >> LiFeBlue battery has a wireless Bluetooth monitor that is connected to the >> BMS in each battery. SoC, current, cycle life, voltage, health, battery >> faults and more is provided on the free IOS or Android App. Up to 62kWh at >> 48 volts available today. >> >> http://www.lifebluebattery.com/the-smartest-lithium-battery/index.html >> >> Larry >> >> >> On Aug 4, 2017, at 5:05 PM, Jay <jay.pe...@gmail.com> wrote: >> >> Yes true. I haven't found the perfect off grid lithium battery. But until >> the prices come down, I become a better sales person, or I get rich >> clients not a big problem for me. >> You will have to use external % meter, but been doing that for long time. >> >> Sure good comm would be better, however one of the questions no one seems >> to have an answer for is energy consumption for the BMS, any BMS. >> >> On a different note, how does the LG or PW deal with dark start? If it >> shuts down due to low voltage, how do you get it started again? >> >> Jay >> >> >> >> >> >> >>> On Aug 4, 2017, at 4:26 PM, Dave Angelini Offgrid Solar >>> <offgridso...@sti.net> wrote: >>> >>> Jay, >>> >>> Without battery BMS data for Soc how does one know? I assume you need an >>> external shunt and an energy monitor? Any guidance from the >>> manufacturer? >>> >>> One of the nice things about the LG resu 10 is the data is all there and >>> it stays very accurate even on a week with never finishing charge to >>> 100%. >>> >>> >>> Dave Angelini Offgrid Solar >>> "we go where powerlines don't" >>> http://members.sti.net/offgridsolar/ >>> e-mail offgridso...@sti.net >>> text 209 813 0060 >> >> > ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
