Re: [RE-wrenches] 60 Amp PV breaker tripping

The thread subject was "Classic 150 100 amp output breaker tripping?” It was on 10-26-15 from Daniel Tittmann. He never posted the solution but there are several suggestions. Larry Crutcher Starlight Solar Power Systems On Apr 19, 2016, at 9:04 AM, Kristopher Schmid

Re: [RE-wrenches] DC to DC converters

spec so if you can get your hands on the unit, apply a variable DC supply to discover the true operating range. You may be surprised that it functions just fine with your existing power system. Save cost and KISS. Larry Crutcher Starlight Solar Power Systems On Mar 28, 2016, at 12:44 PM

Re: [RE-wrenches] Rapid Shutdown

comes mounted in a UL listed assembly) Thanks, R.Ray Walters CTO, Solarray, Inc Nabcep Certified PV Installer, Licensed Master Electrician Solar Design Engineer 303 505-8760 On 3/15/2016 2:57 PM, Starlight Solar Power Systems wrote: > I thought this idea (attached) was a simple soluti

Re: [RE-wrenches] Rapid Shutdown

fault relay control. A simple SPST switch in series with the 12 volt Aux output will allow shutdown. Add a fire alarm output relay for auto-shutdown in case of fire. Seems like a simple, cost effective way to me. Any comments Ray, Pete, Bill? Larry Crutcher Starlight Solar Power Systems

Re: [RE-wrenches] Aquion Batteries

I too am interested in anyone that has installed these. I had some concerns back on Nov 10, 2014. Here is a copy/past from that conversation: Something does not add up to me. The cell has a voltage discharge curve way outside that of RE equipment, 1.75 Vpc down to 0.5Vpc. I can't see how this

Re: [RE-wrenches] Plastic washers

into the array in event of a near lightning strike. Also, if the washer is between the two metals, how will you isolate the bolt that puts them together from not touching the sides of the holes? Perhaps you need to look into non-conductive fasteners as well. Larry Crutcher Starlight Solar Power Systems

Re: [RE-wrenches] Plastic washers

One thing I have noticed is that many rack materials are a mixture of aluminum and other metals. I found out when trying to weld the material. It would be good to know just how dissimilar stainless is compared to the rack metal. Jay, I would ask them what good is the insulator if the bolt/screw

Re: [RE-wrenches] LiFePO4; WAS Availability of Powerwall Batteries

the price now. I like those customers. Thank you, Larry Crutcher Starlight Solar Power Systems On Jan 23, 2016, at 1:28 PM, Marco Mangelsdorf <ma...@pvthawaii.com> wrote: Aloha Larry, To take a step back…what’s the compelling value proposition from the homeowner’s perspective to

Re: [RE-wrenches] LiFePO4; WAS Availability of Powerwall Batteries

storage…lead, your years are numbered. Larry Crutcher Starlight Solar Power Systems On Jan 22, 2016, at 5:35 PM, August Goers <aug...@luminalt.com> wrote: Larry, To get back to your previous response to me – I’m fully onboard with the benefits of lithium batteries. For now, they see

Re: [RE-wrenches] LiFePO4; WAS Availability of Powerwall Batteries

ar to what we do except our LFMP battery package EMS and CPU is designed by the manufacturer exclusively for GBS batteries. Perhaps a better term would be LFP battery dealer or integrator. Larry Crutcher Starlight Solar Power Systems On Jan 22, 2016, at 12:30 PM, Allan Sindelar <al...@sind

Re: [RE-wrenches] Availability of Powerwall Batteries

temperatures. The same thing applies for our RV customers that only use them for a few months each year. Larry Crutcher Starlight Solar Power Systems On Jan 22, 2016, at 9:26 AM, August Goers <aug...@luminalt.com> wrote: ...I’m not convinced that any of the other lithium products are

Re: [RE-wrenches] battery-based inverter

. Larry Crutcher Starlight Solar Power Systems On Jan 15, 2016, at 3:37 PM, toddc...@finestplanet.com wrote: the old sw inverters had something called "generator support", where if the loads exceeded the generator's output, the inverter would forego charging and sync with,

Re: [RE-wrenches] Fwd: Refractometer reading has me stumped

://support.rollsbattery.com/support/solutions/articles/430-corrective-equalization-instructionsI recommend a long equalization process Larry Crutcher Starlight Solar Power Systems On Dec 21, 2015, at 10:16 AM, Allan Sindelar <al...@sindelarsolar.com> wrote: Wrenches, For years I have carried an

Re: [RE-wrenches] 4 ways to keep a battery for a long time

On Dec 17, 2015, at 11:55 AM, Ray Walters wrote: ...but as far as I can tell, every other storage chemistry has similar characteristics: lower capacity at low temps, a high temp limit, non-linear cycle life depending on DOD, Puekert's exponent relating capacity vs charge/

Re: [RE-wrenches] Module recommendation for a specific off grid situation

I have been trying to purchase Panasonic modules for years. Where do you get them? Thank you, Larry Crutcher Starlight Solar Power Systems On Dec 17, 2015, at 12:27 AM, Chris Worcester <ch...@solarwindworks.com> wrote: Hi Allan, Try the Panasonic 240’s Chris Worcester Solar Wind

Re: [RE-wrenches] HuP Conundrum

No hydrometer, no log book, many cells at different SG and probably no battery monitor = neglect, wasted resources and, as you said, unbelievably expensive consequence. I hope you can communicate to the customer that this was his fault and not the battery maker. Larry On Dec 17, 2015, at

Re: [RE-wrenches] 4 ways to keep a battery for a long time

building something like that? Larry Crutcher Starlight Solar Power Systems On Dec 16, 2015, at 6:44 PM, jay <jay.pe...@gmail.com> wrote: HI Luke, Without knowing what the charging parameters its really hard to know whats going on. And this false issue with life span is years really g

Re: [RE-wrenches] Outback customer service???

integration. I quite stocking and selling any Outback products due to poor customer service and receiving used products from them when I had brand new DOA products. So, yeah, quite odd. Larry Crutcher Starlight Solar Power Systems On Dec 15, 2015, at 6:20 PM, jay <jay.pe...@gmail.com>

Re: [RE-wrenches] Outback customer service???

I received a replacement FET board from Outback that I ordered for an out of warranty inverter. They sent me a used/refurbished board dated 2003. I was expecting a new part. Is this normal for Outback? Thank you, Larry Crutcher Starlight Solar Power Systems

Re: [RE-wrenches] Outback customer service???

of the professionals that are on this list. One person suggested to choose the product we sell from a company that provides the best customer support. That was well said. Larry Starlight Solar Power Systems On Dec 9, 2015, at 12:55 PM, Michael Welch <michael.we...@re-wrenches.org> wrote: Hi Wr

[RE-wrenches] Outback customer service???

Does anyone know how to reach Outback customer service? I have called, waited and left messages and emailed them with no response. Thank you, Larry ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change

Re: [RE-wrenches] Outback customer service???

e a message unless you can wait for a few weeks. jay > On Dec 8, 2015, at 8:46 AM, Starlight Solar Power Systems > <la...@starlightsolar.com <mailto:la...@starlightsolar.com>> wrote: > > Does anyone know how to reach Outback customer service? I have called, waited &

Re: [RE-wrenches] Panasonic PV modules, missing you

Works NABCEP Certified PV Installer Office 530-582-4503 Cell 530-448-9692 Fax 530-582-4603 www.solarwindworks.com ch...@solarwindworks.com From: RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Starlight Solar Power Systems Sent: Friday, November 27, 2015 12:47 PM

Re: [RE-wrenches] Sanyo NOW Panasonic warranty claim-Where to start?

I have been trying for a few years to buy Panasonic (Sanyo) modules again and don’t get reply from the many emails I have sent. I have an old number for Sanyo Warranty Support: 408-861-8404 Larry On Nov 27, 2015, at 12:08 PM, Bill Loesch wrote: Hi Folks, Anyone

[RE-wrenches] Panasonic PV modules, missing you

Has anyone been able to purchase Panasonic modules in the US in the last few years? If so, where? Thank you, Larry ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings:

Re: [RE-wrenches] Odd battery problem - very low SG in only one cell

Dan, Last week I had a 3+ year old Trojan L16H-AC with one dead middle cell, SG shows water. The bank has 8 batteries and the customer is diligent about maintenance and charging. I wish I knew why this happens but it seems over the last few years like there is a pattern with Trojan L16’s.

Re: [RE-wrenches] Odd battery problem - very low SG in only one cell

As someone notable once said "excrement occurs". Bill <FRS_working_logo, 50%.JPG> On 11/23/2015 6:42 AM, Starlight Solar Power Systems wrote: > Dan, > > Last week I had a 3+ year old Trojan L16H-AC with one dead middle cell, SG > shows water. The bank has 8

Re: [RE-wrenches] Inverter back feed liability

OMG!…I thought I was the only one that had to deal with those experts. My favorite was a fellow leaned over the counter and announced to me that he was retired from NASA. Well, guess I better pad my estimate by 25%. Good one, Hilton. On Nov 23, 2015, at 4:59 PM, Hilton Dier

Re: [RE-wrenches] Mixing battery sizes in the same bank

, preached and insisted “never mix battery sizes in the same bank”? Battery wrenches, has anyone ever done or seen this done? (Allan, I’m not even going to ask about your customer with five 6 volt batteries in a 24 volt bank) Larry Crutcher Starlight Solar Power Systems On Nov 20, 2015, at 4

[RE-wrenches] Mixing battery sizes in the same bank

Just when I thought I was becoming a battery guru, this came up: A customer asked me if he could purchase two different size 12 volt Lifeline (Concorde) AGM batteries and connect them in parallel. Of course I told him this was a bad idea and all his parallel batteries should be same make, age,

Re: [RE-wrenches] Classic 150 100 amp output breaker tripping?????

After the Magnum Inverter/charger samples incoming AC power, they have a slight delay before starting the charger. Then, they ramp up current slowly. Even so, how will any current from any other source pass through the breaker unless the Classic is presenting a load? I suppose something else

Re: [RE-wrenches] Classic 150 100 amp utput breaker tripping?????

that trips the breaker? To be sure, put a new 100A breaker in and wait for sunup. Larry Crutcher Starlight Solar Power Systems On Oct 28, 2015, at 3:04 PM, Daniel Tittmann <dan...@greenwired.com> wrote: An update on this issue: On my initial visit to diagnose this problem I changed t

Re: [RE-wrenches] Adding battery backup to Enphase

Hi Dan, I looked at the Ironedison website and it looks like they are offering the Balqon ESS LFP series as their Lithium Iron battery (https://ironedison.com/48-volt-lithium-battery-for-solar). If this is true, buyer beware…there are technical and delivery issues related to these Lithium

Re: [RE-wrenches] Generator backfeeding enphase?

I have a customer with a China Diesel 40kW generator that will sync up with 3 Fronius inverters and 17kW of PV's. A few years ago he had to run for a week like this. Each day the inverters would sync up, no problems. Larry Crutcher On Oct 20, 2015, at 4:16 PM, Tump wrote: I

Re: [RE-wrenches] AGS sensitive battery charger

Exactly! And fully programmable voltage, charge timers, equalization, etc. I’ve been begging Magnum Energy to do this. About 4 years ago they started telling me they were working on it. I guess they don’t realize how many are needed. I sell lots of Iota because I can tweak the voltage but

Re: [RE-wrenches] Hailstorm damage

Speaking of flat mounted modules, most of what we install are flat mounted on vehicles. The numbers since 2001 are well over 10,000 PV modules flat mounted. Not one customer has contacted me about a module damaged by hail. My personal RV was in a hail storm that did $22,000 damage to my home.

Re: [RE-wrenches] Hailstorm damage

Speaking of flat mounted modules, most of what we install are flat mounted on vehicles. The numbers since 2001 are well over 10,000 PV modules flat mounted. Not one customer has contacted me about a module damaged by hail. My personal RV was in a hail storm that did $22,000 damage to my home. The

Re: [RE-wrenches] Hailstorm damage

Hi Glenn, Most Warranty spell out their exemptions that include any damage for objects. I just glanced at the Sanyo warranty and found they even mention Golf Balls and hail stones! • Damage caused by abuse, neglect, vandalism, accident, animals or insects, or external stress, such

Re: [RE-wrenches] PV testing

Bill, In the shop I have two electronic loads that I use nearly every day with batteries and PV modules. One is a programmable 150W, 360V that can be set for constant power, current or voltage (like this: http://www.amazon.com/Programmable-Electronic-Load-360VDC-CSI3710A/dp/B00D7QGSV4). It’s

Re: [RE-wrenches] DC conduit with AC secondary?

I’m not sure of the code but if you do this, be sure to twist the DC wiring to reduce the possibility of common mode noise and inductive coupling from the parallel AC wire. Larry On Oct 5, 2015, at 8:45 AM, AE Solar wrote: Wrenchers, Anyone know of code

Re: [RE-wrenches] PV Tracker - Best available?

%. If there is no space available for more PV it makes sense if you must have more production. Larry Crutcher Starlight Solar Power Systems On Oct 3, 2015, at 9:49 AM, SunHarvest <e...@harvesthesun.com> wrote: Given 310# snow load in the Sierras, what are some suggestions for a superior pole-mounted tr

Re: [RE-wrenches] PV Tracker - Best available?

phone] > On Oct 3, 2015, at 12:04 PM, Starlight Solar Power Systems > <la...@starlightsolar.com> wrote: > > Hello Eric, > > With the low cost of PV solar modules, I would like to know why anyone would > choose to track the sun? It cost's much more and is a maintenance is

Re: [RE-wrenches] Five L16s in a 24V string?

Since multiple batteries failed ("the one that always fails"), did he buy one new battery each time and tie it to the old failing one? Or, did he start with a new bank and create the parallel at that time? Since he’s an “old timer” he may be mixing different age batteries in the bank. I see

Re: [RE-wrenches] Five L16s in a 24V string?

Took about a minute to draw with Pages on a Mac. On Oct 1, 2015, at 1:22 PM, Allan Sindelar wrote: ….Larry, nice drawing below. What did you use, as I need to learn it too? Allan Allan Sindelar al...@sindelarsolar.com

[RE-wrenches] Grid tie in Nicaragua

Has anyone done a grid tie system in Nicaragua? I would appreciate talking about equipment reliability and other difficulity due to utility power instability. Thank you, Larry Crutcher Starlight Solar Power Systems ___ List sponsored by Redwood

Re: [RE-wrenches] Rooftop DC disconnects

trip breaker is not easily accessible (i.e. on a two story house with a 6:12 roof pitch. Something to consider. Regards, Gary Willett PE Icarus Engineering On 9/24/15 7:26 PM, Starlight Solar Power Systems wrote: > William, Ray, > > I asked Midnite about using the Aux circuit for control for

Re: [RE-wrenches] Rooftop DC disconnects

William and Wrenches, I have pondered situations like this one and wonder the following: If a high voltage DC solenoid were placed at the PV array and the coil was controlled by an arc fault detector along with a means of manually disconnecting, would that not work to satisfy shut down

Re: [RE-wrenches] Rooftop DC disconnects

Ray, UL508 for sure but look here: http://gigavac.com/catalog/pp/hx.html Larry On Sep 24, 2015, at 11:03 AM, Ray Walters wrote: …. Is the Gigavac UL listed? R.Ray Walters CTO, Solarray, Inc Nabcep Certified PV Installer, Licensed Master Electrician Solar Design Engineer

Re: [RE-wrenches] Rooftop DC disconnects

that article. Is the Gigavac UL listed? R.Ray Walters CTO, Solarray, Inc Nabcep Certified PV Installer, Licensed Master Electrician Solar Design Engineer 303 505-8760 On 9/24/2015 10:45 AM, Starlight Solar Power Systems wrote: > William and Wrenches, > > I have pondered situations lik

Re: [RE-wrenches] Morningstar PWM

the battery not getting charged. Larry Crutcher Starlight Solar Power Systems On Sep 9, 2015, at 5:06 PM, Drake <drake.chamber...@redwoodalliance.org> wrote: Hello Wrenches, I have a Morningstar PWM 45 that doesn't drop out of absorb. It is set with dip switches to absorb at 29.2 V and

Re: [RE-wrenches] Fronius Warranty Problems

Peter, Fronius has some of the most ignorant people working for them. It took me over a year to receive payment for an inverter swap that they diagnosed as having failed. After I returned the old inverter they claimed nothing was wrong. Run from Fronius! Thank you, Larry On Sep 3, 2015,

Re: [RE-wrenches] Control board Kohler 14 RES

Magnum Energy inverters have no capability to send current to the grid (generator) through their inputs. Sounds like BS to me. What is this mystery board that blocks AC current one way? Larry On Aug 25, 2015, at 11:18 PM, Mac Lewis maclew...@gmail.com wrote: Hello wrenches, I've got an

Re: [RE-wrenches] AC Coupled with Generator

Ray, I’m curious about what you mean by not doing a 3 stage charge. While PV charging in coupled mode (off grid), the battery will reach your absorption set point. Is this triggering the GT inverters to shut off or does the battery inverter absorb timer run at all? I would think the absorb

Re: [RE-wrenches] Lithium Iron Phosphate

interface and software that communicates with chargers and control CPU’s to make the adjustments on the fly. Larry Crutcher Starlight Solar Power Systems On Aug 18, 2015, at 8:31 AM, Peter Parrish peter.parr...@calsolareng.com wrote: I too am interested in LiFeP batteries. I think we need

Re: [RE-wrenches] Lithium Iron Phosphate

to fully charge. Hopefully some RE equipment manufacturers will see this coming potential and design suitable chargers. Larry Crutcher Starlight Solar Power Systems On Aug 17, 2015, at 3:29 PM, Daniel Young dyo...@dovetailsolar.com wrote: Hello Wrenches, I’ve been trying to think through how I

Re: [RE-wrenches] Lithium Iron Phosphate

challenge for equipment makers but can be resolved by designing CAN interface and software that communicates with chargers and control CPU’s to make the adjustments on the fly. Larry Crutcher Starlight Solar Power Systems On Aug 18, 2015, at 8:31 AM, Peter Parrish peter.parr...@calsolareng.com

Re: [RE-wrenches] Using the North Facing Roof

on the north side. I can not see any benefit in AZ even at todays low prices. Now, if I were building in Quetzaltenango, Guatemala, that would be a different story. But then again, I would have to clean off the volcanic ash each morning. Larry Crutcher Starlight Solar Power Systems chart came from

Re: [RE-wrenches] DC conductor line loss numbers

. Larry Crutcher Starlight Solar Power Systems On Jul 22, 2015, at 10:37 AM, Jerry Shafer jerrysgarag...@gmail.com wrote: Wrenches Some time back there was discussion on the conductor size and efficiency rating requirement for long DC runs. What I am looking at is this, 400 feet of MCM 400 to keep

Re: [RE-wrenches] Trina Module Annual Degradation

, Kyocera, 13 years after the 1 Year Limited Warranty expired, is STILL replacing the KC120 and 80 Watt modules with a rebuilt unit and they are STILL paying us labor to replace them. What a company! Larry Crutcher Starlight Solar Power Systems On Jul 18, 2015, at 11:09 AM, b...@midnitesolar.com

Re: [RE-wrenches] Aquion Energy

Hi Mark, There was some discussion back in November 2014 on this list. They claim 100% DoD but I can’t see how you can use the full capacity of the battery due to the broad operating voltage. Larry Crutcher Starlight Solar Power Systems On Jul 16, 2015, at 5:20 AM, Mark Frye ma

Re: [RE-wrenches] Generac QT series

in the photos so I believe your problem is not as simple as the sine waveform. From the cost standpoint, I’de guess you have to try a different brand inverter first. However, since the problem only occurs with that particular generator, I would not trust it. Larry Crutcher Starlight Solar Power Systems

Re: [RE-wrenches] [SPAM] Re: Mate Drop and Charge Functions

of their new 100 amp charge controller, ME will have a complete solution through one remote. Larry Crutcher Starlight Solar Power Systems On Jul 12, 2015, at 4:37 PM, jay jay.pe...@gmail.com wrote: All the different remote controls have their pros/cons. However I find the web based videos from

Re: [RE-wrenches] SnapNrack - Anti-seize

You can use a thin sponge soaked anti-seize and just touch the threads to the sponge. Since it only takes a minute amount of lube to prevent galling, you can prep all your bolts in the shop and bag them. Zip lock the sponge for the next job. Larry Crutcher Starlight Solar Power Systems

Re: [RE-wrenches] Voltage Degradation with Uni-Solar laminate

Sorry...I meant to type 17.75V (71V). On Jun 1, 2015, at 11:21 AM, Starlight Solar Power Systems la...@starlightsolar.com wrote: Luke, For reference, we sold/installed many hundreds of Uni-Solar products since 2002. I have never seen anywhere near that much Voc loss. Since the PVL-68 has

Re: [RE-wrenches] Voltage Degradation with Uni-Solar laminate

Luke, For reference, we sold/installed many hundreds of Uni-Solar products since 2002. I have never seen anywhere near that much Voc loss. Since the PVL-68 has an open circuit of 23.1V (92.4V) but you only see 14.2V (71V), a loss of 25%, I do not believe degradation is the culprit even at 15

[RE-wrenches] Finally, a simple battery backup switch/controller

Starlight Solar Power Systems ___ 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

Re: [RE-wrenches] Passive Battery Venting

I too saw that these were AGMS. The only time excess H venting happens is with severe over voltage for a period of time. How often will this happen? Have any battery wrenches experienced high volume venting of AGM’s? Our experience: There is no NEC requirements for mobile installations. We have

Re: [RE-wrenches] warranty exclusions

Rebecca, This reminds me of a Sanyo grid tie system we quoted years ago to be installed in Yuma, AZ. After receiving the PV modules (11kW), I discovered that the warranty was void if the average temperature was above 104° F (40C). That means “no warranty” in Yuma and much of the desert SW.

Re: [RE-wrenches] magnum question

Jay, Perhaps asking the question here. I have hundreds of Magnum inverter installations, perhaps I or others can help. Larry On Oct 23, 2014, at 5:44 PM, jay peltz j...@asis.com wrote: HI All, Does anyone have a person at Magnum in engineering or higher up than tech support. I've got a

Re: [RE-wrenches] SMA DC Disconnect Switch failure

marco, SMA has agreed to replace it. Have you had any trouble with the replacement disco(s)? On Oct 16, 2014, at 2:24 PM, Marco Mangelsdorf ma...@pvthawaii.com wrote: Yes, I’ve had a number fail over the years, especially the no-longer-made DC/AC combo switches. I’d get a warranty

Re: [RE-wrenches] SWRC for older Power Series inverter

Hi Chris, We still have stock on the RC6, RC7 and RC7GS that came before the RC/GS. These all work with the old RV and Legend series inverters. I will be back in Az in about 1 week if you still need one. Larry On Oct 6, 2014, at 9:37 AM, Chris Daum ch...@oasismontana.com wrote: Dear people:

Re: [RE-wrenches] SWRC for older Power Series inverter

After re-reading it looks like you’re not wanting the RC remotes but rather the remote option for the PS series. So, as Roseanne Roseannadanna would say…..never mind. On Oct 6, 2014, at 5:20 PM, Starlight Solar Power Systems la...@starlightsolar.com wrote: Hi Chris, We still have stock

Re: [RE-wrenches] LiFePo4

William, This is one reason I choose to avoid the black box approach to Li-ion batteries for our customers. There are several companies offering enclosed battery/controls like the OES. Their approach does not match well to the off-grid and mobile markets that I serve. Since most LFP

Re: [RE-wrenches] LiFePo4

a smaller lead acid battery in parallel with the LiFePo bank so the LiFePo contains most of the energy storage, but the LA can supply the surges and low impedance source voltage. boB On 9/18/2014 8:53 AM, Starlight Solar Power Systems wrote: William, This is one reason I choose to avoid

Re: [RE-wrenches] LiFePo4

a compromise. boB On 9/18/2014 10:55 AM, Starlight Solar Power Systems wrote: boB, When charging a LFP battery, the charge terminates when absorb voltage is reached unless you have an enormous charger in which case you will need to terminate based on AH returned. You would also need to isolate

Re: [RE-wrenches] LiFePo4

off. Couldn't be easier. Now we're just talking price compared to a tried and true LA battery ? Some may remember Boeing's little problem recently though and that may turn them off. boB On 9/18/2014 11:33 AM, Starlight Solar Power Systems wrote: Truth is there is likely more than enough

Re: [RE-wrenches] LiFePo4

William, What did you find at the site? I did not see any attachment or link in your email so let me know what you are working on. Do you have any questions about the batteries/system? Larry On Sep 16, 2014, at 12:31 AM, William Miller will...@millersolar.com wrote: Friends: Here are

Re: [RE-wrenches] LiFePo4

Mac, Li-ion batteries are connected the same as any other deep cycle, positive and negative terminals. The Battery management is done actively on each cell. The brand that we sell has a CPU that receives serial data from the string of “sense” boards that are monitoring temperature and voltage

Re: [RE-wrenches] LiFePo4

ERROR….I meant to say ….reach 3.55 volts per cell. On Sep 16, 2014, at 9:43 AM, Larry Crutcher, Starlight Solar Power Systems la...@starlightsolar.com wrote: Mac, Li-ion batteries are connected the same as any other deep cycle, positive and negative terminals. The Battery management is done

Re: [RE-wrenches] LiFePo4

Jarmo, I must say I disagree with most of what you have said. In the EV DIY industry, there are a growing number of conversions using LFP battery banks without any BMS or EMS at all. These pioneers are risking there multi-thousand banks because they have learned something about these cells.

Re: [RE-wrenches] LiFePo4

Hi William, I have designed and installed a few lithium iron battery banks. We now stock the GBS line and plan to add additional brands soon. My experience is very positive toward the performance and future of LFP and LFMP as a replacement to lead acid for off grid, stand-by and mobile use. As

Re: [RE-wrenches] Grid-tie inverter for wind generator

Chris, I would not touch that with a..….20 foot pole. It will never work right and he will assign you the blame when he sees his electric bill go down by $1 per month. Larry On Sep 5, 2014, at 9:42 AM, Chris Daum ch...@oasismontana.com wrote: One killowatt, and three wire. He's been using

Re: [RE-wrenches] Sunpower off grid?

Crutcher Starlight Solar Power Systems On Aug 20, 2014, at 10:46 PM, Ray Walters r...@solarray.com wrote: Greetings fellow Wrenches; I have a customer that just purchased some Sunpower E20 -435 modules somehow from Ebay, and wants me to design a backup power system for him. This system would

Re: [RE-wrenches] WorkTruck Inverter Suggestions

Hi Bill, I’m probably stating the obvious but we always install mobile inverters closest to the battery due to the high loss at 12 volts, then run AC to the point of use. Larry On Aug 7, 2014, at 7:07 AM, Bill Loesch solar1onl...@charter.net wrote: Gentlemen: Does anyone have any

Re: [RE-wrenches] Lithium Ion Battery....was 2v metal cased cells

$360/kWh is a good price. Can you share the brand with us or email me off list? We sell Li-ion (LFMP) at our store but I include a CPU, protection solenoids, battery capacity meter and video display. My dealer cost is quite a bit higher than you were quoted. Larry On Jul 12, 2014, at 11:42

Re: [RE-wrenches] FullRiver Battery

is our best selling battery. Larry Crutcher Starlight Solar Power Systems On Jul 2, 2014, at 3:58 PM, RE Ellison reelli...@gmail.com wrote: What has been everybody’s experience with Full River Batteries? Bob ___ List sponsored by Redwood Alliance

Re: [RE-wrenches] Magnum and Pumps

Hi Drake, If the Enphase are online, up to 60 amps (30A @ 240V) can be transferred through the Magnum inverter to loads. The inverter is not providing power to loads at that time. If the Enphase go offline, the Magnum takes over using power from the battery. If the load is greater than your

Re: [RE-wrenches] Magnum and Pumps

Yes Drake, I stand corrected, I was picturing the micro inverters feeding the input rather than coupling the output of the Magnum. To your original question, I think you would have to be consuming more power than the PV array alone can provide before the Magnum voltage would drop with the pump

Re: [RE-wrenches] Magnum and Pumps

surge current. I would recommend using a stacked pair of 4448’s as a minimum if you have other house loads. Larry Crutcher Starlight Solar Power Systems On Jul 2, 2014, at 8:17 AM, Drake drake.chamber...@redwoodalliance.org wrote: Hello Wrenches, We are hoping to use a Magnum PAE 4448 to back

Re: [RE-wrenches] Magnum and Pumps

Hi Roy, The FullRiver DC400-6 AGM battery can issue 2000 amps for 5 seconds so he should be fine. Larry On Jul 2, 2014, at 12:35 PM, Roy Butler r...@four-winds-energy.com wrote: I haven't seen anyone mention the battery bank. If I understand correctly, there's a single string of sealed L16

[RE-wrenches] Trace SW4024 LCD display problem

I am looking for someone that can repair the SW4024 LCD control. The display is getting to dim to view. Thank you, Larry ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address

Re: [RE-wrenches] Lightning Damage - Need Replacements (Correction)

Hi Dan, You mentioned that “his grounds didn't work”. Actually, they worked, just in an undesirable way. One thing to look at is how or whether the house ground system was bonded to the tower ground. If they were not properly bonded, and with poor soil condition, the potential difference

Re: [RE-wrenches] Kyocera 120's low voltage

started. We keep the remanufactured units in stock at our store because we see so many of these. Kyocera will also pay labor to replace them. Thank you, Larry Crutcher Starlight Solar Power Systems On Jun 11, 2014, at 4:47 PM, Dave d...@independentpowerllc.com wrote: Wrenches, I

Re: [RE-wrenches] high efficiency modules in U.S.

marco, We used to stock Panasonic. I first heard about this in February when I tried to reorder inventory. I was told by a distributor that Panasonic increased the minimum order. Every one I contacted had no intention of ordering them due to this new minimum. In contacting Panasonic back in

Re: [RE-wrenches] high efficiency modules in U.S.

Hey Kirk, We have sold sanyo then Panasonic modules for over a decade. Not only were they highly efficient, they were the last truly high performance modules in the US. I have exhausted my search for them, only 3 left in stock. Panasonic will not return my phone calls or emails. There are

Re: [RE-wrenches] Wrong title on my inquiry ... Charge Controller Question!

Solar Power Systems On Apr 22, 2014, at 12:27 PM, Karl Jaeger kjae...@lightwavesolar.com wrote: From: Karl Jaeger Sent: Tuesday, April 22, 2014 2:28 PM To: RE-wrenches@lists.re-wrenches.org Subject: RE: Fault Current Greetings Wrenches, We’re considering a new charge controller

Re: [RE-wrenches] EMP question

Good answer Wayne…how strong AND how far away. I'm sure the inverse-square law apples here but if you don't know the initial power and distance, it does not matter much anyway. Now, for a hilarious interjection, there is a customer in our showroom at this moment asking about PV solar in case

Re: [RE-wrenches] Solar World shattered module

Hi David, We have thousands of PV modules installed mostly on RV's. An RV roof can be a very abusive environment with turbulence, flying debris, driving under limbs, heavy vibrations and more. I have not had any glass breakage that could not be accounted for, i.e, breaking for unknown reason.

Re: [RE-wrenches] AC coupling with Fronius

Mac, I have a customer with 17kW on 3 Fronius inverters. He connected a cheap 40kW china diesel generator during a week long power outrage. I was amazed when he told me they sync'd up with no problems. Larry On Apr 16, 2014, at 1:44 PM, Mac Lewis maclew...@gmail.com wrote: Hello wrenches,

Re: [RE-wrenches] Zomeworks Cool Cell

Sorry for reposting but perhaps my original post was missed. Has anyone used the Zomeworks Cool Cells? http://www.zomeworks.com/battery-electronic-enclosures/cool-cell/ Thank you, Larry Crutcher Starlight Solar Power Systems On Mar 28, 2014, at 3:14 PM, Larry Crutcher, Starlight Solar

<    1   2   3   4   5   >