Re: [RE-wrenches] Ferrites for EMP/solar flare protection?

What about Midnight SPDs? Todd On February 7, 2022 7:37:04 PM "Glenn Burt" wrote: I am not seeing how ferrites can stop EMP. The frequencies involved will affect diode junction level electronics. Ferrites may lessen the induced surge picked up by the conductors between the array and

Re: [RE-wrenches] GVFX3524 fan replacement

has anyone successfully done this without removing the inverter from the wall? todd On Sunday, February 14, 2021 6:26pm, "Foxfire Energy" said: Fan replacement is easier than boards Sent from my iPhone On Feb 14, 2021, at 9:00 PM, John Blittersdorf wrote: Hi Ron, Yes it is

Re: [RE-wrenches] Outback VFX upgrade question

"But the transformers are dedicated to the dc voltage and are not interchangeable between the 12, 24, and 48 volt inverters. The turn ratios are different." This is valuable information Lones... thank you for stepping in and clarifying this. Todd On Monday, March 9, 2020 10:08am,

Re: [RE-wrenches] Outback VFX upgrade question

I wrote to Allan off list, but will mention my suggestion here for others too. Outback still makes and sells the 3 circuit boards for the FX series of inverters (i just bought a spare set for our GVFX3648 for ~$800.00). Changing 2 of the 3 cards would make this into a 48 volt inverter. The

Re: [RE-wrenches] weird request

hi bruce, william miller has one he is going to send me. the most this unit ever sells is 1300 watts so the 2 kW limit isn't a problem, but because it is sealed the heat seems to kill off the internal fan in about 18 months... and it is a pain to replace. i thought outback would sell me

[RE-wrenches] weird request

i have a weird request... i have customer with a sealed GFX-2024 who has long complained about the internal fan's short (1.5 year) service life. i am thinking about changing this to a vented unit but would need to buy a different top half of the fx case... one with a hole for the fan's

Re: [RE-wrenches] Extending Enphase WiFi Range

i run my wifi router through this high gain panel antenna around 1/8 mile and get 4 bars of signal strength at my security camera. wireless internet is high frequency, so needs a clear path. this means removing tree branches and other obstructions; todd [

Re: [RE-wrenches] control or AC board

thanks for the advice ray... this is easily 10 years old. and while this is off the wall it will get a new internal fan and transformer temp sensor (that failed 2 years ago). i will look at the ac board relays when it is open too. todd On Monday, October 28, 2019 5:12pm, "Ray" said:

Re: [RE-wrenches] control or AC board

thanks for the reply jerry, nope, no changes... the first thing i did was to swap mates and saw the same readings. outback customer support said they thought it was the control board (because ac boards rarely fail), so i will do that tomorrow... but thought some wrences might have seen this

[RE-wrenches] control or AC board

wrenches, i have a GVFX3648 that is acting weird, rather then the mate normally showing: AC <-> DC which shows the inverter's total power processing, minus "AC load" equals "Selling" now the AC <-> DC shows nothing and "AC load" = "Selling" are identical (both track the same level of

Re: [RE-wrenches] Off Grid Washing Machine

ahem... i need to correct this with my personal experience. perhaps this is an exception, but my 24 year old sunfrost RF-12 is still going strong, 100% problem free... and it gets better efficiency than advertised: it uses 390 watt hours/ day = 142 kWh/year while solar pv is less expensive

Re: [RE-wrenches] Snow-frame damage

Michael and I have noticed this kind of damage tends to be more common on shallow angled roofs. Less than 6/12 is for sure designed to fail.   todd On Monday, August 26, 2019 2:46pm, "Michael Morningstar" said: Todd Cory and I have seen this many times. Around here, I won’t let the bottom edge

Re: [RE-wrenches] Pass-through state Dual FXR system

what is the battery voltage when trying to charge? maybe the BMS says they don't need any charging? todd On Saturday, August 3, 2019 2:35pm, "Mac Lewis" said: Hi Wrenches, I've got an issue that I'm remotely trying to troubleshoot but I must be missing something. Specs: Off-grid Dual

Re: [RE-wrenches] Hydro system

isn't there a formula like head in feet X gpm divided by 10 = approximate wattage? todd On Wednesday, July 10, 2019 7:10pm, "Jerry Shafer" said: You need head (pressure) and GPM, clean degree free, no silt, a catch basin to stall the water, big pipe long run, try to keep the

Re: [RE-wrenches] Trace SW4024 not selling.

and the yellow "line tie" led should be on. todd On Sunday, November 11, 2018 9:30pm, "Ray" said: I'm sure you did this, but did you set menu 9 (Inverter Setup) - Grid Usage to "SELL" ? Its a whole separate menu heading than "Battery Selling". That was always a bit of a pain to

Re: [RE-wrenches] Conduit Bending

On Friday, November 2, 2018 12:40pm, "Michael Morningstar" said: William, When one is doing a lot of bending of rigid conduit, where the finished length of pipe needs to be determined, after all bends are made, and threading happens first due to bends interfering with the threading

Re: [RE-wrenches] EMP and PV modules

inverters and charge controllers are another story. todd On Monday, June 18, 2018 10:10am, "Jerry Shafer" said: Wrenches Consider distance first EMP's may damage the baypass diodes but per the testing we have submitted to the military there was no damage to the cells modules Jerry

Re: [RE-wrenches] Li+ Systems Puerto Rico

" I am looking forward to the migration away from Lead Acid in the years ahead! " i gotta reply (off list) to this. as i have said before, i LOVE my flooded lead calcium wet cells. no, they aren't sexy li-ons, but they are proven technology for my grid-tied with battery backup application.

Re: [RE-wrenches] Solar over a pool - what must I pay attention to?"

increased corrosion from chlorine gas would likely be an issue too. todd On Wednesday, June 21, 2017 7:53pm, "Daniel Duffield" said: > Our go to 3M all weather pressure sensitive adhesive tape (double sided) a > product > called VHB and it's performance has

Re: [RE-wrenches] Ring Connectors

this might be unnecessary/ old school, but after i crimp i solder too (oxidation happens). todd On Monday, November 14, 2016 1:16pm, "Ray Walters" said: Here's the lug you would use for the inverter and batteries [

[RE-wrenches] schematics (was Re: Issue with DR1512 and oven)

while we are seeking schematics, id love one for the array technology tracker's control circuit. im pretty good with a soldering iron and could probably bench repair these for my old customers... probably doable w/o the schematic, but much easier with. thanks, todd mount shasta energy

[RE-wrenches] FW: RE: home trackers

wrenches, i did some follow-up with array technology regarding the sales and service of home scale trackers. the good news is these services are still available (see the forwarded message below). todd mount shasta energy services On Monday, September

Re: [RE-wrenches] Troubleshooting Stumper - Homerun Interference in Conduit/Inverter Turning Off/On Rapidly

im not sure why i am even suggesting this, but have you tried twisting the separate string's pairs before running them through the conduit? todd On Wednesday, September 7, 2016 6:55pm, "Matt Partymiller" said: > Thanks for all the questions and

Re: [RE-wrenches] Dependable kWh meters

i have bought from these folks and never had any problems. todd [ http://www.visionmetering.com/refurbished-electric-meters/ ]( http://www.visionmetering.com/refurbished-electric-meters/ ) On Sunday, August 21, 2016 2:13pm, "Drake" said: Hello

Re: [RE-wrenches] Winter Battery Maintenance

i built a system for a friend's seasonal (summer) off-grid residence in alaska. my instructions were simple: leave the pv input & cc output breakers "on" and the load breakers (inverter, dc sunfrost etc) "off". there was never a problem with winter freezing (even at -40f) until one year

Re: [RE-wrenches] Battery corrosion issue

whoops, was that a flag terminal? i looked at it wrong and thought it was a post terminal.   todd     On Wednesday, January 20, 2016 2:01pm, toddc...@finestplanet.com said: On Wednesday, January 20, 2016 1:53pm, "Kristopher Schmid" said: Greetings, Do any of you

Re: [RE-wrenches] Battery corrosion issue

On Wednesday, January 20, 2016 1:53pm, "Kristopher Schmid" said: Greetings, Do any of you battery gurus have a suggestion for a method of removing a bolt remnant that is corroded into a flag terminal.  Both sides snapped off flush with the flag.  I was thinking try to

[RE-wrenches] fire extinguishers

i am curious if any other wrenches install or recommend fire extinguishers in the equipment room for their installations, particularly for battery based systems. if so, what would be the best kind? dry chemical extinguishers make a hell of a mess. c02 units might be better? thanks, todd

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

as i understand it agm batteries are lead calcium. my personal experience has shown me that lead calcium is THE battery for ups systems. to reiterate previous emails about this: i have two grid tied systems here at home, both with battery backup (outback gvfx series) inverters. one has 1986

Re: [RE-wrenches] Flat roof in snow country - snow removal

except, "let it melt" on shallow angle roof mounts often yields this:   todd         On Wednesday, December 9, 2015 1:48pm, "Benn Kilburn" said: Dana, SESA (Solar Energy Society of Alberta) has been providing a great service to anyone interested in Solar Energy for many

Re: [RE-wrenches] Flat roof in snow country - snow removal

benn,   yes, this has happened to me on two sites (until i learned this type of mount does not work). one had mitsubishi modules and another evergreen modules. other colleagues here have had these painful "learning opportunities" too. both of these jobs were for customers who insisted on roof,

Re: [RE-wrenches] Inverter back feed liability

worst case scenario, a battery based inverter system trying to power the grid would immediately shutdown on overload as the "infinite load" of the grid would look like a dead short. also, all utility workers treat lines as "live" and routinely short out feeders before working on them... so

Re: [RE-wrenches] Rolls batteries

i have a set of their fc420's flooded, lead calcium... which is (imo) the perfect battery for grid tie with battery backup. i add water every other year, and equalize every 6 months. these are from 2008 and still going strong. another system i have has a 1986 vintage set (made by "globe

Re: [RE-wrenches] remember the pirate solar inverter?

afaik the first example of "AC coupling" was when one of these "trace microsines" was plugged into the off grid system (sw4024?) at richard perez's home back in ~1995? todd On Thursday, September 17, 2015 4:54pm, "b...@midnitesolar.com" said: > > Yep. The

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

i have had this happen, but only with one very elderly customer who didnt know what he was doing. he is 93 now, and has wisely hired a neighbor to maintain his system. having people press buttons who dont understand their function or correct settings is a recipe for problems. a ruined

Re: [RE-wrenches] Solaredge Storedge

sadly, all we have left is hopium On Monday, June 29, 2015 12:36pm, Kirk Herander k...@vtsolar.com said: Here’s the reply I just got back from Solaredge: “As this stands ATM Tesla has only announced the product, not finished developing it. As Tesla finalizes it the details will

[RE-wrenches] ConnectDER

wow, engenius. thanks for posting this. [ http://connectder.com/products ]( http://connectder.com/products ) todd On Monday, May 25, 2015 4:48pm, John Blittersdorf john.blittersd...@gmail.com said: Bill, One clean way to do it would be to use a ConnectDER, but the max input is

Re: [RE-wrenches] Lightning Strike Fries Array

but under a surge like a lightning strike wouldn't the diodes open rather than short? i always considered the pv's to be the least likely thing to be damaged from lightning and inverters and charge controllers (electronics) to be the most vulnerable. what in a pv would fail? an intercell

Re: [RE-wrenches] Array easily adjustable from 30 to 90 degrees

and if you do, please report back to the list with your experiences with them as pole mounts are mostly what i do. todd On Wednesday, May 20, 2015 3:16pm, Mac Lewis maclew...@gmail.com said: Hi Richard, A relatively new pole mount racking manufacturer called MT Solar has a pole mount

Re: [RE-wrenches] Tesla Powerwall battery paired with solar

this is more cornucopian bullshit... trying to avoid finite planet realities... like the solar roadway nonsense that was circulating ~6 months ago. the sad part is so few people understand that. todd On Saturday, May 2, 2015 4:25pm, "Dan Fink" danbo...@gmail.com said: UN-fortunately I predict

Re: [RE-wrenches] Freeze protection Seasonal well

drill a tiny hole in the delivery line at the top of the casing, so when the water is not pumping it will empty into the well... yes, some will leak when the pump is running but the only other non-automatic option is a seasonal drain valve. todd On Wednesday, April 8, 2015 7:47pm, Mac

Re: [RE-wrenches] Tilt Racking vs. Roof Mount for Shedding snow

two words... "pole mounts" todd On Friday, March 27, 2015 10:11am, "Kristopher Schmid" sol...@legacysolar.com said: Ignoring the effect of roofing material friction and tilt angle, i would surmise that the array being "open-backed" would reduce heat build up and actually decrease the snow

Re: [RE-wrenches] Whisper Controller Conversion

my old whisper controller has 3, full wave bridge rectifiers (with capacitors in parallel) connected to the wild, 3 phase ac input... and a 4 way light switch used to short out the three wild ac legs for the brake. should be easy to build one. todd On Friday, February 6, 2015

Re: [RE-wrenches] Schneider 6048 power output fluctuating widely

im not sure how the "brand-x" inverters work, but my home system's gvfx3648 suffers from high line voltage, where often when selling at max, the line voltage at the inverter will creep up to the 130 vac limit. when this happens, the inverter doesn'tcycle off and on as suggestedbelow, but it

Re: [RE-wrenches] Programmable Battery Charger

the 2:1 transformer also offers ac isolation. im not so sure id want the hot line of 120vac, via a diode, on the dc part of a system. this configuration (known as the DT Kludge) was a common (and expensive) workaround for outback fx series inverters which unfortunately only had one ac input.

Re: [RE-wrenches] Diode Failure

try digikey or mouser electronics todd On Monday, October 20, 2014 1:51pm, Corey Shalanski cshalan...@joule-energy.com said: Wrenches, Since my previous post (see below) we have recovered the faulty modules and are now looking to replace the diodes in order to make them functional

Re: [RE-wrenches] Grundfos SQFlex

If you are not going to be using a PV-direct arrangement, there is not much advantage in using the Flex pumps. except efficiency. i have two wells at home and the grundfos sqflex pumps 50' of additional head at the same flow rate, using 30% less energy as compared to the standard, 3/4 hp

Re: [RE-wrenches] Quantifying power quality

perhaps i am not understanding the set-up, but why feed a ups with a ups? doesnt the sunny island already provide ups capabilities for the loads connected to it? todd On Sunday, October 12, 2014 7:40am, Tump t...@swnl.net said: Thats the best fix I've heard yet! Document then DUMP

Re: [RE-wrenches] Metering

this is where i get mine:http://www.visionmetering.com/products/refurbished-electric-meters/ On Monday, September 29, 2014 7:12am, "Christopher Warfel" cwar...@entech-engineering.com said: Bill, The refurbished utility meter is the lowest cost option that meets the requirements of accuracy for

Re: [RE-wrenches] wood gasification to grid

i saw a commercial unit doing this here in mountshasta about 12 years ago. the gas (from gasified wood) was fed into a ford engine, which turned a dc generator charging a small buffer bank of batteries. a standard trace sw4024 did the selling to the grid. the grid interface was the easy part.

Re: [RE-wrenches] LiFePo4

perhaps i'm just an old school old fart, but i still think flooded, lead calcium cells are the best solution for battery back-up grid ties. i have a set from 1986, replaced when they ended their 20 year service life from our local hydroelectric plant... still going strong. i am also finding

Re: [RE-wrenches] Fan Controller

i have the same thing in my greenhouse... on a 24 volt dc system, i wired in a switch to change my two fans from parallel (noisy and excessive air movement) to series. i run them in series 99% of the time... plenty of air, less noise and long life on the brushes. (of course this is only an

Re: [RE-wrenches] GT with batteries in Calif.

In any case, a 10 kW battery system, will probably exceed most grid connected battery systems, and the whole issue is moot. shouldnt battery capacity be in kWh? todd On Wednesday, July 2, 2014 5:00pm, Christopher Warfel cwar...@entech-engineering.com said: I am not familiar with

Re: [RE-wrenches] AC Coupled + CC Grid Feed Input

here is the direct link: http://enphase.com/global/files/Enphase_Application-Note_AC-Coupled-Battery-Based-Systems.pdf On Thursday, May 29, 2014 10:21am, Nick Soleil nsol...@enphaseenergy.com said: Hi Drake, I'm happy to discuss the ins-and-outs of this with you by phone. My

Re: [RE-wrenches] Lithium ion

not trying to be dumb here, but what's the attraction to lithium ion batteries? todd On Thursday, February 27, 2014 3:44pm, Larry Crutcher, Starlight Solar Power Systems la...@starlightsolar.com said: Jay, I'm an authorized dealer of GBS systems and we stock and sell them here in

Re: [RE-wrenches] AC Back feed from Radian.

to further complicate things, i have seen regulator oscillation problems with 2 in series. todd On Monday, February 17, 2014 2:30pm, Ray Walters r...@solarray.com said: Alot of these generator setups need 2 regulators, so usually the regular one stays at the tank, size the

Re: [RE-wrenches] Outback Chargers

this is good advice, but beware: if you set the time too low, the inverter will never go to sleep. this is an issue with grid tie units where you do not want the inverter wasting power, running all night long. todd On Tuesday, February 11, 2014 7:03am, Doug Wells

Re: [RE-wrenches] Outback Chargers

i would love to see a spectrum analyzer's view of the fx's harmonics. does anyone have this available? interesting (and sad) how silent outback is on this list now. todd On Monday, February 10, 2014 9:37pm, Exeltech exelt...@yahoo.com said: Bruce, The capacitors may or may not

Re: [RE-wrenches] Flickering LED lights on and Outback Dual 7248VFX system

the only ones i have on a dimmer are in the bathroom and they flicker. being we are grid tied (GVFX-3648) and the grid is up, i suspect this is because of a bad dimmer/lamp combo. anyone find the RFI from led lamps a problem? i have to shut all mine off when using the 2 meter ham rig. todd

Re: [RE-wrenches] On demand WH

i remember hearing there was one brand which had a tiny hydro generator, operated by the flowing water, which was used to light the burner... yet, no one mentioned them? todd On Tuesday, October 1, 2013 5:48am, Bill Loesch solar1onl...@charter.net said: Hi Dick, Following

Re: [RE-wrenches] Energy usage for an electric car

whoops... i think so. thanks for the correction! todd On Friday, September 27, 2013 4:32pm, August Goers aug...@luminalt.com said: Here's a good place to go to find mileage: [http://www.fueleconomy.gov/feg/Find.do?action=sbsid=32557]

Re: [RE-wrenches] Energy usage for an electric car

a good guesstimate is 3 to 4 kWh/mile todd On Friday, September 27, 2013 3:05pm, Ray Walters r...@solarray.com said: We did a charging station for a Chevy Volt earlier this year. We actually ran the charger for about a week to come up with the design, based on their

Re: [RE-wrenches] Utilities see battery bank as parasitic load?

As SCE wrote in a July memo for solar and storage contractors ([https://www.sce.com/wps/wcm/connect/7bfb9fcc-b277-4646-9ac2-7700e03914bf/Battery_Backed_Storage_NEM_Eligibility.pdf?MOD=AJPERES] PDF), “if a renewable generator is modified so that the battery storage system is integrated into the

Re: [RE-wrenches] cool fan

thanks for the ideas jay! the fan comes on and off with the aux output led on the board where the in/out ac wires connect, so i do not believe this is an issue with the fan. as i mentioned below: when i set the aux control from 'auto' to 'on' the fan comes on and stays on... well,

[RE-wrenches] cool fan

wrenches... im having a vexing problem with an outback system and cannot seem to get any help from outback... so, im posting this here in hopes some wrench knows more about the 'cool fan' option than i do. this is a sealed gtfx2524 system... so it has the 'turbo fan' connected to the

Re: [RE-wrenches] PV Assist

off-grid systems where the loads are enormous, i realize this is not popular now in these days of solar is so cheap, but i will not work for people who wont conserve or be efficient. as we all know, pv contains lots of embedded energy and to my thinking... having it power waste is simply

Re: [RE-wrenches] PV Assist

If the customer wants a mega system and is willing to pay for it, why is it our business to judge them? hi ray, is it judging them? or simply saying: i do this work because i believe in trying to make a more sustainable world... and i will not enable waste. i do not care what these

Re: [RE-wrenches] PV Assist

so sorry list members, this was supposed to be off list. todd On Friday, August 16, 2013 8:51pm, toddc...@finestplanet.com said: If the customer wants a mega system and is willing to pay for it, why is it our business to judge them? hi ray, is it judging them? or simply saying:

Re: [RE-wrenches] Trojan L-16s

inefficient? they are better then lead antimony, but are considered 'shallow cycle', so i never take them down more than 50%. todd On Thursday, July 18, 2013 5:44am, Drake drake.chamber...@redwoodalliance.org said: Are they too inefficient for off grid? Drake At 05:53 PM

Re: [RE-wrenches] Trojan L-16s

for standby (bbgt) systems, please consider wet cell lead calcium cells. i have a 23 year old set still going strong. lead antimony will go 12 years... if you are lucky! todd On Wednesday, July 17, 2013 2:06pm, Drake drake.chamber...@redwoodalliance.org said: snip They have been a

Re: [RE-wrenches] Whisper Turbine Parts

im looking for a spare set of brushes (i assume you mean slip ring assembly) too. todd On Thursday, June 20, 2013 5:47pm, Mac Lewis maclew...@gmail.com said: Hello Wrenches, Does anyone know of a way to get Whisper 100 parts? Specifically, I need a full brush assembly. Please

Re: [RE-wrenches] would this work?

so it might be possible to power the pump array direct and also charge batteries through a hv mppt charge controller at the same time?? todd On Wednesday, June 5, 2013 8:18pm, jay peltz j...@asis.com said: Hi Todd As bob-0 and Larry have said And the sqflex is a mppt unit,

[RE-wrenches] would this work?

ok wrenches... here is a hair brained idea i came up with. i have this customer with the grundfos pump being powered, array direct by 10 astropower 75's in series... so around 170 vdc. what would happen if a hv mppt charge controller were paralleled with the panel output feeding the pump?

Re: [RE-wrenches] Solar Bridge AC Modules

my experience mirrors this too. this was my first ac module installation and other than dpw screwing up the mount, and the clunky datalogger/internet interface, the system has performed flawlessly. todd On Friday, May 31, 2013 6:28am, Dave Palumbo d...@independentpowerllc.com said:

Re: [RE-wrenches] used panel mount questions

good point dan... i wonder how frameless modules are intended to be mounted? todd On Thursday, May 30, 2013 4:00pm, Exeltech exelt...@yahoo.com said: I agree with Allen, and would like to add a related comment. Foam boards are thermally insulative in nature. If affixed to the PV

Re: [RE-wrenches] Dual Channel Inverters

We were hired just to install the system by a local firm that designed and sold the system and have had a bear of a time getting paid from anyone. this is why i never touch materials i do not sell, or install designs i did not do. todd On Tuesday, May 7, 2013 10:57pm, Jesse Dahl

[RE-wrenches] isofoton 150/S/24

wrenches,i have a customer who is wanting to add more modules to an existing array. he currently has isofoton 150/S/24s which are 41.25 X 48.25. does anyone have any possibilities on where to find 6 of these?thanks,todd Sent from Finest Planet WebMail.

Re: [RE-wrenches] 24V Rolls Charging Parameters?

this is probably a hair brained question, but has anyone ever tried paralleling the connections within the series strings? yes, more cables, but might this reduce the multiple parallel string unbalancing issues? todd On Monday, April 29, 2013 3:53pm, Wayne Irwin

Re: [RE-wrenches] Battery Back-up and Grid Tie

our power outages generally come from bad weather too... and of course when the weather is bad the pv does next to nothing. so for emergency backup, i recommend a generator. todd On Friday, April 26, 2013 10:33am, Bill Turberville billt...@ece-llc.com said: Not very often, and

Re: [RE-wrenches] Battery Back-up and Grid Tie

this is an incorrect myth. todd On Friday, April 26, 2013 12:30pm, Bill Turberville billt...@ece-llc.com said: Batteries actually do better if they are cycled than if they just sit there. He may actually extend his battery life. What kind of batteries is he using? From:

Re: [RE-wrenches] Battery Back-up and Grid Tie

my biggest issue with bbgt systems is the inefficiency. my 4.3 kW (stc) array typically sells 2.8 kW. 5 years of tracking dc input versus ac output shows the obfx inverter runs around 87% efficiency. add battery maintenance and the extra wiring to split off backed up loads and the economics

Re: [RE-wrenches] Outback wave form

please... and id love to see the harmonics too! thanks, todd On Tuesday, April 16, 2013 5:19pm, Chris Mason cometenergysyst...@gmail.com said: If it is useful to you, I can grab a waveform from my scope connected to my outback and post it. On Tue, Apr 16, 2013 at 3:27 PM, All

Re: [RE-wrenches] outback fx series inverters

the customer had some guy come in with 'a meter'. there was no mention of frequency or scale for the ranges listed below. and of course... the man with the meter also sells the 'filters' which help the problem he finds - sigh. here is the pertinent paragraph in her letter to me: As you know,

Re: [RE-wrenches] outback fx series inverters

i wish i knew what this guy was measuring... rfi, emi, emf, af? it could even be the pwm off the fm80. i dont think an inverter could change any emf to the house as that (gauss) is dependent on current flow. but if there is some rfi from the inverter/cc, riding the 60 hZ ac cables... that

Re: [RE-wrenches] Whisper Parts

in addition, i am looking for a spare blade set for the same unit (whisper 100). i heard there was a warehouse full of these parts when swwp went out of business... why they dont answer emails or phone messages is a mystery. i'd think they would want to sell what they can. if anyone has any

Re: [RE-wrenches] Whisper Parts

here is the link: [http://www.luminousrenewable.com/] http://www.luminousrenewable.com/ On Friday, April 5, 2013 2:00pm, Roy Butler r...@four-winds-energy.com said: The Whisper line, at least the 200 and 500, went to Luminous, a large battery manufacturer in India.

Re: [RE-wrenches] GSCM-mini with Honda EM5000SX

when i have seen this (battery post melting) in the past it was from a faulty (high resistance) battery connection... usually a poorly crimped lug. todd On Monday, March 25, 2013 9:15am, SunHarvest e...@harvesthesun.com said: Larry, Thanks for your reply. For some reason the

Re: [RE-wrenches] Remote Sunny boy Monitoring

i have set up wireless bridges for ip to remote locations and my experience with this has me leaning towards no dice william. these links run in the 2.3 gHz and up range which is line-of-sight only. trees will even attenuate the signal, so total blockage with the earth looks grim. have a

Re: [RE-wrenches] Snow loads

about 10 years ago - after a particularly heavy duty (more than usual) mount shasta snow storm, the county raised the snow load specifications here from 40#/sq ft to 60#/sq ft... which made all existing roofs substandard, so while they are grandfathered in, adding 2 to 3 #/sq ft for solar

Re: [RE-wrenches] generator suggestions

it sounds like my experience with this company about 10 years ago when i installed one of their 8 kW units as a grid back up for a customer. the battery charger was wired wrong out of the box... and they would not help me with troubleshooting... so i figured it out on my own. about 6 months

[RE-wrenches] generator suggestions

wrenches, i am working on a design for an off grid camp. they need a new generator as the one they have is a total pos. i am interested in suggestions for a commercial grade, 10 to 15 kW propane fueled unit. are kohler and onan still the best thing going or am i living in the past?

Re: [RE-wrenches] Best racking systems (was Awkward Mid-clamps jigs for installing or removing modules?)

or heavy snow... the supports are clear out on the ends. todd On Friday, January 18, 2013 5:09pm, Chris Daum ch...@oasismontana.com said: So how does the Zep stuff's testing do in winds in excess of 100 mph? I saw a nice demo and display of their goods in at the Anaheim 2009 SPI,

Re: [RE-wrenches] off grid PV connected to generator

one of my biggest gripes about the outback fx series is only one ac input... this was a major step backwards from its trace sw series predecessor. if someone is going to want battery back up on a grid tied system, they surely are going to want the ability to back that up with a generator. the

Re: [RE-wrenches] Fridge recommendations?

how about wisely locating the rf in a non-heated space to reduce/eliminate the winter run time? todd On Wednesday, January 9, 2013 12:22pm, Dave Palumbo d...@independentpowerllc.com said: Howie, I usually agree to the Kenmore/Sears recommendation but the closest Sears is coming

Re: [RE-wrenches] Heat Tape

i have done this on a particularly problematic installation here in our heavy mount shasta snow country - where the deep snow would freeze to ice on the module, and as it crept down the array, it would peel off the bottom edge of the module frame, usually resulting in broken glass/destroyed

Re: [RE-wrenches] RFI Interference with Ham radios

no experience with this, but led lights pretty much wipe out 2 meter operations. todd On Sunday, December 23, 2012 7:31am, Lee Bristol leebris...@standardsolar.com said: Mr Friends, Does anyone have experience with Enphase 215 inverters on a roof interfering with a Ham radio

Re: [RE-wrenches] DC, or not DC, Dat is Da question (Two Load Questions)

this brings up a probably off topic subject regarding efficiency. i have always considered efficiency and conservation to be job one... especially on off grid systems... but with modules so inexpensive... does this still make sense? for example, i have an off grid customer who i suggested get

Re: [RE-wrenches] Fix the Fluorescents: What about LED tubes for late 2012?

here in mount shasta woo-woo land, there are loads of folks who hate fluorescent lighting (never mind that they never notice fixtures with cfl's in them). they are all smiley though about leds (go figure). my experience with leds is the lumens/watt is still no greater than a good cfl/hid

Re: [RE-wrenches] Roof flashings on L-feet in high snow load conditions

I have never had good results with roof mounted pv in our heavy (mount shasta) snow area. the snow tends to creep down the glass and peel the bottom of the frame off the module... and then the glass breaks as it has no support in that area. so, around here... i do pole mounts WAY up in

Re: [RE-wrenches] Roof flashings on L-feet in high snow load conditions

the engineering called for 8 sch 80... and some super strong rebar in the base. i subbed out the mount so dont have all the details easily accessible... but if i recall, the hole is like 6' deep and 5 feet square. it seemed inadequate to me, but it was engineered, so i guess good to go. todd

  1   2   3   >