[RE-wrenches] Xantrex XW or Outback with very small temporary battery bank

CCs in a year's time and then install a nice new 48v deep cycle 800 ah batt bank. Has anyone ever tried to connect a too-small battery bank to a battery-based / grid-tied inverter, and had the inverter not work because the bank was too small? (If there are old th

[RE-wrenches] reliable 12vdc to 5vdc converters for USB charging

se in simple DC-only PV systems for central america, and avoid involving truckstop inverters [going from DC to AC back to DC] to charge cell phones/ mp3 players/ etc. thanks Jim MacDonald ___ List sponsored by Home Power magazine List Address: RE-wre

[RE-wrenches] 110Vac LED resistance to weak grids in developing world

to be installed immediately downstream of the breaker in the home's main panel) be helpful, and if so, does anyone have any recommended brands? thanks Jim MacDonald ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.or

Re: [RE-wrenches] Salt & Aluminum vs Galvy

integrity would be compromised. Unanodized Al failing much faster in an environment <50 mi from the coast? Any info here appreciated. cheers Jim MacDonald Design + Engineering Dept. Solar Energy Systems, LLC Brooklyn, NY 11222 www.solarEsystems.com<http://www.solaresystems.com/> From: re

[RE-wrenches] history of grid-tie inverters

e, or book that talks about the first grid-tied PV systems? If it includes info about pioneer GT systems in Europe, Japan, and elsewhere as well, that'd be great. thanks Jim MacDonald Solar Energy Systems, LLC Brooklyn, NY 11222 ___ List sponsor

[RE-wrenches] Fire Access lane for ground mount

Has anyone come across a Fire Dept asking for such access? Couldn't find anything in old threads nor solar pro. Thanks for any input Jim MacDonald Design + Engineering Dept. Solar Energy Systems, LLC www.solarEsystems.com<http://www.sola

[RE-wrenches] a big bundle of +'s and a separate big bundle of -'s

all 1 polarity? And, sorry but I could not find what William wrote about the impedance [DC resistance] in this situation. Hope my question is clear. Thanks Jim MacDonald Design + Engineering Dept. Solar Energy Systems, LLC Brooklyn, NY 11222 www.solarEsystems.com<http://www.solaresystems.com/&

[RE-wrenches] Cell temperature (back of module temp) effects on yearly kWh predicted generation

) Therefore 5.6% less than 1275 kWh/yr. I'm hoping this logic makes sense. How bout out in the desert? 10%+ losses? Thanks for your thoughts on this PS- I know PVSyst will tell me this, havent figured out how to ask it properly yet.. ;) Jim MacDonald Solar Energy Syste

[RE-wrenches] Xantrex GT30

, had some ruff experiences a few yrs back. Schneider whoopin them into shape at all? This one looks nice on paper. 200kWdc systems done with 6 of these hangin on the wall= no concrete pads to pour.. sounds good. Jim MacDonald Solar Energy Systems, LLC Brooklyn, NY 11222 www.solarEsystems.com

Re: [RE-wrenches] overfeed 7kW gridtie inverter or drop a mod per string?

Im sorry, I meant to write “11 modules per string” below.. Been a long day.. From: Jim MacDonald Sent: Monday, April 19, 2010 7:41 PM To: RE-wrenches Cc: Jason Szrom Subject: RE: [RE-wrenches] overfeed 7kW gridtie inverter or drop a mod per string? SB8000US only good for 480 Vac, we’re tying in

Re: [RE-wrenches] overfeed 7kW gridtie inverter or drop a mod per string?

overdrawn our accounts." Barbara Kingsolver - Water is life. From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Jim MacDonald Sent: Monday, April 19, 2010 2:37 PM To: RE-wrenches@lists.re-wrenches.org Subject: [RE-wrenches] overfeed

[RE-wrenches] overfeed 7kW gridtie inverter or drop a mod per string?

Any ideas appreciated, thanks Jim MacDonald Solar Energy Systems, LLC Brooklyn, NY 11222 www.solarEsystems.com<http://www.solaresystems.com/> ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options &

[RE-wrenches] Two systems on the same steel rack; different GEC's

Hello wrenchers We've got 2 systems [23kW and 44kW] going up on Solarmount onto a single large custom steel dunnage structure on top of a warehouse. >From the ground it will look like a single massive array, but actually 1/3 of the modules (8 strings) will be fed into (2) Fronius [which wi