Re: [RE-wrenches] panel failure

Ron, The lack of response may indeed be your answer. I didn't reply because it hasn't happened on my watch and I have no idea what would cause what you describe. Allan > On Sep 15, 2015, at 8:30 PM, RM You wrote: > > Just wondering if any esteemed wrenches have an

Re: [RE-wrenches] Battery bank calculator

David, Windy's system sizing spreadsheet was first developed in the 1990s or so, when PV was expensive and lead (and copper) were relatively cheap. In those days, "one panel per battery" was a standard rule of thumb -but panels were seldom more than 55 watts, so 110 watts (6 1/2 A) was about

Re: [RE-wrenches] Battery bank calculator

(Sent accidentally before ready) That offer to send the sizing spreadsheet was meant for anyone on the list, not just Dave. Allan > On Sep 15, 2015, at 6:04 PM, "Dave" wrote: > > The AEE catalog battery sizing template works well as it allows you to dial > back

Re: [RE-wrenches] Battery bank calculator

The AEE catalog battery sizing template works well as it allows you to dial back the days of autonomy needed. As I remember the old Dankoff Solar battery sizing method pushed the watt hour size of battery banks to large, and expensive, levels. The collective experience of this group, and

Re: [RE-wrenches] panel failure

Just wondering if any esteemed wrenches have an idea what could cause this problem? Customer says nothing unusual happened that he is aware of and the panels had been working fine for many years but now 4 of 6 panels just quit. Doesn’t appear to be a diode failure. Ron > On Sep 11, 2015, at

Re: [RE-wrenches] Battery bank calculator

Home Power used to have a pretty comprehensive spreadsheet available to download from their website. AEE and Sunwize had manual ones in their catalogs as well. -Glenn From: RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of gary easton Sent: Tuesday, September

Re: [RE-wrenches] Guarding against live parts 690.7 (D)

How many basements, utility rooms etc. have conductors that fail the ground mounted solar array test? I hope the live parts is what is protected and not the conductors themselves. On 9/10/2015 7:32 PM, William Miller wrote: Ray: I apologize but I thought this discussion was off-line. Mike

Re: [RE-wrenches] Battery bank calculator

Hi gang, if you have any questions contact me off-list. The EnergyMaster spreadsheet by The Wizard & Richard Perez is available for download here: http://redwoodalliance.org/files/energymaster.xls But it's pretty dated. Glenn Burt wrote at 08:02 AM 9/15/2015: >Home Power used to have a

Re: [RE-wrenches] Battery bank calculator

Trojan manufacturer specific: http://www.batterysizingcalculator.com/ ​ ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings:

[RE-wrenches] Battery bank calculator

anyone have a suggestion for a battery bank sizing tool? -- Sent from Gmail Mobile ___ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings:

Re: [RE-wrenches] Battery bank calculator

I don't think it can be done accurately with a sizing tool i've actually never heard of a tool at least not that I can remember There's far too many variables. Everything from loads to solar isolation as well as the habits of the individual occupants and the appliance selection in the home The