anyone have a suggestion for a battery bank sizing tool?
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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
Trojan manufacturer specific:
http://www.batterysizingcalculator.com/
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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 15
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 H
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 pretty
Homer can do it but it is expensive.
http://www.homerenergy.com
On Sep 15, 2015 9:31 AM, "RE Ellison" wrote:
> 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 lo
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 oth
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 4:
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 st
(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 the days of autonomy needed. As
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 idea what could cause this
Thanks Allan, I was wondering about the lack of response as this group is
always very helpful. One begins to suspect the phantom cause, i.e. the rest of
the story that wasn’t told to us by the customer. It happens from time to time
;-)
Ron
> On Sep 15, 2015, at 9:07 PM, Allan Sindelar wrote:
Ron,
I'll pipe in here. If the module "works" when he bypasses the diodes, then
the diodes, or the solder connections on the ribbons or the diodes, must be
at fault.
I put "works" in quotes because we don't have the details on the meter
readings.
Brian
AEE Solar
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Fro
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