Just looked at the site and didn't see them anymore, so it's a gone deal...
On 6/4/21 12:59 PM, Adam Moffett wrote:
Yeah, I suppose some kind of continuous load that will take whatever the
panel can put out....like a big resistor with a heat sink.
Then meter the WH output. Do it in a dark room and have a constant
light source that's the same for each panel being tested. Mount each
sample in the same position.
Sounds simple in theory, but I ain't got the time for that stuff.
On 6/4/2021 3:54 PM, Mathew Howard wrote:
It seems like it should be relatively simple to build a test setup
where you could just shine some kind of a light on it, and measure the
output compared to a new panel... whether or not it would be worth the
bother for anybody to do that, is another matter.
On Fri, Jun 4, 2021 at 2:42 PM Adam Moffett <dmmoff...@gmail.com
<mailto:dmmoff...@gmail.com>> wrote:
There must be a way...
My Father-in-law works at a lab at Cornell where they wanted a
number of panels with all exactly the same efficiency for a
research project. Not sure the test method, but obviously they
figured one out.
On 6/4/2021 3:05 PM, Steve Jones wrote:
How do you guage a level of used on solar panels? Age? Visual
issues? Can you test efficiency reliably, like set up a uv light
and specified distance in dark room and measure output? As they
age what's the curve look like on efficiency loss?
On Fri, Jun 4, 2021, 1:12 PM David Coudron
<david.coud...@advantenon.com
<mailto:david.coud...@advantenon.com>> wrote:
What you see on snail roads.
I am guessing they are smears of some kind that affect the
clear top layer?
Get Outlook for iOS <https://aka.ms/o0ukef>
------------------------------------------------------------------------
*From:* AF <af-boun...@af.afmug.com
<mailto:af-boun...@af.afmug.com>> on behalf of Bill Prince
<part15...@gmail.com <mailto:part15...@gmail.com>>
*Sent:* Friday, June 4, 2021 1:09:14 PM
*To:* af@af.afmug.com <mailto:af@af.afmug.com>
<af@af.afmug.com <mailto:af@af.afmug.com>>
*Subject:* Re: [AFMUG] solar panels
Some of the used ones list defects in the description. Saw
one that said "cracked", and another said "snail tracks". WTH
are snail tracks?
bp
<part15sbs{at}gmail{dot}com>
On 6/4/2021 11:05 AM, Chuck McCown via AF wrote:
Ah, they are used. I wonder how much used...
*From:* Robert
*Sent:* Friday, June 4, 2021 11:59 AM
*To:* af@af.afmug.com
*Subject:* Re: [AFMUG] solar panels
I haven't seen anything that will beat this. $45/panel for
224watts.
https://shop.signaturesolar.us/products/224w-60cell-silver-poly-solar-panel-by-sharp
On 6/4/21 10:37 AM, Chuck McCown via AF wrote:
Who has the best deals for solar panels these days?
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