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 <[email protected]> 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 <[email protected]> > 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 <[email protected]> on behalf of Bill Prince < >> [email protected]> >> *Sent:* Friday, June 4, 2021 1:09:14 PM >> *To:* [email protected] <[email protected]> >> *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:* [email protected] >> *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? >> >> >> ------------------------------ >> -- >> AF mailing list >> [email protected] >> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >> >> -- >> AF mailing list >> [email protected] >> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >> > > -- > AF mailing list > [email protected] > http://af.afmug.com/mailman/listinfo/af_af.afmug.com >
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