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The right wingers won't like this!
"thumper" wrote in message ...
On 6/26/2012 10:31 PM, Califbill wrote: Major problem with home and other solar panels is the degradation over time. The wattage output declines significantly over 5 years. About 0.5% per year. Major problem? --------------------------------------- Depends on the panel type. I think most cheap panels are C-SI which has up to 10% the first year and .5 to 5% the second year. Multicrystaline is an about 0.5%. A lot of the actual degradation is not the silicon part of the panel and UV absorption but the glass covering the panel. Environmental etching is the main problem. |
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