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They don't stop working. They just produce less power as time goes by. Most lose about 1% per year. Top tier lose about 1/2% per year.
The real issue with the loss is coupled with the original lower efficiency of the older panels. 10 years ago, standard 1x1.6m panels produced around 200 Watts. That same panel will now make 300. The idea is to replace the panels when you will get a 100% boost by replacement. 160 Watts becomes 300.
Stijn is quite correct, except for the toxic heavy metals in the doped silicon. They should not go in a landfill. The aluminum frame will be recycled. The glass? Not as likely.
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James
The pessimist complains about the wind; the optimist expects it to change; the engineer adjusts the sails.- William Arthur Ward (1921-1994)
Red-beard for President, 2020
Last edited by red-beard; 10-17-2019 at 10:36 AM..
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