Solar modules deployed in France in 1992 still provide 75.9% of original output power
- Admin
- Jun 7, 2024
- 1 min read
The French association Hespul, established in 1991, conducted tests on photovoltaic panels revealing that after 31 years of operation, the modules still produce on average 79.5% of their initial power. The testing involved a corporate sponsorship by Certisolis and Isowatt. Various studies, including one by the US NREL, showed different median degradations in solar panel performance over time.
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