NREL says long-term degradation of 8 GW of US solar ‘matches expectations’
Research by the National Renewable Energy Laboratory (NREL) on the degradation of almost 8 GW of US solar shows that PV systems are degrading at a modest rate, within expectations. It says most PV systems experience minimal damage from short-term extreme weather, but warns of the risk of powerful hail, wind and snow.
First Solar claims lowest module degradation rate in the industry
The US cadmium telluride thin-film module maker said its Series 6 CuRe panels are able to retain 92% of its performance at the end of the 30-year warranty. The improved stability of the product was achieved by eliminating copper and placing Group V elements such as antimony or arsenic onto the tellurium crystal sites.
