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Splenda t1_j2o92kt wrote

Reply to comment by Jamie1897 in PV Cells Still Generally Produce 80%+ of Initially-Rated Power Despite Expected Damage by Alias_The_J

NREL now rates most new panels at 16 - 22% efficiency, and quickly improving. Meanwhile, the EROI payback is now less than two years (the old Weisbach graph that was kicking around for years, showing poor EROI, was based on pre-2010 German data with cloudy skies, northern latitude and far more materials and energy inputs than present panels use).

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