but they used to be dysmal, like 30% reduction in generation capacity over 5 years.
??? Monocrystalline silicon losses less than .4% a year. That means after 50 years it’s still producing 82% of when it was new. It takes 90 years to get a 30% reduction rate.
Monocrystalline silicon was used 20 years ago. It’s the oldest solar technology.
According to the source data in a link in the page I linked thin film CIGS rollable solar sheets was the least durable. Panels installed before 2000 had a degradation of 3.5% a year. That’s 10 years to lose 30%. But CIGS solar systems installed after the year 2000 show only .02% degradation a year. The document talks about manufacturing defects that were corrected.
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??? Monocrystalline silicon losses less than .4% a year. That means after 50 years it’s still producing 82% of when it was new. It takes 90 years to get a 30% reduction rate.
https://www.engineering.com/story/what-is-the-lifespan-of-a-solar-panel
Do you know the type of pv panel that was used 20+ years ago? I lived in an off grid house and my dad mentioned that at one point.
Monocrystalline silicon was used 20 years ago. It’s the oldest solar technology.
According to the source data in a link in the page I linked thin film CIGS rollable solar sheets was the least durable. Panels installed before 2000 had a degradation of 3.5% a year. That’s 10 years to lose 30%. But CIGS solar systems installed after the year 2000 show only .02% degradation a year. The document talks about manufacturing defects that were corrected.
http://www.nrel.gov/docs/fy12osti/51664.pdf
Ok, I’m just flat wrong! Til!