4 ms·
That does seem exaggerated, though people throw around 25yr as a standard lifetime for PV[1] (with an approx. degradation of 1% output per year). 20-25yr for a
by blacksmith_tb 4y ago
That does seem exaggerated, though people throw around 25yr as a standard lifetime for PV[1] (with an approx. degradation of 1% output per year). 20-25yr for a wind turbine also looks believable (pretty good given that's not solid state like the PV).
1: https://energy.mit.edu/news/study-even-short-lived-solar-panels-can-be-economically-viable/ https://energy.mit.edu/news/study-even-short-lived-solar-pan...
- crote 4y agoPV is now being sold with a 25-year warranty - it'll still have at least 80% capacity after that time. As the article rightly points out, it often just makes more economic sense to replace them earlier due to improvements in panel technology. There isn't really a technical reason to replace them.
- dymk 4y agoModern panels, such as the ones I just purchased, are warrantied for 92% original efficiency after 25 years
- jeffbee 4y agoThere are panels in NREL's PV Lifetime Project that are on pace to have 80% rated output after 200 years. https://www.nrel.gov/docs/fy22osti/81172.pdf https://www.nrel.gov/docs/fy22osti/81172.pdf PV "lifetime" is overblown fossil industry propaganda. It does not factor into any economic decision.