I wrote:
> 2. In most parts of the U.S. where solar is widely used and most needed, > such as Nevada, solar does not need storage. It peaks right when demand is > highest. > HOWEVER, it turns out that a lot of battery storage these days is being used with solar, co-located. I did not know that. See: https://www.eia.gov/analysis/studies/electricity/batterystorage/ Terry Blanton <hohlr...@gmail.com> wrote: Solar panels life span is less than 20 yrs > They have improved. They last 25 to 30 years these days. Still 90% of original efficiency after 20 years. https://news.energysage.com/how-long-do-solar-panels-last/ https://www.sunrun.com/go-solar-center/solar-articles/how-long-do-solar-panels-really-last The whole of a nuclear power plant does not last 80 years. The reactor does, but the generator and much else has to be replaced after 30 years, I think. Or refurbished. Gas turbines do not last long. Even hydroelectric dam generators have to be replaced, although the dam itself can still be used. There is one near my house that has been producing ~17 MW since 1902. https://www.nps.gov/places/morgan-falls-dam.htm Wind turbine towers are expected to last about 100 years. The turbines themselves last 20 to 30 years, I think.
