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this post was submitted on 09 Apr 2024
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Science Memes
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Yeah, but PV is dirt cheap nowadays. Also
If by "few" you mean like 30-50 then sure, they degrade. But it certainly beats anything with a spinning turbine. Or anything with moving parts really. PV is purely solid state physics, you can't get more longevity than that.
That's not true. You can also simply turn PV off. The inverters only run when they sense 50 Hz on their output terminals, it's easy to have them turn off when it's 50.2 instead. Basically all big powerplants follow that rule already, ordered by things like shutoff time etc.
Funny that you specified in the desert. The appeal of PV is not only that it's cheap and easy, it also scales down to small investments and local power generation. If base load actually becomes a problem concentrated solar power will be relevant. But for now, slapping a few solar panels on your roof just makes sense.
lmao your consumer grade photovoltaic panels will not last 50 years.
The solar panels I just bought have a manufacturer warranty for 87% power output after 30 years.
That's much more realistic, I like that.
My dad is still using the first 60w panel he bought in 1986, for 600$. Obvs added many more to his system, and who knows how efficient it is, but it does work, haven't put a ampmeter on it though.
Mind you it was made in the USA, probably better materials than nowadays.
The mass market has really pushed solar panel production. I expect the material quality even of the cheap china panels to be better than what anyone was able to produce almost 40 years ago. That's a long time to understand degradation processes and develop countermeasures.