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Sometimes we create our own problems.
(lemmy.world)
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this post was submitted on 28 Apr 2025
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Yeah, right now end of life EV batteries are great for making your own power storage but that's a level of diy beyond what 95% of people are willing or able to do
What's infuriating is that we had electric cars before ICE powered cars. 1899. If we would've been investing money and effort into research for battery technology since then, we wouldn't have this problem. Salt batteries, solid state batteries, and other promising tech is in it's infancy because we just started to take this seriously as a society like 10 years ago.
Better late than never but it grinds my gears that the best argument against solar and wind is power storage requirements due to unpredictable power generation. Like this is an extremely solvable problem.
End of life EV batteries are great for grid-scale operators doing power storage, but I highly recommend against homeowners use them this way. Not just because they are complex DIY projects as you point out, but because the EV batteries that are aging out of car use are NMC chemistry. These are great for high density power storage, which you want in a car, but they are susceptible to thermal runaway if they get too hot. The original Tesla Powerwall and Powerwall 2 also used these same chemistry batteries. I wouldn't want these in my house. However, in a utility grid scale? Sure, they won't be anywhere near people so in the unlikely event they do catch fire its a property problem, not a lost human life problem.