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How big a solar battery do I need to store all my home's electricity? - Terence Eden (shkspr.mobi)
submitted 1 year ago by to c/technology@lemmy.world
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Neat breakdown with data + some code.

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[–] 6 points 1 year ago (2 children)

I wish the second-hand battery market were more lively. Using half-worn car battery packs seems optimal for home use.

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  • [–] 2 points 1 year ago* (last edited 1 year ago)

    It is. Some of them are getting snapped up to help with powering factories.

    I think this is car companies using the incoming battery packs from replacing worn out packs. Time to look it up...

    https://www.autoblog.com/news/toyota-just-found-a-clever-new-use-for-old-ev-batteries

    This is the article I was thinking of. It's more of an idea than a common use case to use old packs to help power factories.

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  • [–] 1 point 1 year ago*

    Using half-worn car battery packs seems optimal for home use.

    I'm not putting cobalt based (NMC or NCA) batteries bolted to the inside my house. Thats nearly exclusively what car battery packs are. Thermal runaway is too great a risk to bolt that much energy to a wall in the house. I am comfortable with LFP in the house though.

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