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kalkulat@lemmy.world ⁨1⁩ ⁨week⁩ ago

Author’s diagram is about summer. Fall, winter, spring is about heating-degree days. If you’re heating your home with electricity, you’ll not get there with batteries.

So, working towards a solution, there are other ways to store excess energy than in batteries. One example is sand, which can be heated to very high temperatures. Insulate a sand container well and its storage can do a lot of home-heating.

Example: livescience.com/…/a-scalding-hot-sand-battery-is-…

We’ll need to put a lot of different methods into use. There are many practical ideas out there, and they’ll need to be tried.

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