OK, question for #solarpunks and those into #ecotech
What's a good small scale way to store energy that's not a battery?
@solarbear This seems like a really cool option, but it’s still very new and untested: turning rust into iron powder, which can then be burned. https://www.youtube.com/watch?v=rKVj1CwAmmk
@singingwolfboy facinating concept.
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