Here’s the problem with electricity: it costs 5 cents to make a kilowatt-hour, but it costs $150 worth of batteries to store a kilowatt-hour. And it’s only that cheap if you use lead-acid batteries, which are (a) very heavy; and (b) made with toxic materials.
Wouldn’t it be nice if there were a battery that was as light as lithium, and as cheap as lead-acid? Wouldn’t it be nice if it were made of completely non-toxic materials — so safe you could eat them? Wouldn’t it be nice if it were being manufactured right now, right here in the USA?
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