[zzo38computer]

It is a interesting (but seems strange) solution, but my guess is there is probably a better way. I would think a better way would be to avoid producing power that is not needed (and to avoid needing so much power, if you can avoid it). However, if you cannot avoid producing power, then it is better to store it (like you suggest). Bitcoin seems a possibility, although there are probably other (better) things that can use power too. If you do not have batteries, I would think it would be better to add batteries (unless the batteries are too inefficient, I suppose; however, I do not actually know how much inefficient will be "too much inefficient"). Another possibility might be a combination of these things.