Forcing other use on the same grid to come from fossil fuel plants that would not need to operate at the same capacity without the Bitcoin operation.

I don't really think so - I think China built dams in places with too much capacity and it's cheap because it's not in high demand.

> Most of it comes from hydroelectric plants with very cheap prices.

Hyrdo isn't green energy. Dams block fish migrations and fuck up the surrounding ecosystem.