[jnxx]

Are not renewables (that is, wind and solar) the cheapest energy sources today? If I understand correctly, that would mean that bitcoin mining has to use them (in order to stay competitive), and bitcoin is effectively subsidizing renewables (because it pays money for renewable power generation, especially at times with low other demand - which makes expensive storage of electricity less of an issue).

The only thing necessary would be to cancel ASAP any public subsidies for fossil-powered generation of electricity (which is a measure that is overdue anyways).