> but the reality is that it's primarily hydro power because that's the cheapest. Thing is, in regions with cheap hydro power, the miners can use so much power

> but the reality is that it's primarily hydro power because that's the cheapest. Thing is, in regions with cheap hydro power, the miners can use so much power they end up making power more expensive for everyone. Err that depends. The thing with dams is that the water can never rise above a certain level, else the structural stability of the dam is compromised. So often they have to run the dam with turbines disconnected to lower the water level since there's nobody on the receiving end. That's also why some blocks of hydro power are very cheap (and time sensitive).