The miners build their station in the place where energy is really cheap and they pay just 0.3 USD per 1 kWh.
Ahh, the power of a decimal place. 0.3USD/kWh is VERY HIGH, it's what I pay here in southern California.
I'm sure they meant 0.03USD/kWh...
In Hawaii I think it is something like $0.35 per KWH.