This is a really interesting solution to the problem with renewable power that there's no way to store it efficiently when demand is low, except batteries which

This is a really interesting solution to the problem with renewable power that there's no way to store it efficiently when demand is low, except batteries which are way too expensive. They could sell power during the day and mine bitcoin at night, whichever is more profitable at the time. edit: I just read the article and actually they're not selling power at all. Oh well. Bitcoin must be more profitable than selling the power. The free market at work.