Gas and hydro are highly controllable, but nuclear, coal and geothermal aren't really - just in the opposite way to solar and wind. Those sources are slow to r

Gas and hydro are highly controllable, but nuclear, coal and geothermal aren't really - just in the opposite way to solar and wind. Those sources are slow to ramp up and down - that's why the time-of-use power prices I face right now are at their lowest overnight (so I currently time shift as much load as I can to those times).