Storage is useful at all sorts of scales, from microseconds to years. Interseasonal or even a dunkleflaute's worth is hard at the moment, though we manage it w

Storage is useful at all sorts of scales, from microseconds to years. Interseasonal or even a dunkleflaute's worth is hard at the moment, though we manage it with heat and with (eg) methane already in places. It's happening. Plus we are getting better at moving demand to when energy is available.