Storage is very tough to work out. You pay for all this capacity, but you only get to make money a couple of times a day. Dam a river and you can generate pow

Storage is very tough to work out. You pay for all this capacity, but you only get to make money a couple of times a day. Dam a river and you can generate power 24 hours a day. Build a pumped-storage facility, and you'll be lucky to get a half-hour out of it. You really need a wide spread between baseload and peak prices to make it work out. Ironically, renewables are destroying the economics of pumped storage in Germany. On sunny days, solar panels displace much of the peak load from pumped storage. On rainy days, the pumped storage suddenly becomes crucial to the grid. Except that pumped storage cannot make money by operating only on rainy days.