The big problem is balancing generation and demand. Demand is variable and it is very hard to spin generation up and down. Gas peaked plants have been a popular

The big problem is balancing generation and demand. Demand is variable and it is very hard to spin generation up and down. Gas peaked plants have been a popular way to solve it. Electric cars are actually a brilliant way of flattening out the demand curve so that utilities have to do less ramping up and down. There’s a significant amount of good they can do simply by consuming power at night.