That's a pretty good point. The only answer I can think of is that people are using these batteries to avoid peak electric prices during the day, while chargin

That's a pretty good point. The only answer I can think of is that people are using these batteries to avoid peak electric prices during the day, while charging it up when electricity is cheap. If that is your plan, and you don't care much about having electricity when the city goes black, you could join the program.