Luddites will be Luddites.....
Energy storage does not equal battery storage. There are other, methods of storing energy being used and developed. Hydro, pressure, kinetic (fly wheel storage), thermal (direct solar heat), gravity (trains on steep inclines, dropping weights into mine shafts...), I'm sure there's more. Whichever will be the cheapest will win in the long term. Right now, we're in a phase of very rapid development, which always results in many bone-headed ideas. Think early repeating firearms..... how many pepper boxes out there today?
The fundamental economic question is: what is the cheapest way to generate electricity? Right now, that's solar (below about 50 degrees latitude, anyway) and second is wind. Even with backup storage. In the current regulatory environment, nuclear is just about the most expensive. Last year natural gas was pretty inexpensive, next year might just be a s#it show.
Sit back, relax, there's going to be a lot of changes over the next two decades. Might as well enjoy the ride.
