Making a business out of selling stored energy has weird incentives. Storage is better integrated into a system along with generating and transmission capacity.

Making a business out of selling stored energy has weird incentives. Storage is better integrated into a system along with generating and transmission capacity. A business shaving peaks has been shown to work, and to favor maintaining a few minutes' worth of battery at high wattage capacity. Green hydrogen will be getting very cheap. It makes no sense to assume prices for everything will stay the same as the world changes around them. Natural gas generation equipment is easily retrofitted to burn synthetic hydrogen or ammonia, along with compressed air, so such purchases are not wasted. Burning along with compressed air yields more energy than the sum what you would get just burning, and separately running compressed air through the turbine. (Compressed air storage is really cheap to build out.)