> EIA disagrees with you. Batteries are increasingly being used to respond to price fluctuations, which means storage. Your link states that respondents may pr

> EIA disagrees with you. Batteries are increasingly being used to respond to price fluctuations, which means storage. Your link states that respondents may provide multiple answers. That means that someone buying batteries for frequency regulation may also decide, should the opportunity arise, to do some arbitrage. Because of that, it's pretty hard to claim that storage is viable for a single use case.