> One flashy idea for storing energy goes something like this: dam a river, Incorrect. Or rather not necessarily correct. Pumped hydro does not necessarily req

> One flashy idea for storing energy goes something like this: dam a river, Incorrect. Or rather not necessarily correct. Pumped hydro does not necessarily require damning a river. > Making matters worse, about a quarter of the energy is cannibalized to do all that pumping. Pumped hydro is largely considered one of the most efficient forms of energy storage, beating most other methods by a fair amount. > This approach can be deployed far faster than dam construction, and free of protest (except perhaps from dam builders). We can't do both?