I live near TVA's pumped storage facility at Racoon Mountain[1]. Until a few years ago, it was "the largest battery in the world" based on ability to store kWHs

I live near TVA's pumped storage facility at Racoon Mountain[1]. Until a few years ago, it was "the largest battery in the world" based on ability to store kWHs. This one facility helps stabilize an entire xxGW US region's grid. [1] https://en.wikipedia.org/wiki/Raccoon_Mountain_Pumped-Storage_Plant https://en.wikipedia.org/wiki/Raccoon_Mountain_Pumped-Storag...