![an aerial photo of a forested mountain valley with a blue body of water at the center](https://img.canarymedia.com/content/uploads/compressed-kentucky-hydro.jpg?auto=compress%2Cformat&crop=focalpoint&fit=crop&fp-x=0.5&fp-y=0.5&h=392&q=80&w=676&s=ef911d2bc9d4771d7ac54386130f0713)
Energy storage
This Kentucky coal mine could transform into pumped-hydro grid storage
With $81M from DOE, Rye Development aims to build the first pumped-hydro project on the site of a former mine to bolster the grid and revitalize the local economy.
By Julian Spector .