
ALT Black and white photo, June 25, 1947: a turbine runner made by Newport News Shipbuilding and Drydock Co. of Newport News, Virginia, hangs from a crane on arrival at Grand Coulee Dam, with two workers standing on top. Credit: U.S. Department of the Interior, Bureau of Reclamation (public domain).

ALT Cross-section diagram of the Bath County pumped storage station in Virginia, not to scale. An upper reservoir of 265 acres, behind a dam 460 feet high, connects through tunnels to a powerhouse with six turbine generators and a lower reservoir of 555 acres. 12.7 million gallons a minute are pumped up when demand is low, usually overnight (blue). 13.5 million gallons a minute fall when demand rises (red). The upper level moves as much as 105 feet and the lower 60 feet. Footer: 3,003 MW generating capacity, 750,000 homes it can supply, in service since 1985. Source: Dominion Energy.






























