FERC issued a preliminary permit [1] for a proposed 189MW pumped storage project in Essex County, New York. From FERC's order Issuing Preliminary Permit (for docket P-12635):

The proposed [189-megawatt (MW] Mineville Pumped Storage Project would be located in the existing Old Bed, New Bed, and Harmony Mines within the town of Moriah in Essex County, New York. The mines are owned by X-Earth Corporation of Elizabethtown, New York, and by Rhodia Corporation of Cranbury, New Jersey.

The proposed [project] would consist of: (1) an upper reservoir using the existing + 200 level of the underground Harmony Mine having a surface area of 99 acres, with a storage capacity of 1,900 acre-feet and a normal water surface elevation of 200 feet NGVD, (2) a lower reservoir using the existing underground -1185 level of the Harmony Mine having a surface area of 75 acres, with a storage capacity of 2,500 acre-feet and a normal water surface elevation of -1,135 feet NGVD, (3) seven identical 1000-foot-long, 96-inch-diameter vertical bored penstocks with grouted steel casing, (4) a proposed powerhouse containing seven generating units having a total installed capacity of 189 MW; (5) a proposed 1-mile-long, 115-kV transmission line; and (6) appurtenant facilities. The project would have an annual generation of 650 GWh.