• ERCOT
• PJM
• CAISO
• All markets

• ERCOT
• PJM
• CAISO
• All markets

A 1,160 MW hydroelectric pumped-storage project on Schoharie Creek in the Towns of Blenheim and Gilboa, Schoharie County, New York, operated by the New York Power Authority. The facility uses two reservoirs at different elevations and four reversible pump-turbine units (approximately 290 MW each) to store and generate electricity, providing peak-demand capacity and grid-balancing services to the New York region. The project first generated power on July 5, 1973, and reached full production on December 17, 1973. Between 2006 and 2010, NYPA completed a Life Extension and Modernization program that refurbished all four turbine-generator units and increased plant capacity from approximately 1,040 MW to 1,160 MW.

Physical map location · OpenStreetMap

42.44309, -74.44834

Filed location · EIA

42.44230, -74.44790

EIA-923 reports gross generation and net grid exchange for storage plants. Gross generation is shown as a discharge proxy; it is not a cycle count or conventional capacity factor.

NYPA returned the last of Blenheim-Gilboa's four pump-turbine generating units to service as part of the Life Extension and Modernization program. All four units had completed refurbishment with increased capacity from 260 MW to 290 MW per unit, bringing total plant capacity to 1,160 MW.