Blenheim-Gilboa Pumped Storage Power Project
New York Power Authority - Schoharie County - NYISO
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.
Overview
Key fields
- Nameplate capacity
- 1,000 MW
Canonical EIA plant baseline.
- Registry anchor
- Plant 2691
plant-2691
Structured profile
- Technology
- Hydroelectric Pumped Storage
- Operator
- New York Power Authority
Commercial, land, and environmental record
Source-backed project transactions, agreements, land records, permits, and environmental disclosures. Portfolio and adjacent-project facts remain explicitly scoped.
Transactions and agreements
Related parties and identifiers
Parties, market resources, and identifiers tied to this asset, with owner, operator, developer, EPC, compliance provider, and interconnecting entity roles kept separate.
Relationship graph
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Parties and identifiers
| Relationship | Entity | Basis |
|---|---|---|
| Owner / operator | Owner and operator | |
| Regulator | Federal licensing and regulatory authority | |
| Balancing authority / market operator | Wholesale market operator and balancing authority | |
| Equipment supplier | Hitachi | Original equipment manufacturer and modernization supplier |
| Construction contractor / O&M provider | Life Extension and Modernization refurbishment contractor | |
| Grid selection | plant:plant-2691 | Canonical asset page /nyiso/assets/plant/blenheim-gilboa-pumped-storage-power-project. |
Timeline and sources
Project milestones and public references behind the asset profile.
Project timeline
- Life Extension and Modernization program completedrenewableen...
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.
- Relicensing Application Filedferc.gov
NYPA filed an application with the Federal Energy Regulatory Commission for a new license to continue operating and maintaining FERC Project No. 2685. The application proposed no new generation capacity.
Sources
Common questions about Blenheim-Gilboa Pumped Storage Power Project
Answered from the published record above. Questions whose inputs this profile does not carry are omitted rather than estimated.
How big is Blenheim-Gilboa Pumped Storage Power Project?
Blenheim-Gilboa Pumped Storage Power Project has a reported capacity of 1,000 MW. Source: EIA Form 860M.
What kind of plant is Blenheim-Gilboa Pumped Storage Power Project?
Blenheim-Gilboa Pumped Storage Power Project is a Hydroelectric Pumped Storage facility in Schoharie County, NY, participating in the NYISO market.
Where is Blenheim-Gilboa Pumped Storage Power Project located?
Blenheim-Gilboa Pumped Storage Power Project is in Schoharie County, NY, inside the NYISO balancing area.
Who operates Blenheim-Gilboa Pumped Storage Power Project?
Blenheim-Gilboa Pumped Storage Power Project is operated by New York Power Authority according to the EIA generator inventory. Reporting membership does not by itself establish ultimate ownership.
Co-located assets
Plants within 25 km, nearest first, regardless of technology. Proximity is straight-line distance between mapped plant coordinates; it does not by itself establish a shared point of interconnection.
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