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Blenheim Gilboa

Schoharie County, New York · EIA plant ID 2691 · Operator: New York Power Authority
HydroHydroelectric Pumped StorageNYISOBA: NYIS
Nameplate1,000MWSummer 1,171 MW
Generators4in service
Net generation-227GWh12 mo to Aug 2026
Capacity factor—not meaningful for storage
Heat rate—thermal plants only
First online1973

The 12-month figures include preliminary EIA-923 months, which EIA revises. Final data runs through Dec 2025.

Monthly net generation

EIA-923, all units at the plant. Net of station use; storage can go negative.
FinalPreliminary
-80-60-40-200GWh2001200320052007200920112013201520172019202120232025

Capacity factor by year

Net MWh ÷ (summer MW × hours), primary-fuel units. Each year uses that year's EIA-860 ratings; the hollow dot is the latest 12 months.
No capacity factor available.

Heat rate by year

Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
Heat rate applies to fuel-burning (thermal) units only.
Annual data table
YearNet GWhCapacity factorHeat rate (Btu/kWh)
2001-559.3——
2002-557——
2003-541.6——
2004-442.7——
2005-429.9——
2006-396.1——
2007-384.9——
2008-287.8——
2009-118.8——
2010-157——
2011-100.6——
2012-92.7——
2013-121.3——
2014-176——
2015-177.5——
2016-186.2——
2017-163——
2018-200.6——
2019-120.5——
2020-140.2——
2021-148.2——
2022-212.2——
2023-146——
2024-171.2——
2025-245.3——

Generators

EIA-860 (annual) with EIA-860M updates through Sep 2026. EIA-923 reports generation by plant, prime mover and fuel, not by unit, so unit-level output isn't shown.
Gen IDTechnologyPrime moverNameplate MWSummer MWOnlineStatusPlanned retirementOEM / model
1Hydroelectric Pumped StoragePS250292Jul 1973Operating—coming soon
2Hydroelectric Pumped StoragePS250293.2Jul 1973Operating—coming soon
3Hydroelectric Pumped StoragePS250292.4Jul 1973Operating—coming soon
4Hydroelectric Pumped StoragePS250292.9Jul 1973Operating—coming soon

Owner / operator

Operator: New York Power Authority. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
New York Power Authority100.0%1,000 MW

Nearby plants

Within 80 km.
East Point Energy Center50 MW9.5 km
Medusa NY 12 MW28.7 km
Costanza Solar2 MW31.1 km
Freehold(CSG)2 MW34.6 km
RT405 Westerlo Solar 25 MW35.4 km
RT32 Westerlo Solar 15 MW35.4 km