HydroOperatingNYISO

Ashokan

Hydro power plant in Ulster County, New York. 4.6 MW of nameplate capacity across 2 generators, operated by New York Power Authority.

Also known as EIA plant 88

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6 plants within 15 km, from EIA coordinates.

Key facts

Capacity
4.6 MWNameplate
Generators
2 operatingEIA-860M, August 2026
Operating since
November 1982First generator online
Operator
New York Power AuthorityEIA operator ID 15296
Grid
NYISOBalancing authority NYIS
Price nodes
1 NYISO nodeResource nodes with prices
Location
Ulster County, NY41.9490, −74.2063
EIA plant ID
88EIA plant page

Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.

How much power Ashokan produces

Free · EIA-923

Net generation, 2025

11.1 GWh

11,140 MWh, final

Capacity factor, 2025

27.6%

2024: 27.8%

January to July 2026

Not reported

Provisional. 0 of 7 months reported

Range, 2015 to 2025

6.9–13.3

GWh a year. Low 2020, high 2017

Annual net generation, GWhCapacity factor below each year
Annual net generation from EIA-923
YearNet generation, MWhCapacity factorMonths reported
200024,785Not reported12 of 12
200120,496Not reported12 of 12
2002379Not reported12 of 12
200317,515Not reported12 of 12
200421,548Not reported12 of 12
200522,797Not reported12 of 12
200625,348Not reported12 of 12
200722,112Not reported12 of 12
200816,403Not reported12 of 12
200911,156Not reported12 of 12
20107,27518.1%12 of 12
20119,21222.9%12 of 12
201210,29025.5%12 of 12
201310,81126.8%12 of 12
20147,92419.7%12 of 12
201511,87929.5%12 of 12
201610,87626.9%12 of 12
201713,25132.9%12 of 12
201812,66231.4%12 of 12
201910,43725.9%12 of 12
20206,88417.0%12 of 12
20217,10417.6%12 of 12
202210,84226.9%12 of 12
202311,00227.3%12 of 12
202411,24427.8%12 of 12
202511,14027.6%12 of 12
2026 (provisional, partial year)Not reportedNot reported0 of 7

* 2026 covers January to July and is provisional. Capacity factor is net generation divided by nameplate capacity times the hours of each reported month.

Power prices and basis

Free account · NYISO

Emissions

Free · EPA CAMPD

No EPA emissions units are linked to this plant.

Water use

Free · EIA-923 cooling, USGS

No EIA cooling-water record for this plant in 2024. Plants without steam cooling, such as wind, solar and batteries, do not report cooling water.

Generators

Free · EIA-860M
GeneratorTechnologyNameplate MWOnline since
1Conventional Hydroelectric2.3November 1982
2Conventional Hydroelectric2.3November 1982

Ownership and offtake

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Ownership and offtake are part of Pro

Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists New York Power Authority as the operator, which is not always the owner.

Modeled data

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Power plants near Ashokan

More plants operated by New York Power Authority

Questions about Ashokan

How much power does Ashokan produce?

Ashokan reported 11,140 MWh (11.1 GWh) of net generation in 2025, a 27.6% capacity factor on 4.6 MW of nameplate capacity.

Where is Ashokan?

Ashokan is in Ulster County, New York, at 41.9490, −74.2063. It is in the New York Independent System Operator balancing area (NYIS).

Who operates Ashokan?

EIA-860M for August 2026 lists New York Power Authority as the operator (EIA operator ID 15296). The operator is not always the owner.

When did Ashokan start operating?

Its first generator began operating in November 1982, according to EIA-860M.

Does InfraMap have power prices for Ashokan?

Yes. InfraMap has NYISO day-ahead and real-time prices at 1 price node linked to Ashokan, with the hub price and node-to-hub basis. Prices are free with an InfraMap account; pricing node names are part of InfraMap Pro.

Sources

  • EIA-860 2025 (final) and EIA-860M August 2026: plant, generators, capacity, operator and location
  • EIA-923 monthly net generation, 2000 to July 2026 (2026 provisional)
  • NYISO day-ahead and real-time prices; node and hub assignments as of 2026-10-05

Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page