HydroOperatingNYISO

Deferiet

Hydro power plant in Jefferson County, New York. 12 MW of nameplate capacity across 3 generators, operated by Erie Boulevard Hydropower LP.

Also known as Deferiet Power Station · EIA plant 2552

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HerringsCarthage ACarthage BCarthage Energy LLCLongfalls FacilityDeferiet5 km
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6 plants within 7.8 km, from EIA coordinates.

Key facts

Capacity
12 MWNameplate
Generators
3 operatingEIA-860M, August 2026
Operating since
January 1925First generator online
Operator
Erie Boulevard Hydropower LPEIA operator ID 5914
Grid
NYISOBalancing authority NYIS
Price nodes
1 NYISO nodeResource nodes with prices
Location
Jefferson County, NY44.0381, −75.6806
EIA plant ID
2552EIA plant page

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

How much power Deferiet produces

Free · EIA-923

Net generation, 2025

40.2 GWh

40,177 MWh, final

Capacity factor, 2025

38.2%

2024: 59.7%

January to July 2026

Not reported

Provisional. 0 of 7 months reported

Range, 2015 to 2025

40.2–70.2

GWh a year. Low 2025, high 2019

Annual net generation, GWhCapacity factor below each year
Annual net generation from EIA-923
YearNet generation, MWhCapacity factorMonths reported
2000Not reportedNot reported0 of 12
200152,948Not reported12 of 12
200257,832Not reported12 of 12
200361,621Not reported12 of 12
20045,783Not reported12 of 12
200557,571Not reported12 of 12
200668,292Not reported12 of 12
200747,515Not reported12 of 12
200861,276Not reported12 of 12
200964,324Not reported12 of 12
201050,72648.3%12 of 12
201161,73658.7%12 of 12
201246,60844.2%12 of 12
201360,00157.1%12 of 12
201458,87056.0%12 of 12
201544,03841.9%12 of 12
201645,23642.9%12 of 12
201768,22464.9%12 of 12
201850,79948.3%12 of 12
201970,22566.8%12 of 12
202045,80743.5%12 of 12
202152,22049.7%12 of 12
202254,85852.2%12 of 12
202368,56865.2%12 of 12
202462,88359.7%12 of 12
202540,17738.2%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 Hydroelectric4.0January 1925
2Conventional Hydroelectric4.0January 1925
3Conventional Hydroelectric4.0January 1925

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 Erie Boulevard Hydropower LP as the operator, which is not always the owner.

Modeled data

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Analyst and MCP

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Power plants near Deferiet

More plants operated by Erie Boulevard Hydropower LP

Questions about Deferiet

How much power does Deferiet produce?

Deferiet reported 40,177 MWh (40.2 GWh) of net generation in 2025, a 38.2% capacity factor on 12 MW of nameplate capacity.

Where is Deferiet?

Deferiet is in Jefferson County, New York, at 44.0381, −75.6806. It is in the New York Independent System Operator balancing area (NYIS).

Who operates Deferiet?

EIA-860M for August 2026 lists Erie Boulevard Hydropower LP as the operator (EIA operator ID 5914). The operator is not always the owner.

When did Deferiet start operating?

Its first generator began operating in January 1925, according to EIA-860M.

Does InfraMap have power prices for Deferiet?

Yes. InfraMap has NYISO day-ahead and real-time prices at 1 price node linked to Deferiet, 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
  • Plant names from OpenStreetMap, © OpenStreetMap contributors (ODbL)

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