HydroOperatingNYISO

West End Dam Hydroelectric Project

Hydro power plant in Jefferson County, New York. 4.4 MW of nameplate capacity across 2 generators, operated by Relevate Power Management LLC.

Also known as EIA plant 50759

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Carthage Energy LLCLongfalls FacilityTannery Island PowerNY 26 Carthage CSGCarthage BCarthage AWest End Dam Hydroele…2 km
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6 plants within 3.8 km, from EIA coordinates.

Key facts

Capacity
4.4 MWNameplate
Generators
2 operatingEIA-860M, August 2026
Operating since
October 1985First generator online
Operator
Relevate Power Management LLCEIA operator ID 66098
Grid
NYISOBalancing authority NYIS
Price nodes
None linkedNo verified ISO node
Location
Jefferson County, NY43.9829, −75.6206
EIA plant ID
50759EIA plant page

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

How much power West End Dam Hydroelectric Project produces

Free · EIA-923

Net generation, 2025

Not reported

Not reported MWh, final. 0 of 12 months reported

Capacity factor, 2025

Not reported

2024: Not reported

January to July 2026

Not reported

Provisional. 0 of 7 months reported

Range, 2015 to 2023

16.3–25.6

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
2000Not reportedNot reported0 of 12
200121,768Not reported12 of 12
200224,162Not reported12 of 12
200321,424Not reported12 of 12
200423,128Not reported12 of 12
200522,036Not reported12 of 12
200624,748Not reported12 of 12
200717,488Not reported12 of 12
200825,448Not reported12 of 12
200921,988Not reported12 of 12
201020,69253.7%12 of 12
201123,52661.0%12 of 12
201219,51150.5%12 of 12
201324,38563.3%12 of 12
201424,27263.0%12 of 12
201518,26047.4%12 of 12
201620,85354.0%12 of 12
201725,64166.5%12 of 12
201821,43555.6%12 of 12
201924,47063.5%12 of 12
202016,28642.1%12 of 12
202121,37055.4%12 of 12
202217,23444.7%12 of 12
202322,84959.3%12 of 12
2024Not reportedNot reported0 of 12
2025Not reportedNot reported0 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

No verified ISO price node is linked to this plant, or its price history could not load.

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
GEN1Conventional Hydroelectric2.2October 1985
GEN2Conventional Hydroelectric2.2October 1985

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 Relevate Power Management LLC as the operator, which is not always the owner.

Modeled data

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Power plants near West End Dam Hydroelectric Project

More plants operated by Relevate Power Management LLC

Questions about West End Dam Hydroelectric Project

Where is West End Dam Hydroelectric Project?

West End Dam Hydroelectric Project is in Jefferson County, New York, at 43.9829, −75.6206. It is in the New York Independent System Operator balancing area (NYIS).

Who operates West End Dam Hydroelectric Project?

EIA-860M for August 2026 lists Relevate Power Management LLC as the operator (EIA operator ID 66098). The operator is not always the owner.

When did West End Dam Hydroelectric Project start operating?

Its first generator began operating in October 1985, according to EIA-860M.

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)

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