HydroOperatingNYISO

Sewalls

Hydro power plant in Jefferson County, New York. 2 MW of nameplate capacity across 2 generators, operated by Erie Boulevard Hydropower LP.

Also known as Sewalls Power Station · EIA plant 2608

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Beebee Island Hydro PlantWatertownOYA Wayside DriveSt. Lawrence University - SuttonGlen Park Hydroelectric Project2 km
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6 plants within 5.9 km, from EIA coordinates.

Key facts

Capacity
2 MWNameplate
Generators
2 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, NY43.9775, −75.8942
EIA plant ID
2608EIA plant page

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

How much power Sewalls produces

Free · EIA-923

Net generation, 2025

11.7 GWh

11,699 MWh, final

Capacity factor, 2025

66.8%

2024: 85.9%

January to July 2026

Not reported

Provisional. 0 of 7 months reported

Range, 2015 to 2025

6.4–16.0

GWh a year. Low 2015, high 2021

Annual net generation, GWhCapacity factor below each year
Annual net generation from EIA-923
YearNet generation, MWhCapacity factorMonths reported
2000Not reportedNot reported0 of 12
200113,594Not reported12 of 12
200214,055Not reported12 of 12
200315,064Not reported12 of 12
20041,536Not reported12 of 12
200514,444Not reported12 of 12
200616,697Not reported12 of 12
200710,919Not reported12 of 12
200815,157Not reported12 of 12
200913,526Not reported12 of 12
201010,91762.3%12 of 12
201113,68778.1%12 of 12
201210,61460.4%12 of 12
201313,43876.7%12 of 12
201411,13963.6%12 of 12
20156,41336.6%12 of 12
20169,68355.1%12 of 12
201714,00479.9%12 of 12
20187,57943.3%12 of 12
201914,96485.4%12 of 12
202010,20058.1%12 of 12
202116,02491.5%12 of 12
202214,55683.1%12 of 12
202314,62383.5%12 of 12
202415,09585.9%12 of 12
202511,69966.8%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 Hydroelectric1.0January 1925
2Conventional Hydroelectric1.0January 1925

Ownership and offtake

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Pro

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 Sewalls

More plants operated by Erie Boulevard Hydropower LP

Questions about Sewalls

How much power does Sewalls produce?

Sewalls reported 11,699 MWh (11.7 GWh) of net generation in 2025, a 66.8% capacity factor on 2 MW of nameplate capacity.

Where is Sewalls?

Sewalls is in Jefferson County, New York, at 43.9775, −75.8942. It is in the New York Independent System Operator balancing area (NYIS).

Who operates Sewalls?

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 Sewalls start operating?

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

Does InfraMap have power prices for Sewalls?

Yes. InfraMap has NYISO day-ahead and real-time prices at 1 price node linked to Sewalls, 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