gridprims

Power plant · EIA plant code 1510

Williams Hydro

Operator
Brookfield White Pine Hydro LLC
Location
Somerset, ME (county level only)
Balancing authority
ISO New England Inc. (ISNE)
Nameplate capacity
13 MW
Summer capacity
14.9 MW

U.S. Energy Information Administration · Annual Electric Generator Report (Form EIA-860) · data for 2025 · as of Sep 10, 2026 · retrieved Oct 31, 2026 · CC-BY-4.0

Generation in 2025

Net generation
63,509 MWh
Capacity factor
55.8%

Capacity factor is net generation divided by nameplate capacity times the hours each generator was in service that year, counted by month.

U.S. Energy Information Administration · Power Plant Operations Report (Form EIA-923) · data for 2025 · as of Sep 11, 2026 · retrieved Oct 31, 2026 · CC-BY-4.0

Emissions

eGRID2023 (revision 2) reports no carbon dioxide for this plant.

Emissions are for 2023, the newest eGRID year. Generation is for 2025, the newest EIA-923 year.

U.S. Environmental Protection Agency · Emissions & Generation Resource Integrated Database (eGRID) · data for 2023 · as of Jun 16, 2025 · retrieved Oct 31, 2026 · CC-BY-4.0

Generators

Generators at Williams Hydro
GeneratorTechnologyEnergy sourceNameplateOperating sinceStatus
WI1Conventional HydroelectricWAT7 MW1939Operable · As of September 2026 (EIA-860M): (OP) Operating
WI2Conventional HydroelectricWAT6 MW1950Operable · As of September 2026 (EIA-860M): (OP) Operating

U.S. Energy Information Administration · Monthly Update to the Annual Electric Generator Report (Form EIA-860M) · data for 2026-09 · as of Oct 23, 2026 · retrieved Oct 31, 2026 · CC-BY-4.0

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