gridprims

Power plant · EIA plant code 3075

Bonneville

Operator
USACE Northwestern Division
Location
Multnomah, OR (county level only)
Balancing authority
Bonneville Power Administration (BPAT)
Nameplate capacity
1,162 MW
Summer capacity
1,153.9 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
3,721,859 MWh
Capacity factor
36.6%

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 Bonneville
GeneratorTechnologyEnergy sourceNameplateOperating sinceStatus
1Conventional HydroelectricWAT53.5 MW1938Operable · As of September 2026 (EIA-860M): (OA) Out of service but expected to return to service in next calendar year
10Conventional HydroelectricWAT62.1 MW1944Operable · As of September 2026 (EIA-860M): (OP) Operating
11Conventional HydroelectricWAT66.5 MW1982Operable · As of September 2026 (EIA-860M): (OP) Operating
12Conventional HydroelectricWAT66.5 MW1982Operable · As of September 2026 (EIA-860M): (OP) Operating
13Conventional HydroelectricWAT66.5 MW1982Operable · As of September 2026 (EIA-860M): (OP) Operating
14Conventional HydroelectricWAT66.5 MW1982Operable · As of September 2026 (EIA-860M): (OP) Operating
15Conventional HydroelectricWAT66.5 MW1982Operable · As of September 2026 (EIA-860M): (OP) Operating
16Conventional HydroelectricWAT66.5 MW1981Operable · As of September 2026 (EIA-860M): (OP) Operating
17Conventional HydroelectricWAT66.5 MW1981Operable · As of September 2026 (EIA-860M): (OP) Operating
18Conventional HydroelectricWAT66.5 MW1981Operable · As of September 2026 (EIA-860M): (OP) Operating
2Conventional HydroelectricWAT53.5 MW1938Operable · As of September 2026 (EIA-860M): (OA) Out of service but expected to return to service in next calendar year
3Conventional HydroelectricWAT62.1 MW1941Operable · As of September 2026 (EIA-860M): (OP) Operating
4Conventional HydroelectricWAT62.1 MW1941Operable · As of September 2026 (EIA-860M): (OP) Operating
5Conventional HydroelectricWAT62.1 MW1941Operable · As of September 2026 (EIA-860M): (OP) Operating
6Conventional HydroelectricWAT62.1 MW1942Operable · As of September 2026 (EIA-860M): (OP) Operating
7Conventional HydroelectricWAT62.1 MW1943Operable · As of September 2026 (EIA-860M): (OP) Operating
8Conventional HydroelectricWAT62.1 MW1943Operable · As of September 2026 (EIA-860M): (OP) Operating
9Conventional HydroelectricWAT62.1 MW1943Operable · As of September 2026 (EIA-860M): (OA) Out of service but expected to return to service in next calendar year
F1Conventional HydroelectricWAT13.1 MW1982Operable · As of September 2026 (EIA-860M): (OP) Operating
F2Conventional HydroelectricWAT13.1 MW1981Operable · As of September 2026 (EIA-860M): (OA) Out of service but expected to return to service in next calendar year

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

Report a problem

Tell us what looks wrong. The report holds only what you see in the preview below. Nothing is sent until you press Send.

Exactly what will be sent