Power plant · EIA plant code 54134
Great Lakes Hydro America - ME
- Operator
- Great Lakes Hydro America LLC
- Location
- Penobscot, ME (county level only)
- Balancing authority
- ISO New England Inc. (ISNE)
- Nameplate capacity
- 158 MW
- Summer capacity
- 153.1 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Generator Report (Form EIA-860) · data for 2025 · as of Sep 10, 2026 · retrieved Oct 31, 2026 · CC-BY-4.0 May be out of date. The next release was due by Sep 10, 2027. Last checked for an update: Oct 31, 2026.
Generation in 2025
- Net generation
- 500,122 MWh
- Capacity factor
- 36.1%
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Plant Operations Report (Form EIA-923) · data for 2025 · as of Sep 11, 2026 · retrieved Oct 31, 2026 · CC-BY-4.0 May be out of date. The next release was due by Sep 11, 2027. Last checked for an update: Oct 31, 2026.
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Resource Integrated Database (eGRID) · data for 2023 · as of Jun 16, 2025 · retrieved Oct 31, 2026 · CC-BY-4.0 May be out of date. The next release was due by Jan 31, 2026. Last checked for an update: Oct 31, 2026.
Generators
| Generator | Technology | Energy source | Nameplate | Operating since | Status |
|---|---|---|---|---|---|
| BES1 | Batteries | MWH | 10 MW | 2020 | Operable · As of September 2026 (EIA-860M): (OP) Operating |
| BES2 | Batteries | MWH | 10 MW | 2020 | Operable · As of September 2026 (EIA-860M): (OP) Operating |
| DOH2 | Conventional Hydroelectric | WAT | 1.3 MW | 1925 | Operable · As of September 2026 (EIA-860M): (OS) Out of service and NOT expected to return to service in next calendar year |
| DOH3 | Conventional Hydroelectric | WAT | 1.3 MW | 1925 | Operable · As of September 2026 (EIA-860M): (OS) Out of service and NOT expected to return to service in next calendar year |
| DOH4 | Conventional Hydroelectric | WAT | 1.8 MW | 1925 | Operable · As of September 2026 (EIA-860M): (OS) Out of service and NOT expected to return to service in next calendar year |
| DOH5 | Conventional Hydroelectric | WAT | 5.3 MW | 1988 | Operable · As of September 2026 (EIA-860M): (OP) Operating |
| DOH6 | Conventional Hydroelectric | WAT | 4.1 MW | 1975 | Operable · As of September 2026 (EIA-860M): (OP) Operating |
| DOH7 | Conventional Hydroelectric | WAT | 4.1 MW | 1975 | Operable · As of September 2026 (EIA-860M): (OP) Operating |
| DOH8 | Conventional Hydroelectric | WAT | 3 MW | 1930 | Operable · As of September 2026 (EIA-860M): (OP) Operating |
| EMH1 | Conventional Hydroelectric | WAT | 1.6 MW | 1948 | Operable · As of September 2026 (EIA-860M): (OP) Operating |
| EMH2 | Conventional Hydroelectric | WAT | 1.6 MW | 1948 | Operable · As of September 2026 (EIA-860M): (OP) Operating |
| EMH3 | Conventional Hydroelectric | WAT | 1.6 MW | 1948 | Operable · As of September 2026 (EIA-860M): (OP) Operating |
| EMH4 | Conventional Hydroelectric | WAT | 1.6 MW | 1948 | Operable · As of September 2026 (EIA-860M): (OP) Operating |
| EMH5 | Conventional Hydroelectric | WAT | 1.6 MW | 1948 | Operable · As of September 2026 (EIA-860M): (OP) Operating |
| EMH6 | Conventional Hydroelectric | WAT | 1.6 MW | 1948 | Operable · As of September 2026 (EIA-860M): (OP) Operating |
| MCH1 | Conventional Hydroelectric | WAT | 12.2 MW | 1953 | Operable · As of September 2026 (EIA-860M): (OP) Operating |
| MCH2 | Conventional Hydroelectric | WAT | 12.2 MW | 1953 | Operable · As of September 2026 (EIA-860M): (OP) Operating |
| MCH3 | Conventional Hydroelectric | WAT | 13.2 MW | 1967 | Operable · As of September 2026 (EIA-860M): (OP) Operating |
| MIH2 | Conventional Hydroelectric | WAT | 5.5 MW | 1917 | Operable · As of September 2026 (EIA-860M): (OS) Out of service and NOT expected to return to service in next calendar year |
| MIH3 | Conventional Hydroelectric | WAT | 5.5 MW | 1917 | Operable · As of September 2026 (EIA-860M): (OP) Operating |
| MIH4 | Conventional Hydroelectric | WAT | 5.1 MW | 1917 | Operable · As of September 2026 (EIA-860M): (OP) Operating |
| MIH5 | Conventional Hydroelectric | WAT | 5.1 MW | 1921 | Operable · As of September 2026 (EIA-860M): (OP) Operating |
| MIH6 | Conventional Hydroelectric | WAT | 5.1 MW | 1921 | Operable · As of September 2026 (EIA-860M): (OP) Operating |
| MIH7 | Conventional Hydroelectric | WAT | 4 MW | 1921 | Operable · As of September 2026 (EIA-860M): (OP) Operating |
| MIH8 | Conventional Hydroelectric | WAT | 5.4 MW | 1987 | Operable · As of September 2026 (EIA-860M): (OP) Operating |
| MIHI | Conventional Hydroelectric | WAT | 5.4 MW | 1987 | Operable · As of September 2026 (EIA-860M): (OP) Operating |
| NOH1 | Conventional Hydroelectric | WAT | 3.2 MW | 1986 | Operable · As of September 2026 (EIA-860M): (OP) Operating |
| NOH2 | Conventional Hydroelectric | WAT | 3.2 MW | 1986 | Operable · As of September 2026 (EIA-860M): (OP) Operating |
| NOH3 | Conventional Hydroelectric | WAT | 3.2 MW | 1986 | Operable · As of September 2026 (EIA-860M): (OP) Operating |
| WEH1 | Conventional Hydroelectric | WAT | 4.8 MW | 1940 | Operable · As of September 2026 (EIA-860M): (OP) Operating |
| WEH2 | Conventional Hydroelectric | WAT | 4.8 MW | 1940 | Operable · As of September 2026 (EIA-860M): (OP) Operating |
| WEH3 | Conventional Hydroelectric | WAT | 4.8 MW | 1940 | Operable · As of September 2026 (EIA-860M): (OP) Operating |
| WEH4 | Conventional Hydroelectric | WAT | 4.8 MW | 1940 | Operable · 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 May be out of date. The next release was due by Nov 23, 2026. Last checked for an update: Oct 31, 2026.