Anson Abenaki Hydros
Somerset County, Maine · EIA plant ID 10186 · Operator: Eagle Creek RE LLC
Nameplate29MWSummer 25 MW
Generators13in service
Net generation101GWh12 mo to Dec 2025
Capacity factor46%hydro units, summer MW
Heat rate—Btu/kWhfossil units, electric fuel, HHV
First online1950
Monthly net generation
EIA-923, all units at the plant. Net of station use; storage can go negative.
FinalPreliminary
Capacity factor by year
Net MWh ÷ (summer MW × hours), hydro units. Each year uses that year's EIA-860 ratings; the hollow dot is the latest 12 months.
Heat rate by year
Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2001 | 116.4 | 51.9% | — |
| 2002 | 117.7 | 51.8% | — |
| 2003 | 134 | 60.3% | 26,229 |
| 2004 | 147.6 | 66.9% | 5,778 |
| 2005 | 161.9 | 73.9% | 5,778 |
| 2006 | 167.9 | 76.7% | 5,778 |
| 2007 | 165.3 | 75.4% | 5,778 |
| 2008 | 179 | 77.3% | 5,778 |
| 2009 | 180.8 | 75.9% | 5,778 |
| 2010 | 156.1 | 66.1% | 5,778 |
| 2011 | 156.3 | 69.5% | 5,778 |
| 2012 | 145.6 | 61.3% | 5,298 |
| 2013 | 146.9 | 63.4% | 5,778 |
| 2014 | 137 | 58.7% | 5,778 |
| 2015 | 134.1 | 59.7% | 5,778 |
| 2016 | 108.3 | 48.9% | 4,344 |
| 2017 | 131.9 | 60.0% | — |
| 2018 | 133.2 | 60.6% | — |
| 2019 | 129.9 | 59.1% | — |
| 2020 | 117.6 | 53.4% | — |
| 2021 | 91.3 | 41.5% | — |
| 2022 | 125.6 | 57.1% | — |
| 2023 | 145.1 | 66.0% | — |
| 2024 | 116.3 | 52.8% | — |
| 2025 | 100.6 | 45.8% | — |
Generators
EIA-860 (annual) with EIA-860M updates through Sep 2026. EIA-923 reports generation by plant, prime mover and fuel, not by unit, so unit-level output isn't shown.
| Gen ID | Technology | Prime mover | Nameplate MW | Summer MW | Online | Status | Planned retirement | OEM / model |
|---|---|---|---|---|---|---|---|---|
| AB1 | Conventional Hydroelectric | HY | 3 | 2.2 | May 1983 | Operating | — | coming soon |
| AB2 | Conventional Hydroelectric | HY | 2.7 | 2.2 | Sep 1980 | Operating | — | coming soon |
| AB3 | Conventional Hydroelectric | HY | 3 | 2.2 | Apr 1983 | Operating | — | coming soon |
| AB4 | Conventional Hydroelectric | HY | 3 | 2.2 | Apr 1983 | Operating | — | coming soon |
| AB5 | Conventional Hydroelectric | HY | 2.5 | 2.2 | Jul 1961 | Operating | — | coming soon |
| AB6 | Conventional Hydroelectric | HY | 3 | 2.6 | Apr 2008 | Operating | — | coming soon |
| AB7 | Conventional Hydroelectric | HY | 2.5 | 2.2 | Jan 1950 | Operating | — | coming soon |
| AB8 | Conventional Hydroelectric | HY | 0.3 | 0.3 | Aug 1989 | Operating | — | coming soon |
| AN1 | Conventional Hydroelectric | HY | 1.8 | 1.8 | Sep 1984 | Operating | — | coming soon |
| AN2 | Conventional Hydroelectric | HY | 1.8 | 1.8 | Sep 1984 | Operating | — | coming soon |
| AN3 | Conventional Hydroelectric | HY | 1.8 | 1.8 | Sep 1984 | Operating | — | coming soon |
| AN4 | Conventional Hydroelectric | HY | 1.8 | 1.8 | Sep 1984 | Operating | — | coming soon |
| AN5 | Conventional Hydroelectric | HY | 1.8 | 1.8 | Sep 1984 | Operating | — | coming soon |
| STG1 | Natural Gas Steam Turbine | ST | 3 | 2 | Aug 1994 | Retired May 2016 | — | coming soon |
Owner / operator
Operator: Eagle Creek RE LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Eagle Creek Madison Hydro, LLC | 100.0% | 29 MW |
Nearby plants
Within 80 km.
| Madison ESS | 5 MW | 1 km |
| Madison BTM | 2 MW | 3.7 km |
| IOS - MEW Phase 1 | 4 MW | 3.9 km |
| Dairy Farm | 4 MW | 4.4 km |
| BNRG North Anson (CSG) | 2 MW | 6.5 km |
| BNRG Norridgewock (CSG) | 2 MW | 10.8 km |