Hydro Kennebec Project
Kennebec County, Maine · EIA plant ID 54148 · Operator: Hydro Kennebec LLC
Nameplate15MWSummer 15 MW
Generators2in service
Net generation32GWh12 mo to Dec 2025
Capacity factor24%hydro units, summer MW
Heat rate—thermal plants only
First online1989
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.
Heat rate applies to fuel-burning (thermal) units only.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2001 | 68.1 | 54.5% | — |
| 2002 | 69.5 | 52.9% | — |
| 2003 | 79.8 | 60.7% | — |
| 2004 | 87 | 66.0% | — |
| 2005 | 94.9 | 72.2% | — |
| 2006 | 105 | 79.9% | — |
| 2007 | 89.9 | 68.4% | — |
| 2008 | 109 | 82.8% | — |
| 2009 | 86.1 | 65.5% | — |
| 2010 | 50.3 | 38.3% | — |
| 2011 | 81.5 | 60.4% | — |
| 2012 | 87.3 | 64.5% | — |
| 2013 | 89.9 | 66.6% | — |
| 2014 | 89.4 | 66.3% | — |
| 2015 | 40.7 | 30.1% | — |
| 2016 | 61.1 | 45.2% | — |
| 2017 | 72.6 | 53.8% | — |
| 2018 | 83 | 61.6% | — |
| 2019 | 86 | 63.8% | — |
| 2020 | 64.2 | 47.5% | — |
| 2021 | 32.5 | 24.1% | — |
| 2022 | 46.8 | 34.7% | — |
| 2023 | 69.6 | 51.6% | — |
| 2024 | 27 | 20.0% | — |
| 2025 | 32.4 | 24.0% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| GEN1 | Conventional Hydroelectric | HY | 7.7 | 7.7 | Jan 1989 | Operating | — | coming soon |
| GEN2 | Conventional Hydroelectric | HY | 7.7 | 7.7 | Jan 1989 | Operating | — | coming soon |
Owner / operator
Operator: Hydro Kennebec LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Hydro Kennebec LLC | 100.0% | 15 MW |
Nearby plants
Within 80 km.
| Lockwood Hydroelectric Facility | 7 MW | 2 km |
| Winslow PV - BD Solar 2 LLC | 7 MW | 2.3 km |
| Barefoot Solar | 4 MW | 3.8 km |
| Messalonskee 5 | 2 MW | 4.1 km |
| Solar Mule, LLC | 2 MW | 4.2 km |
| Cenergy - Waterville (CSG) | 5 MW | 4.8 km |