Mechanic Falls
Androscoggin County, Maine · EIA plant ID 54123 · Operator: KEI (Maine) Power Management (IV) LLC
Nameplate1MWSummer 1 MW
Generators2in service
Net generation2GWh12 mo to Dec 2025
Capacity factor15%hydro units, summer MW
Heat rate—thermal plants only
First online1986
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 | 1.8 | 17.0% | — |
| 2002 | 1.8 | 16.5% | — |
| 2003 | 2.6 | 24.1% | — |
| 2004 | 2.3 | 21.2% | — |
| 2005 | 2.4 | 22.2% | — |
| 2006 | 3.7 | 33.7% | — |
| 2007 | 2.9 | 27.9% | — |
| 2008 | 2.6 | 25.0% | — |
| 2009 | 3.6 | 33.9% | — |
| 2010 | 3.7 | 30.5% | — |
| 2011 | 3.8 | 31.2% | — |
| 2012 | 3.3 | 26.5% | — |
| 2013 | 3.8 | 30.8% | — |
| 2014 | 3.1 | 25.2% | — |
| 2015 | 2.4 | 19.3% | — |
| 2016 | 2.4 | 19.2% | — |
| 2017 | 2.3 | 18.5% | — |
| 2018 | 1.8 | 14.8% | — |
| 2019 | 0 | 0.0% | — |
| 2020 | 0.4 | 3.0% | — |
| 2021 | 1.7 | 13.6% | — |
| 2022 | 2.5 | 20.1% | — |
| 2023 | 3 | 24.4% | — |
| 2024 | 1.9 | 15.4% | — |
| 2025 | 1.9 | 15.3% | — |
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 | 1 | 1 | Apr 1986 | Operating | — | coming soon |
| GEN2 | Conventional Hydroelectric | HY | 0.4 | 0.4 | Apr 1986 | Operating | — | coming soon |
Owner / operator
Operator: KEI (Maine) Power Management (IV) LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| KEI (Maine) Power Management (IV) LLC | 100.0% | 1 MW |
Nearby plants
Within 80 km.
| SP-339 Mechanic Falls | 1 MW | 1.8 km |
| Oxford PV - BD Solar Oxford LLC | 9 MW | 8.1 km |
| Lewiston Junction Road Solar | 5 MW | 9.5 km |
| Oxford Solar, LLC | 2 MW | 9.6 km |
| Lewiston Jn PV - BD Solar Lewiston Jn LLC | — | 9.9 km |
| Auburn PV - BD Solar Auburn LLC | — | 9.9 km |