Rumford Power LLC
Oxford County, Maine · EIA plant ID 55100 · Operator: Rumford Power
Nameplate275MWSummer 254 MW
Generators2in service
Net generation793GWh12 mo to Dec 2025
Capacity factor36%gas/coal/oil units, summer MW
Heat rate7,466Btu/kWhfossil units, electric fuel, HHV
First online2000Runs as intermediate
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), gas/coal/oil 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 | 1,781.5 | — | — |
| 2002 | 1,832.4 | — | — |
| 2003 | 1,499.4 | 67.4% | 7,259 |
| 2004 | 1,625.6 | 72.9% | 7,317 |
| 2005 | 990.8 | 44.5% | 7,284 |
| 2006 | 459.5 | 20.6% | 7,412 |
| 2007 | 658.9 | 29.6% | 7,578 |
| 2008 | 909.4 | 40.8% | 7,588 |
| 2009 | 488.3 | 21.9% | 7,793 |
| 2010 | 511.9 | 23.0% | 7,716 |
| 2011 | 411.8 | 18.5% | 7,737 |
| 2012 | 363.8 | 16.3% | 7,728 |
| 2013 | 170.1 | 7.6% | 8,159 |
| 2014 | 401 | 18.0% | 7,721 |
| 2015 | 283.2 | 12.7% | 7,647 |
| 2016 | 413.2 | 18.5% | 7,547 |
| 2017 | 232.6 | 10.4% | 7,652 |
| 2018 | 150.4 | 6.8% | 7,776 |
| 2019 | 62.4 | 2.8% | 7,976 |
| 2020 | 162 | 7.3% | 7,779 |
| 2021 | 324.6 | 14.6% | 7,548 |
| 2022 | 428.1 | 19.5% | 7,551 |
| 2023 | 403.4 | 18.3% | 7,451 |
| 2024 | 637.7 | 28.6% | 7,321 |
| 2025 | 792.6 | 35.6% | 7,466 |
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 |
|---|---|---|---|---|---|---|---|---|
| UNT1 | Natural Gas Fired Combined Cycle | CT | 179.4 | 167.8 | Jul 2000 | Operating | — | coming soon |
| UNT2 | Natural Gas Fired Combined Cycle | CA | 95.1 | 86 | Jul 2000 | Operating | — | coming soon |
Owner / operator
Operator: Rumford Power. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Rumford Power | 100.0% | 275 MW |
Nearby plants
Within 80 km.
| Rumford ESS | 5 MW | 0.3 km |
| Mainely Solar (Wyman Hill Solar LLC) | 4 MW | 1.4 km |
| Mead Rumford Cogen | retired | 2.5 km |
| Rumford Cogeneration | 103 MW | 2.8 km |
| Rumford Falls Hydro Facility | 53 MW | 8.7 km |
| RoxWind | 15 MW | 12.1 km |