Fore River Generating Station
Norfolk County, Massachusetts · EIA plant ID 55317 · Operator: Calpine Fore River Energy Center, LLC
Nameplate872MWSummer 724 MW
Generators3in service
Net generation2,456GWh12 mo to Aug 2026
Capacity factor39%gas/coal/oil units, summer MW
Heat rate7,402Btu/kWhfossil units, electric fuel, HHV
First online2003Runs as baseload
The 12-month figures include preliminary EIA-923 months, which EIA revises. Final data runs through Dec 2025.
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) |
|---|---|---|---|
| 2002 | 0 | — | — |
| 2003 | 1,841.9 | 73.4% | 7,370 |
| 2004 | 1,645.1 | 28.0% | 7,507 |
| 2005 | 1,713.5 | 29.3% | 7,450 |
| 2006 | 2,408.9 | 41.1% | 7,474 |
| 2007 | 3,463.4 | 57.9% | 7,500 |
| 2008 | 2,968.3 | 49.1% | 7,429 |
| 2009 | 3,174.8 | 52.6% | 7,421 |
| 2010 | 4,247.2 | 70.4% | 7,309 |
| 2011 | 4,781.9 | 79.3% | 7,337 |
| 2012 | 4,048 | 66.9% | 7,316 |
| 2013 | 3,818.1 | 60.0% | 7,390 |
| 2014 | 3,902 | 61.4% | 7,390 |
| 2015 | 3,801.3 | 59.8% | 7,473 |
| 2016 | 3,840.7 | 60.2% | 7,465 |
| 2017 | 4,367.6 | 68.7% | 7,490 |
| 2018 | 3,258 | 51.2% | 7,543 |
| 2019 | 4,403.2 | 69.2% | 7,447 |
| 2020 | 3,324.3 | 52.1% | 7,418 |
| 2021 | 3,511.9 | 55.2% | 7,475 |
| 2022 | 3,396.2 | 53.4% | 7,484 |
| 2023 | 2,207.2 | 34.8% | 7,441 |
| 2024 | 3,259.5 | 51.2% | 7,393 |
| 2025 | 3,105.5 | 49.0% | 7,422 |
Fuel capability
Gas-fired turbines (CT/GT/CA/CS) that can also burn liquid fuel. EIA-860 Schedule 3 for capability, EIA-923 for actual burn.
StatusLikely still dual fuel
Liquid fuel burned · 36 mo2,681,648 MMBtu
Last month with liquid burnFeb 2026
Switch while operatingYes
Net summer MW on gas726
Net summer MW on oil0
Time gas → oilup to 6 h (EIA 6H)
Time oil → gasup to 6 h (EIA 6H)
⚠ EIA-860 vs 923: 923 shows liquid fuel burn but 860 reports 0 MW net summer capacity on oil.
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 |
|---|---|---|---|---|---|---|---|---|
| GT11 | Natural Gas Fired Combined Cycle | CT | 278.6 | 231 | Aug 2003 | Operating | — | coming soon |
| GT12 | Natural Gas Fired Combined Cycle | CT | 278.6 | 231 | Aug 2003 | Operating | — | coming soon |
| ST15 | Natural Gas Fired Combined Cycle | CA | 315 | 262 | Aug 2003 | Operating | — | coming soon |
| GEN1 | — | — | 260 | 260 | planned Sep 2002 | not_current | — | coming soon |
| GEN2 | — | — | 260 | 260 | planned Sep 2002 | not_current | — | coming soon |
| GEN3 | — | — | 280 | 280 | planned Sep 2002 | not_current | — | coming soon |
Owner / operator
Operator: Calpine Fore River Energy Center, LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Calpine Fore River Energy Center, LLC | 100.0% | 872 MW |
Nearby plants
Within 80 km.
| Potter Station 2 | 116 MW | 0.8 km |
| Braintree Landfill Solar | 1 MW | 4.7 km |
| Station 9 Energy Storage System | 2 MW | 6.1 km |
| Boston Scientific Solar | 1 MW | 8 km |
| Hull Wind II | retired | 9.3 km |
| Dorchester Solar Site | 1 MW | 9.3 km |