Mass Inst Tech Cntrl Utilities/Cogen Plt
Middlesex County, Massachusetts · EIA plant ID 54907 · Operator: Massachusetts Inst of Tech
×21 MW natural gas retired since 2020 (latest Apr 2021)
Nameplate43MWSummer 35 MW
Generators2in service
Net generation209GWh12 mo to Dec 2025
Capacity factor68%gas/coal/oil units, summer MW
Heat rate4,499Btu/kWhfossil units, electric fuel, HHV
First online2021Runs as baseload
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 | 130.9 | 78.7% | 4,808 |
| 2002 | 127.8 | 76.8% | 14,056 |
| 2003 | 141.9 | 85.2% | 13,963 |
| 2004 | 153.5 | 92.0% | 13,963 |
| 2005 | 162.2 | 97.4% | 13,963 |
| 2006 | 156.7 | 94.2% | 13,963 |
| 2007 | 130.5 | 78.4% | 13,963 |
| 2008 | 146.3 | 87.6% | 13,911 |
| 2009 | 169.7 | 102.0% | 13,911 |
| 2010 | 142.5 | 85.6% | 13,932 |
| 2011 | 135.9 | 81.6% | 13,962 |
| 2012 | 132.6 | 79.4% | 13,963 |
| 2013 | 129 | 77.5% | 13,963 |
| 2014 | 131.2 | 78.8% | 13,762 |
| 2015 | 113.5 | 68.2% | 13,609 |
| 2016 | 105.5 | 63.2% | 4,489 |
| 2017 | 62.3 | 37.4% | 4,581 |
| 2018 | 112 | 67.3% | 4,581 |
| 2019 | 93.7 | 56.3% | 4,581 |
| 2020 | 79.6 | 47.7% | 4,489 |
| 2021 | 80.9 | 29.5% | 6,674 |
| 2022 | 209.7 | 67.6% | 4,514 |
| 2023 | 204.5 | 66.0% | 4,518 |
| 2024 | 204.8 | 65.9% | 4,519 |
| 2025 | 209.4 | 67.5% | 4,499 |
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 mo1,577 MMBtu
Last month with liquid burnDec 2025
Switch while operatingYes
Net summer MW on gas35
Net summer MW on oil35
Time gas → oilup to 1 h (EIA 1H)
Time oil → gasup to 1 h (EIA 1H)
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 |
|---|---|---|---|---|---|---|---|---|
| GT200 | Natural Gas Fired Combustion Turbine | GT | 21.7 | 17.7 | Apr 2021 | Operating | — | coming soon |
| GT300 | Natural Gas Fired Combustion Turbine | GT | 21.7 | 17.7 | Apr 2021 | Operating | — | coming soon |
| CTG1 | Natural Gas Fired Combustion Turbine | GT | 21.2 | 19 | Jun 1995 | Retired Apr 2021 | — | coming soon |
Owner / operator
Operator: Massachusetts Inst of Tech. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Massachusetts Inst of Tech | 100.0% | 43 MW |
Nearby plants
Within 80 km.
| Kendall Square Station | 235 MW | 1.2 km |
| CoreSite - Somerville | 4 MW | 2.1 km |
| Medical Area Total Energy Plant | 95 MW | 2.9 km |
| Boston Medical Center CHP Plant | 3 MW | 3.3 km |
| Gillette SBMC | 14 MW | 3.7 km |
| Charlestown Wind Turbine | 2 MW | 3.9 km |