UCONN Cogen Facility
Tolland County, Connecticut · EIA plant ID 58159 · Operator: University of Connecticut
Nameplate26MWSummer 25 MW
Generators4in service
Net generation111GWh12 mo to Aug 2026
Capacity factor57%gas/coal/oil units, summer MW
Heat rate5,976Btu/kWhfossil units, electric fuel, HHV
First online2006Runs 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) |
|---|---|---|---|
| 2012 | 123.5 | 58.3% | 11,377 |
| 2013 | 10.2 | 4.8% | 11,725 |
| 2014 | 116.9 | 55.4% | 11,705 |
| 2015 | 112.1 | 53.1% | 11,914 |
| 2016 | 118.2 | 55.9% | 6,003 |
| 2017 | 123.1 | 58.3% | 5,845 |
| 2018 | 122 | 57.8% | 5,996 |
| 2019 | 122 | 57.8% | 6,000 |
| 2020 | 118.8 | 56.1% | 5,992 |
| 2021 | 117.9 | 55.8% | 5,979 |
| 2022 | 117.1 | 55.5% | 5,960 |
| 2023 | 122.1 | 57.9% | 5,971 |
| 2024 | 122.7 | 58.0% | 5,963 |
| 2025 | 110.5 | 51.3% | 5,972 |
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 mo81,720 MMBtu
Last month with liquid burnMay 2026
Switch while operatingYes
Net summer MW on gas19
Net summer MW on oil19
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 |
|---|---|---|---|---|---|---|---|---|
| CGT1 | Natural Gas Fired Combined Cycle | CT | 6.9 | 6.4 | Mar 2006 | Operating | — | coming soon |
| CGT2 | Natural Gas Fired Combined Cycle | CT | 6.9 | 6.9 | Mar 2006 | Operating | — | coming soon |
| CGT3 | Natural Gas Fired Combined Cycle | CT | 6.9 | 6.4 | Mar 2006 | Operating | — | coming soon |
| STG1 | Natural Gas Fired Combined Cycle | CA | 5 | 4.9 | Mar 2006 | Operating | — | coming soon |
Owner / operator
Operator: University of Connecticut. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| University of Connecticut | 100.0% | 26 MW |
Nearby plants
Within 80 km.
| Mansfield Landfill | 2 MW | 6.2 km |
| Willington Solar One, LLC | — | 12.4 km |
| McHenry Solar | 1 MW | 15.1 km |
| Dickinson Solar (CT) | 2 MW | 15.1 km |
| Sydney Solar | 2 MW | 15.3 km |
| Stafford Solar One | 4 MW | 15.7 km |