HSCo CHPRetirement planned
Hartford County, Connecticut · EIA plant ID 57179 · Operator: Cartier Energy, LLC
Nameplate4MWSummer 4 MW
Generators1in service
Net generation28GWh12 mo to Dec 2025
Capacity factor90%gas/coal/oil units, summer MW
Heat rate4,635Btu/kWhfossil units, electric fuel, HHV
First online2009Runs 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) |
|---|---|---|---|
| 2009 | 4.1 | 52.9% | 11,606 |
| 2010 | 27.2 | 88.9% | 11,605 |
| 2011 | 28 | 91.4% | 11,666 |
| 2012 | 28.7 | 93.3% | 11,673 |
| 2013 | 28.9 | 94.1% | 11,675 |
| 2014 | 27.8 | 90.8% | 11,672 |
| 2015 | 26.9 | 87.7% | 11,675 |
| 2016 | 28.8 | 93.8% | 4,610 |
| 2017 | 27.8 | 90.6% | 4,614 |
| 2018 | 26.9 | 87.9% | 4,618 |
| 2019 | 28.1 | 91.8% | 4,613 |
| 2020 | 27.6 | 89.8% | 4,620 |
| 2021 | 27.5 | 89.8% | 4,618 |
| 2022 | 26.5 | 86.3% | 4,624 |
| 2023 | 26.6 | 86.7% | 4,787 |
| 2024 | 27.3 | 88.9% | 4,627 |
| 2025 | 27.7 | 90.2% | 4,635 |
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 |
|---|---|---|---|---|---|---|---|---|
| 1 | Natural Gas Fired Combustion Turbine | GT | 4 | 3.5 | Oct 2009 | Operating · retirement planned | Oct 2039 | coming soon |
Owner / operator
Operator: Cartier Energy, LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Cartier Energy, LLC | 100.0% | 4 MW |
Nearby plants
Within 80 km.
| Hartford Hospital Cogeneration | 12 MW | 0.4 km |
| CT Resource Rec Authority Facility | retired | 1.8 km |
| South Meadow | retired | 1.9 km |
| Capital District Energy Center | retired | 2 km |
| Trinity College Fuel Cell | 1 MW | 2.4 km |
| Pratt & Whitney | 26 MW | 3 km |