Bulls Bridge
Litchfield County, Connecticut · EIA plant ID 541 · Operator: FirstLight Power Resources Services LLC
Nameplate7MWSummer 8 MW
Generators6in service
Net generation27GWh12 mo to Dec 2025
Capacity factor37%hydro units, summer MW
Heat rate—thermal plants only
First online1903
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), hydro 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.
Heat rate applies to fuel-burning (thermal) units only.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2001 | 31.1 | 51.9% | — |
| 2002 | 35.3 | 47.9% | — |
| 2003 | 51.1 | 69.4% | — |
| 2004 | 46.6 | 63.2% | — |
| 2005 | 37 | 50.3% | — |
| 2006 | 46.1 | 62.7% | — |
| 2007 | 34.2 | 46.5% | — |
| 2008 | 52 | 70.5% | — |
| 2009 | 54 | 73.4% | — |
| 2010 | 38.3 | 52.1% | — |
| 2011 | 43.4 | 58.9% | — |
| 2012 | 29.8 | 40.4% | — |
| 2013 | 35.4 | 48.2% | — |
| 2014 | 37.9 | 51.5% | — |
| 2015 | 24.4 | 33.1% | — |
| 2016 | 18.7 | 25.3% | — |
| 2017 | 31.9 | 43.4% | — |
| 2018 | 48 | 65.3% | — |
| 2019 | 36.4 | 49.4% | — |
| 2020 | 28.2 | 38.2% | — |
| 2021 | 39.1 | 53.1% | — |
| 2022 | 33.6 | 45.6% | — |
| 2023 | 41.8 | 56.8% | — |
| 2024 | 30.8 | 41.8% | — |
| 2025 | 26.9 | 36.5% | — |
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 | Conventional Hydroelectric | HY | 1.2 | 1.4 | Jan 1903 | Operating | — | coming soon |
| 2 | Conventional Hydroelectric | HY | 1.2 | 1.4 | Jan 1903 | Operating | — | coming soon |
| 3 | Conventional Hydroelectric | HY | 1.2 | 1.4 | Jan 1903 | Operating | — | coming soon |
| 4 | Conventional Hydroelectric | HY | 1.2 | 1.4 | Jan 1903 | Operating | — | coming soon |
| 5 | Conventional Hydroelectric | HY | 1.2 | 1.4 | Jan 1903 | Operating | — | coming soon |
| 6 | Conventional Hydroelectric | HY | 1.2 | 1.4 | Jan 1903 | Operating | — | coming soon |
Owner / operator
Operator: FirstLight Power Resources Services LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| FirstLight Hydro Generating Company | 100.0% | 7 MW |
Nearby plants
Within 80 km.
| Dover CSG | 2 MW | 7.4 km |
| Cricket Valley Energy | 1,313 MW | 7.6 km |
| Rocky River (CT) | 31 MW | 9.7 km |
| Kimberly Clark-Unit 1,2,3 | 36 MW | 13 km |
| New Milford Gas Recovery | 2 MW | 13.6 km |
| Watchtower Educational Center | 2 MW | 19.1 km |