ALGONQUIN WINDSOR LOCKS
OperatingNatural Gas power plant
- Capacity
- 71 MW
- Primary fuel
- Natural Gas
- County
- Capitol Planning Region
- Operator
- ALGONQUIN WINDSOR LOCKS LLC
- Status
- Operating
- Commissioned
- 1990
- EIA plant ID
- 10567
- Generators
- 3
- Technology
- Natural Gas Fired Combined Cycle
- Net generation (2024)
- 130 GWh
- Capacity factor (2024, EIA nameplate)
- 21%
- Data vintage
- EIA-860 2024 final; EIA-923 2022-2024 final
- Coordinates
- 41.9227, -72.6255
ALGONQUIN WINDSOR LOCKS, a 71 MW Natural Gas power plant in Capitol Planning Region, Connecticut. Operated by ALGONQUIN WINDSOR LOCKS LLC, commissioned 1990.
How ALGONQUIN WINDSOR LOCKS compares
With 71 MW of capacity, ALGONQUIN WINDSOR LOCKS ranks 17th among the 68 operating power plants Bywatts maps in Connecticut and 8th of the 13 operating Natural Gas plants in the state. It accounts for about 2.1% of Connecticut's operating Natural Gas capacity and 0.8% of all operating capacity in the state. Nationally it is the 747th-largest of the 1,185 operating Natural Gas plants in the database. Commissioned in 1990, it is older than 57% of the 66 operating Connecticut plants with a recorded commissioning year. It shares Capitol Planning Region with 9 other operating plants, including PRATT & WHITNEY and UCONN COGEN FACILITY.
EIA-860 lists 3 generators at the site with 71 MW of nameplate capacity, all natural gas fired combined cycle technology. Net generation was 130 GWh in 2024 (a 21% capacity factor), down 3% from 2022. Its generators came online between 1990 and 2012.
Grid neighborhood
The nearest named substation is WINDSOR LOCKS, about 0.3 miles away; the closest transmission line found within 10 miles is a 115 kV line owned by CONNECTICUT LIGHT & POWER CO, about 0.3 miles away. Another 32 operating power plants totaling 1,316 MW sit within 25 miles; the largest is STONY BROOK (535 MW, Natural Gas).
Computed by Bywatts from HIFLD power plant, substation and transmission line records and EIA-860/923 survey data; distances are straight-line. Sources and methodology
Weather peril exposure
ALGONQUIN WINDSOR LOCKS is a 71 MW natural gas power plant in Capitol Planning Region, CT, operated by ALGONQUIN WINDSOR LOCKS LLC, commissioned in 1990. Capitol Planning Region carries low modeled catastrophe exposure in the FEMA National Risk Index, scoring 1.5 of 5 at the 13th national percentile. Riverine flooding is the leading peril, rated Relatively High by FEMA at the 78th percentile.
The Bywatts loss layer is calibrated to solar PV hardware, so it is not applied to a natural gas plant. The ratings below are the FEMA National Risk Index county hazard ratings for this location.
Capitol Planning Region hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Riverine flooding | Relatively High | 78th | 4.1 of 5 | 3.5 |
| Hurricane | Relatively High | 72nd | 3.9 of 5 | 0.15 |
| Earthquake | Relatively Moderate | 61st | 3.4 of 5 | <0.01 |
| Ice storm | Very High | 50th | 3.0 of 5 | 2.5 |
| Coastal flooding | Very Low | 36th | 2.4 of 5 | 3.7 |
| Tornado | Relatively High | 26th | 2.0 of 5 | 0.33 |
| Wildfire | Very Low | 26th | 2.0 of 5 | <0.01 |
| Hail | Relatively Moderate | 22nd | 1.9 of 5 | 2.6 |
| Winter weather | Relatively High | 17th | 1.7 of 5 | 15.9 |
| Heat wave | Relatively Moderate | 9th | 1.4 of 5 | 6.7 |
| Lightning | Relatively High | 8th | 1.3 of 5 | 26.5 |
| Strong wind | Relatively Moderate | 4th | 1.2 of 5 | 2.2 |
Model hail, wind and flood exposure for Capitol Planning Region in the weather risk calculator
Ratings are the FEMA National Risk Index county hazard ratings; the peril score is a Bywatts transform of the FEMA national percentile. Full data sources and the solar vulnerability methodology are in the weather risk calculator.
Modeled estimate for screening and negotiation. Built from FEMA National Risk Index county hazard data and a solar vulnerability layer documented above. Not a quote, a binder, or actuarial advice, and not a substitute for a carrier's own model. Hazard data: FEMA National Risk Index December 2025, synced 2026-07-24. Resolution is county level, not site level.