MONTVILLE STATION
OperatingOil power plant
- Capacity
- 495 MW
- Primary fuel
- Oil
- County
- Southeastern Connecticut Planning Region
- Operator
- NRG MONTVILLE OPERATIONS INC
- Status
- Operating
- Commissioned
- 1954
- EIA plant ID
- 546
- Generators
- 4
- Technology
- Petroleum Liquids
- Net generation (2024)
- 27.8 GWh
- Capacity factor (2024, EIA nameplate)
- 0.6%
- Data vintage
- EIA-860 2024 final; EIA-923 2022-2024 final
- Coordinates
- 41.4277, -72.1009
MONTVILLE STATION, a 495 MW Oil power plant in Southeastern Connecticut Planning Region, Connecticut.
How MONTVILLE STATION compares
With 495 MW of capacity, MONTVILLE STATION ranks 9th among the 68 operating power plants Bywatts maps in Connecticut and 2nd of the 10 operating Oil plants in the state. It accounts for about 30% of Connecticut's operating Oil capacity and 5.3% of all operating capacity in the state. Nationally it is the 13th-largest of the 544 operating Oil plants in the database. Commissioned in 1954, it is older than 84% of the 66 operating Connecticut plants with a recorded commissioning year. It shares Southeastern Connecticut Planning Region with 19 other operating plants, including MILLSTONE and PFIZER GROTON PLANT.
EIA-860 lists 4 generators at the site with 495 MW of nameplate capacity, mainly petroleum liquids technology. Net generation was 27.8 GWh in 2024 (a 0.6% capacity factor). Its generators came online between 1954 and 1971.
Grid neighborhood
The nearest named substation is MONTVILLE (345 kV), about 0.2 miles away; the closest transmission line found within 10 miles is a 115 kV line, under 0.1 miles away. Another 19 operating power plants totaling 2,330 MW sit within 25 miles; the largest is MILLSTONE (2,163 MW, Nuclear).
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
MONTVILLE STATION is a 495 MW oil power plant in Southeastern Connecticut Planning Region, CT, operated by NRG MONTVILLE OPERATIONS INC, commissioned in 1954. Southeastern Connecticut Planning Region carries moderate modeled catastrophe exposure in the FEMA National Risk Index, scoring 2.1 of 5 at the 28th national percentile. Hurricane is the leading peril, rated Relatively High by FEMA at the 87th percentile.
The Bywatts loss layer is calibrated to solar PV hardware, so it is not applied to an oil plant. The ratings below are the FEMA National Risk Index county hazard ratings for this location.
Southeastern Connecticut Planning Region hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Hurricane | Relatively High | 87th | 4.5 of 5 | 0.19 |
| Coastal flooding | Relatively Moderate | 60th | 3.4 of 5 | 3.7 |
| Riverine flooding | Relatively Moderate | 58th | 3.3 of 5 | 2.3 |
| Earthquake | Relatively Low | 52nd | 3.1 of 5 | <0.01 |
| Ice storm | Relatively Moderate | 41st | 2.6 of 5 | 1.7 |
| Wildfire | Very Low | 22nd | 1.9 of 5 | <0.01 |
| Tornado | Relatively Low | 21st | 1.8 of 5 | 0.16 |
| Winter weather | Relatively Moderate | 20th | 1.8 of 5 | 13.3 |
| Lightning | Relatively Moderate | 11th | 1.4 of 5 | 23.2 |
| Strong wind | Relatively Moderate | 10th | 1.4 of 5 | 1.6 |
| Heat wave | Relatively Low | 6th | 1.2 of 5 | 4.5 |
| Hail | Relatively Low | 2nd | 1.1 of 5 | 1.7 |
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.