NRG NORWALK HARBOR
Retired 2013Oil power plant
- Capacity
- 343 MW
- Primary fuel
- Oil
- County
- Western Connecticut Planning Region
- Operator
- NORWALK POWER LLC
- EIA plant ID
- 548
- Coordinates
- 41.0729, -73.4111
NRG NORWALK HARBOR, a retired 343 MW Oil power plant in Western Connecticut Planning Region, Connecticut. It was retired in 2013, according to EIA-860.
How NRG NORWALK HARBOR compares
It was retired in 2013 according to EIA-860, so it is not counted in Connecticut's operating fleet. It shares Western Connecticut Planning Region with 8 other operating plants, including COS COB and WATERSIDE POWER, LLC.
Grid neighborhood
The nearest named substation is 2ND TAXING DISTRICT, about 0.1 miles away; the closest transmission line found within 10 miles is a 115 kV line owned by LONG ISLAND POWER AUTHORITY, about 0.6 miles away. Another 25 operating power plants totaling 5,383 MW sit within 25 miles; the largest is NORTHPORT (1,564 MW, Natural Gas). Within 50 miles are 28 mapped data centers; the nearest is Crown Castle Brentwood (1650 Islip) in Brentwood, about 22.3 miles away.
Computed by Bywatts from HIFLD power plant, substation and transmission line records, EIA-860 retirement records and PeeringDB data center locations; distances are straight-line. Sources and methodology
Weather peril exposure
NRG NORWALK HARBOR is a retired 343 MW oil power plant in Western Connecticut Planning Region, CT, formerly operated by NORWALK POWER LLC. Western Connecticut Planning Region carries moderate modeled catastrophe exposure in the FEMA National Risk Index, scoring 2.0 of 5 at the 25th national percentile. Hurricane is the leading peril, rated Relatively High by FEMA at the 85th 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.
Western Connecticut Planning Region hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Hurricane | Relatively High | 85th | 4.4 of 5 | 0.14 |
| Riverine flooding | Relatively High | 77th | 4.1 of 5 | 3.5 |
| Coastal flooding | Relatively High | 73rd | 3.9 of 5 | 6.2 |
| Earthquake | Relatively Moderate | 64th | 3.6 of 5 | <0.01 |
| Ice storm | Relatively High | 58th | 3.3 of 5 | 1.7 |
| Wildfire | Very Low | 31st | 2.2 of 5 | <0.01 |
| Winter weather | Relatively High | 27th | 2.1 of 5 | 13.6 |
| Strong wind | Relatively High | 17th | 1.7 of 5 | 4.5 |
| Tornado | Relatively Moderate | 17th | 1.7 of 5 | 0.20 |
| Hail | Relatively Low | 3rd | 1.1 of 5 | 2.5 |
| Heat wave | Relatively Moderate | 3rd | 1.1 of 5 | 5.5 |
| Lightning | Relatively Moderate | 2nd | 1.1 of 5 | 28.0 |
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.