ROSEMARY POWER STATION
OperatingNatural Gas power plant
- Capacity
- 180 MW
- Primary fuel
- Natural Gas
- County
- Halifax County
- Operator
- VIRGINIA ELECTRIC & POWER CO
- Status
- Operating
- Commissioned
- 1990
- EIA plant ID
- 50555
- Generators
- 3
- Net generation (2024)
- 15.5 GWh
- Capacity factor (2024, EIA nameplate)
- 1%
- Data vintage
- EIA-860 2024 final; EIA-923 2022-2024 final
- Coordinates
- 36.4517, -77.6594
ROSEMARY POWER STATION, a 180 MW Natural Gas power plant in Halifax County, North Carolina. Operated by VIRGINIA ELECTRIC & POWER CO, commissioned 1990.
How ROSEMARY POWER STATION compares
With 180 MW of capacity, ROSEMARY POWER STATION ranks 24th among the 205 operating power plants Bywatts maps in North Carolina and 9th of the 10 operating Natural Gas plants in the state. It accounts for about 2.1% of North Carolina's operating Natural Gas capacity and 0.6% of all operating capacity in the state. Nationally it is the 559th-largest of the 1,185 operating Natural Gas plants in the database. Commissioned in 1990, it is older than 68% of the 183 operating North Carolina plants with a recorded commissioning year. Its operator, VIRGINIA ELECTRIC & POWER CO, runs 3 operating plants in North Carolina totaling 458 MW. It shares Halifax County with 3 other operating plants, including GASTON and ROANOKE RAPIDS.
Under the same EIA plant code, EIA-860 lists 3 generators at the site with 180 MW of nameplate capacity. Net generation was 15.5 GWh in 2024 (a 1% capacity factor).
Grid neighborhood
The nearest named substation is PLEASANT HILL, about 10.0 miles away; the closest transmission line found within 10 miles is a 230 kV line, about 0.1 miles away. Another 5 operating power plants totaling 313 MW sit within 25 miles; the largest is GASTON (178 MW, Hydro).
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
ROSEMARY POWER STATION is a 180 MW natural gas power plant in Halifax County, NC, operated by VIRGINIA ELECTRIC & POWER CO, commissioned in 1990. Halifax County carries moderate modeled catastrophe exposure in the FEMA National Risk Index, scoring 2.5 of 5 at the 38th national percentile. Hurricane is the leading peril, rated Relatively Moderate by FEMA at the 84th 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.
Halifax County hazard ratings
| Peril | FEMA rating | National percentile | Peril score | Events per year |
|---|---|---|---|---|
| Hurricane | Relatively Moderate | 84th | 4.3 of 5 | 0.20 |
| Winter weather | Relatively High | 60th | 3.4 of 5 | 6.2 |
| Earthquake | Relatively Low | 52nd | 3.1 of 5 | <0.01 |
| Tornado | Relatively Moderate | 51st | 3.1 of 5 | 0.41 |
| Ice storm | Relatively Low | 49th | 3.0 of 5 | 1.1 |
| Hail | Relatively Low | 39th | 2.6 of 5 | 3.0 |
| Riverine flooding | Relatively Moderate | 38th | 2.5 of 5 | 1.2 |
| Heat wave | Relatively Low | 37th | 2.5 of 5 | 7.2 |
| Lightning | Relatively Low | 35th | 2.4 of 5 | 46.3 |
| Wildfire | Very Low | 33rd | 2.3 of 5 | <0.01 |
| Strong wind | Relatively Low | 24th | 1.9 of 5 | 0.72 |
Perils not assessed in Halifax County
These perils carry no usable National Risk Index figure for this county, so they are excluded from the scoring rather than scored zero. A zero would claim the peril was assessed and found benign.
| Peril | Why it is not scored |
|---|---|
| Coastal flooding | FEMA rating is "No Rating" for this county |
Model hail, wind and flood exposure for Halifax County 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.