MCGUIRE

Operating

Nuclear power plant

Capacity
2,441 MW
Primary fuel
Nuclear
County
Mecklenburg County
Operator
DUKE ENERGY CAROLINAS, LLC
Status
Operating
Commissioned
1981
EIA plant ID
6038
Generators
2
Technology
Nuclear
Net generation (2024)
20,033 GWh
Capacity factor (2024, EIA nameplate)
93%
Data vintage
EIA-860 2024 final; EIA-923 2022-2024 final
Coordinates
35.4324, -80.9486

See it on the map

MCGUIRE, a 2,441 MW Nuclear power plant in Mecklenburg County, North Carolina. Operated by DUKE ENERGY CAROLINAS, LLC, commissioned 1981.

How MCGUIRE compares

With 2,441 MW of capacity, MCGUIRE ranks 2nd among the 205 operating power plants Bywatts maps in North Carolina and is the largest of the 3 operating Nuclear plants in the state. It accounts for about 45% of North Carolina's operating Nuclear capacity and 8.1% of all operating capacity in the state. Nationally it is the 9th-largest of the 55 operating Nuclear plants in the database. Commissioned in 1981, it is older than 74% of the 183 operating North Carolina plants with a recorded commissioning year. Its operator, DUKE ENERGY CAROLINAS, LLC, runs 27 operating plants in North Carolina totaling 13,073 MW. It shares Mecklenburg County with 4 other operating plants, including CORNELIUS DELIVERY NO 1 and HUNTERSVILLE DELIVERY NO 2.

EIA-860 lists 2 generators at the site with 2,441 MW of nameplate capacity, all nuclear technology. Net generation was 20,033 GWh in 2024 (a 93% capacity factor), up 3% from 2022. Its generators came online between 1981 and 1984.

Grid neighborhood

The closest transmission line found within 10 miles is a 230 kV line, under 0.1 miles away. Another 22 operating power plants totaling 4,243 MW sit within 25 miles; the largest is MARSHALL STEAM STATION (1,996 MW, Coal). Within 50 miles are 3 mapped data centers; the nearest is Carolina Internet / CaroNet XB in Charlotte, about 17.5 miles away.

Computed by Bywatts from HIFLD power plant and transmission line records, EIA-860/923 survey data and PeeringDB data center locations; distances are straight-line. Sources and methodology

Weather peril exposure

MCGUIRE is a 2,441 MW nuclear power plant in Mecklenburg County, NC, operated by DUKE ENERGY CAROLINAS, LLC, commissioned in 1981. Mecklenburg County carries moderate modeled catastrophe exposure in the FEMA National Risk Index, scoring 2.0 of 5 at the 24th national percentile. Riverine flooding is the leading peril, rated Relatively High by FEMA at the 75th percentile.

The Bywatts loss layer is calibrated to solar PV hardware, so it is not applied to a nuclear plant. The ratings below are the FEMA National Risk Index county hazard ratings for this location.

2.0 of 5Modeled catastrophe exposure
ModerateExposure band
Riverine floodingLeading peril
Relatively HighFEMA county risk rating

Mecklenburg County hazard ratings

PerilFEMA ratingNational percentilePeril scoreEvents per year
Riverine floodingRelatively High75th4.0 of 53.5
EarthquakeRelatively Moderate61st3.4 of 5<0.01
HurricaneRelatively Moderate57th3.3 of 50.09
Ice stormRelatively High49th2.9 of 52.1
HailRelatively High40th2.6 of 54.8
TornadoRelatively High33rd2.3 of 50.28
LightningRelatively High23rd1.9 of 552.1
Winter weatherRelatively High17th1.7 of 55.3
Heat waveRelatively Moderate12th1.5 of 53.0
WildfireVery Low10th1.4 of 5<0.01
Strong windRelatively High3rd1.1 of 52.7

Perils not assessed in Mecklenburg 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.

PerilWhy it is not scored
Coastal floodingFEMA rating is "Not Applicable" for this county

Model hail, wind and flood exposure for Mecklenburg 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.