CATAWBA

How CATAWBA compares

With 2,410 MW of capacity, CATAWBA ranks 2nd among the 83 operating power plants Bywatts maps in South Carolina and 2nd of the 4 operating Nuclear plants in the state. It accounts for about 35% of South Carolina's operating Nuclear capacity and 10% of all operating capacity in the state. Nationally it is the 11th-largest of the 55 operating Nuclear plants in the database. Commissioned in 1985, it is newer than 47% of the 82 operating South Carolina plants with a recorded commissioning year. Its operator, DUKE ENERGY CAROLINAS, LLC, runs 15 operating plants in South Carolina totaling 8,471 MW. It shares York County with 3 other operating plants, including WYLIE and SEDIVER.

EIA-860 lists 2 generators at the site with 2,410 MW of nameplate capacity, all nuclear technology. Net generation was 18,466 GWh in 2024 (an 87% capacity factor), down 3% from 2022. Its generators came online between 1985 and 1986.

Grid neighborhood

The closest transmission line found within 10 miles is a 230 kV line owned by DUKE ENERGY CAROLINAS, LLC, under 0.1 miles away. Another 16 operating power plants totaling 1,710 MW sit within 25 miles; the largest is MILL CREEK (799 MW, Natural Gas). Within 50 miles are 2 mapped data centers; the nearest is Carolina Internet / CaroNet in Charlotte, about 11.7 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