JOCASSEE

How JOCASSEE compares

With 612 MW of capacity, JOCASSEE ranks 16th among the 83 operating power plants Bywatts maps in South Carolina and 2nd of the 28 operating Hydro plants in the state. It accounts for about 18% of South Carolina's operating Hydro capacity and 2.6% of all operating capacity in the state. Nationally it is the 37th-largest of the 1,243 operating Hydro plants in the database. Commissioned in 1973, it is older than 59% 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 Pickens County with 2 other operating plants, KEOWEE and CENTRAL ENERGY FACILITY.

EIA-860 lists 4 generators at the site with 774 MW of nameplate capacity, all hydroelectric pumped storage technology (this page's HIFLD capacity figure is 612 MW). The plant was a net consumer of electricity in 2024 (-179 GWh), which is typical of pumped storage. Its generators came online between 1973 and 1975.

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 10 operating power plants totaling 3,960 MW sit within 25 miles; the largest is OCONEE (2,667 MW, Nuclear). Within 50 miles is one mapped data center, Netriplex in Asheville, about 41.7 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