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1389.8 MW Conventional Steam Coal (1276 MW) + Petroleum Liquids (114 MW) operating in Georgetown, SC — South Carolina Public Service Authority
1,389.8 MW
Nameplate Capacity
6
Generators
units
Hybrid (2)
Technology
Conventional Steam Coal + Petroleum Liquids
1975
Operating Since
Coordinates
33.3318, -79.3572
County
Georgetown, SC
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | South Carolina Public Service Authority | South Carolina Public Service Authority | — |
| Owner(s) | South Carolina Public Service Authority | South Carolina Public Service Authority | — |
| Status | Operating | — | — |
The Winyah Generating Station is a 1275.8 MW coal-fired power plant located in Georgetown County, South Carolina. It began operating in 1975 and consists of four generators utilizing conventional steam coal technology. The plant is owned and operated by the South Carolina Public Service Authority (Santee Cooper). Winyah is the second-largest of four coal plants in South Carolina, and ranks 24th out of 50 coal plants nationally.
In the most recent year with available data, Winyah generated 4,216,009 MWh of electricity, operating at a capacity factor of 37.7%. The plant is located within the balancing authority area of the South Carolina Public Service Authority and the NERC region of SERC.
Generated from EIA, GEM, and public data sources
Grid Region
Southeast
Market
SEEM Participant
NERC Region
SERC — SERC Reliability Corporation
Balancing Authority
South Carolina Public Service Authority (SC)
Grid Voltage
230.0 kV
Regulatory Status
RE — Regulated
Entity Type
State
Sector
Electric Utility
436.7K MWh
Latest Month
4.2M MWh
Annual Generation
37.7%
Capacity Factor
CO₂ Intensity
2401 lb/MWh
NOx
1 lb/MWh
SO₂
1 lb/MWh
CH₄
0.273 lb/MWh
N₂O
0.040 lb/MWh
Capacity Factor
24.0%
Annual Net Gen
2647 GWh
CO₂eq
2419 lb/MWh
Subregion
SERC Virginia/Carolina
No financial data available for this plant.
This is a small open-data project — if you have sources or want more coverage here, drop a note.
This plant's balancing authority participates in the Southeast Energy Exchange Market (SEEM). SEEM is a bilateral exchange — no public nodal pricing.
Last updated 2026-04-09
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