Williams — Plant Summary
- EIA Plant ID
- 3298
- Capacity
- 659.7 MW
- Primary Fuel
- Coal
- Technology
- Conventional Steam Coal
- Status
- Operating
- Location
- Berkeley, SC
- Operating Since
- 1973
- Generators
- 1
- Operator
- South Carolina Genertg Co, Inc
- Parent Company
- —
- Annual Generation
- 2,447,008 MWh
- Capacity Factor
- 42.3%
- Balancing Authority
- Dominion Energy South Carolina
- ISO/RTO
- —
- NERC Region
- SERC
Williams
OperatingBit. Coal
Ranked #4 of 4 Bit. Coal plants in SC#45 of 66 nationally
659.7 MW Bit. Coal operating in Berkeley, SC — Dominion Energy South Carolina
EIAWD
659.7 MW
Nameplate Capacity
1
Generators
unit
Conventional Steam Coal
Technology
1973
Operating Since
Location
Coordinates
33.0158, -79.9297
County
Berkeley, SC
Nearby Plants
- Bushy Park Combustion Turbine FacilityNatural Gas65.4 MW · 0.1 km
- Berkeley County LandfillLandfill Gas3.2 MW · 15.0 km
- HagoodNatural Gas177.3 MW · 21.3 km
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | South Carolina Genertg Co, Inc | — | — |
| Owner(s) | South Carolina Genertg Co, Inc | — | — |
| Status | Operating | — | — |
Ownership Chain
No GEM tracker match for this plant — ownership chain unavailable.
About
The Williams power plant is a 659.7 MW coal-fired generating station located in Berkeley County, South Carolina. The plant began operating in 1973 and utilizes conventional steam coal technology. It is owned and operated by South Carolina Generating Company, Inc. The plant has one generator. Williams operates within the Dominion Energy South Carolina balancing authority and the SERC NERC region.
In the most recent year of record, the plant generated 2,447,008 MWh of electricity, resulting in a capacity factor of 42.3%. The plant's installed cost was $1232.29 per kW, according to FERC data. Williams is the fourth-largest power plant in South Carolina, and ranks 38th out of 50 coal plants nationally.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
SERC
Balancing Authority
Dominion Energy South Carolina
Grid Voltage
230 kV
Regulatory Status
RE
Entity Type
Investor-Owned Utility
Sector
Electric Utility
Generation
226.1K MWh
Latest Month
2.4M MWh
Annual Generation
42.3%
Capacity Factor
Jan 2023 – Dec 2025
Financial DataBeta
Source: FERC Form 1HIGH
$1,220/kW
Installed Cost
$63.9/MWh
Operating Cost
South Carolina Generating Company, Inc.
Reporting Utility
Annual Capital & Operating Expenses
Cumulative Installed Cost
Per-Unit Cost Trends
Pricing & Market Data
This plant is outside organized wholesale electricity markets (ISOs/RTOs). Nodal pricing data is not available.
News & Articles (10)Beta
Industry·earnings
Dominion Energy raises its capital spending plan in SC, other states
The parent of Dominion Energy South Carolina forecast an annual profit below Wall Street expectations on Feb. 23 while raising its five-year...
Dominion Energy South Carolina (operator)
Post and Courier·2 weeks ago
Regulatory·state puc
Residents for and against Duke Energy Natural Gas plant in Starr
Public Service Commission of South Carolina met in Anderson, SC.
Public Service Commission of South Carolina (regulator)Duke Energy (other)
Independent Mail·4 weeks ago
Industry·corporate
Williams explores US gas production to boost AI energy supply
Williams Companies is considering acquiring US natural gas production assets to support its AI infrastructure energy supply for hyperscalers...
Williams Companies (buyer)
The Journal Record·4 weeks ago
Industry·corporate
OPPD extends coal burning at the North Omaha Station
News in 2026. Citing study, OPPD said its Omaha coal plant poses no 'significant' health threat. That's misleading, experts say,...
OPPD (operator)
Sierra Club·4 weeks ago
Last updated 2026-03-14
View all 10 articles