668.5 MW Natural Gas operating in Calhoun, SC — Dominion Energy South Carolina
668.5 MW
Nameplate Capacity
3
Generators
units
Natural Gas Fired Combined Cycle
Technology
2004
Operating Since
Coordinates
33.8697, -81.0178
County
Calhoun, SC
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Dominion Energy South Carolina, Inc | Dominion Energy South Carolina | — |
| Owner(s) | Dominion Energy South Carolina, Inc | Dominion Energy | — |
| Status | Operating | — | — |
Columbia Energy Center is a 668.5 MW natural gas-fired combined cycle power plant located in Calhoun County, South Carolina. The plant began operating in 2004 and consists of 3 generators. It is owned and operated by Dominion Energy South Carolina, Inc, a subsidiary of Dominion Energy. The plant operates within the Dominion Energy South Carolina balancing authority and the SERC NERC region.
In the most recent year of data, Columbia Energy Center generated 3,041,679 MWh of electricity, achieving a capacity factor of 51.9%. According to available data, the installed cost of the plant was $390.62 per kW. Columbia Energy Center is the 7th largest power plant in South Carolina out of 13, and ranks 346th nationally out of 945 plants. Financial data is sourced from FERC filings.
Generated from EIA, GEM, and public data sources
NERC Region
SERC
Balancing Authority
Dominion Energy South Carolina
Grid Voltage
230 kV
Regulatory Status
RE
Entity Type
Investor-Owned Utility
Sector
Electric Utility
252.9K MWh
Latest Month
3.0M MWh
Annual Generation
51.9%
Capacity Factor
$508/kW
Installed Cost
$26.3/MWh
Operating Cost
South Carolina Electric & Gas Company
Reporting Utility
Annual Capital & Operating Expenses
Cumulative Installed Cost
Per-Unit Cost Trends
This plant is outside organized wholesale electricity markets (ISOs/RTOs). Nodal pricing data is not available.
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Last updated 2026-03-26
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