Seminole (OK) — Plant Summary
- EIA Plant ID
- 2956
- Capacity
- 1701 MW
- Primary Fuel
- Natural Gas
- Technology
- Natural Gas Steam Turbine
- Status
- Operating
- Location
- Seminole, OK
- Operating Since
- 1971
- Generators
- 3
- Operator
- Oklahoma Gas & Electric Co
- Parent Company
- —
- Annual Generation
- 1,991,596 MWh
- Capacity Factor
- 14.5%
- Balancing Authority
- Southwest Power Pool
- ISO/RTO
- SPP
- NERC Region
- MRO
Seminole (OK)
OperatingNatural Gas
Ranked #3 of 38 Natural Gas plants in OK#43 of 2009 nationally
1701 MW Natural Gas operating in Seminole, OK — Southwest Power Pool
EIAWD
1,701 MW
Nameplate Capacity
3
Generators
units
Natural Gas Steam Turbine
Technology
1971
Operating Since
Location
Coordinates
34.9661, -96.7258
County
Seminole, OK
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Oklahoma Gas & Electric Co | — | — |
| Owner(s) | Oklahoma Gas & Electric Co | — | — |
| Status | Operating | — | — |
Ownership Chain
No GEM tracker match for this plant — ownership chain unavailable.
About
The Seminole power plant is located in Seminole County, Oklahoma. It is owned and operated by Oklahoma Gas & Electric Co. The plant utilizes natural gas as its primary fuel source and has a total capacity of 1701 MW across three generators. The plant began operating in 1971, employing natural gas steam turbine technology. Seminole is interconnected to the Southwest Power Pool (SPP) balancing authority and resides within the Midwest Reliability Organization (MRO) NERC region.
In the most recent year with available data, the Seminole plant generated 1,991,596 MWh of electricity, achieving a capacity factor of 14.5%. The plant ranks as the 3rd largest in Oklahoma out of 26 plants and 48th nationally out of 945 plants. Financial data indicates an installed cost of $148.25 per kW, based on FERC filings.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
MRO
Balancing Authority
Southwest Power Pool
Grid Voltage
345 kV
Regulatory Status
RE
Entity Type
Investor-Owned Utility
Sector
Electric Utility
Generation
105.0K MWh
Latest Month
2.0M MWh
Annual Generation
14.5%
Capacity Factor
Dec 2022 – Nov 2025
Financial DataBeta
Source: FERC Form 1HIGH
$247/kW
Installed Cost
$37.6/MWh
Operating Cost
Oklahoma Gas and Electric Company
Reporting Utility
Annual Capital & Operating Expenses
Cumulative Installed Cost
Per-Unit Cost Trends
Pricing & Market Data
HIGH confidenceMarket Position
ISO/RTO Market
SPP
LMP Node
OKGESM1
Pricing Hub
SPP South Hub
Node Source
EIA-860 direct report
News & Articles (10)Beta
Hazards·wildfire
Red Flag Warning: Grant; Kay; Garfield; Noble; Blaine; Kingfisher; Logan; Payne; Caddo; Canadian; Oklahoma; Lincoln; G
Red Flag Warning issued March 21 at 12:09PM CDT until March 22 at 9:00PM CDT by NWS Norman OK
NWS Norman OK (other)
NWS Norman OK·5 days ago
Industry·corporate
Anna Jean Winrow Brown Obituary (1930 - 2026) - Seminole, OK - The Shawnee News-Star
Dec 25, 1930 - Feb 16, 2026Anna Jean Winrow Brown was born December 25, 1930 to Arlander and Ollie (Miller) Winrow, they preceded her in...
Anna Jean Winrow Brown (other)
Legacy | Obituary·4 weeks ago
Industry·corporate
PAUL LOFTON Obituary (1941 - 2025) - Seminole, OK - The Shawnee News-Star
PAUL LOFTON 10/27/1941 - 10/13/2025 Paul Emmitt Lofton passed from this life to heaven on Monday, October 13, 2025. He was born October 27,...
PAUL LOFTON (other)
Legacy | Obituary·5 months ago
Industry·corporate
Wayne Loomis King III Obituary (2025) - Seminole, OK - Swearingen Funeral Home - Seminole
Wayne King III Obituary Wayne L King III, Midwest City resident, passed away on Saturday, August 2, 2025 in Midwest City at the age of 71.
Wayne Loomis King III (other)
Legacy obituary·7 months ago
Last updated 2026-03-21
View all 10 articles