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1701 MW Natural Gas operating in Seminole, OK — Southwest Power Pool
1,701 MW
Nameplate Capacity
3
Generators
units
Natural Gas Steam Turbine
Technology
1971
Operating Since
Coordinates
34.9661, -96.7258
County
Seminole, OK
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Oklahoma Gas & Electric Co | — | — |
| Owner(s) | Oklahoma Gas & Electric Co | — | — |
| Status | Operating | — | — |
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
ISO/RTO
SPP
Market
ISO/RTO Member
NERC Region
MRO — Midwest Reliability Organization
Balancing Authority
105.0K MWh
Latest Month
2.0M MWh
Annual Generation
14.5%
Capacity Factor
CO₂ Intensity
1315 lb/MWh
NOx
1 lb/MWh
SO₂
Combined cycle · Oklahoma Gas and Electric Company · Data from 2015–2024
$247/kW
Installed Cost
$11/kW
Annual CapEx
$37.6/MWh
Operating Cost
Annual Capital & Operating Expenses
Cumulative Installed Cost
Per-Unit Cost Trends
Market Position
ISO/RTO Market
SPP
LMP Node
OKGESM1
Pricing Hub
SPP South Hub
Location Type
Settlement Location
Node Source
EIA-860 direct report
Last updated 2026-03-26
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ask pi about Seminole (OK)Southwest Power Pool (SWPP)
Grid Voltage
345.0 kV
Regulatory Status
RE — Regulated
Entity Type
Investor-Owned Utility
Sector
Electric Utility
0.007 lb/MWh
CH₄
0.024 lb/MWh
N₂O
0.002 lb/MWh
Capacity Factor
17.9%
Annual Net Gen
2661 GWh
CO₂eq
1317 lb/MWh
Subregion
SPP South