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1232 MW Natural Gas Fired Combustion Turbine (569 MW) + Natural Gas Steam Turbine (663 MW) operating in Oklahoma, OK
1,232 MW
Nameplate Capacity
6
Generators
units
Hybrid (2)
Technology
Natural Gas Fired Combustion Turbine + Natural Gas Steam Turbine
1963
Operating Since
Coordinates
35.5087, -97.1797
County
Oklahoma, OK
Nearby Plants
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Request a demo →| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Oklahoma Gas & Electric Co | — | — |
| Owner(s) | Oklahoma Gas & Electric Co | — | — |
| Status | Operating | — | — |
Horseshoe Lake is a 1232 MW hybrid power plant located in Oklahoma County, Oklahoma. The plant, which began operating in 1963, is owned and operated by Oklahoma Gas & Electric Co. It utilizes both natural gas-fired combustion turbine and natural gas steam turbine technologies. Horseshoe Lake ranks as the 7th largest power plant in Oklahoma out of 26, and 104th nationally out of 945 plants.
The plant's latest annual generation was 614,944 MWh, resulting in a capacity factor of 5.7%. Horseshoe Lake connects to the Southwest Power Pool (SPP) balancing authority and is within the MRO NERC region. Financial data indicates an installed cost of $192.59 per kW, based on FERC filings. The plant consists of 6 generators.
Generated from EIA, GEM, and public data sources
ISO/RTO
SPP
Market
ISO/RTO Member
NERC Region
MRO — Midwest Reliability Organization
Balancing Authority
11.1K MWh
Latest Month
614.9K MWh
Annual Generation
5.7%
Capacity Factor
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Request a demo →CO₂ Intensity
1312 lb/MWh
NOx
2 lb/MWh
SO₂
Combined cycle · Oklahoma Gas and Electric Company · Data from 2015–2024
$313/kW
Installed Cost
$-28/kW
Annual CapEx
$44.2/MWh
Operating Cost
Annual Capital & Operating Expenses
Cumulative Installed Cost
Per-Unit Cost Trends
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Request a demo →Market Position
ISO/RTO Market
SPP
LMP Node
OKGEHL8
Pricing Hub
SPP South Hub
Location Type
Settlement Location
Node Source
EIA-860 direct report
Last updated 2026-04-09
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Request a demoSouthwest Power Pool (SWPP)
Grid Voltage
138.0 kV
Regulatory Status
RE — Regulated
Entity Type
Investor-Owned Utility
Sector
Electric Utility
0.007 lb/MWh
CH₄
0.023 lb/MWh
N₂O
0.002 lb/MWh
Capacity Factor
10.4%
Annual Net Gen
865 GWh
CO₂eq
1313 lb/MWh
Subregion
SPP South