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551.3 MW Natural Gas operating in McClain, OK — Southwest Power Pool
551.3 MW
Nameplate Capacity
3
Generators
units
Natural Gas Fired Combined Cycle
Technology
2001
Operating Since
Coordinates
35.2977, -97.5898
County
McClain, OK
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Oklahoma Gas & Electric Co | — | — |
| Owner(s) | Oklahoma Gas & Electric Co, Oklahoma Municipal Power Authority | — | — |
| Status | Operating | — | — |
The McClain Energy Facility is a 551.3 MW natural gas-fired combined cycle power plant located in McClain County, Oklahoma. It began operating in 2001 and is owned and operated by Oklahoma Gas & Electric Co. The facility consists of 3 generators. It operates within the Southwest Power Pool (SPP) balancing authority and the MRO NERC region.
In the most recent year of record, the McClain Energy Facility generated 1,375,816 MWh of electricity, achieving a capacity factor of 28.3%. According to available data, the plant ranks 13th out of 26 power plants in Oklahoma and 451st out of 945 plants nationally. Financial data indicates an installed cost of $687.92 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
143.4K MWh
Latest Month
1.4M MWh
Annual Generation
28.3%
Capacity Factor
CO₂ Intensity
820 lb/MWh
NOx
0.201 lb/MWh
SO₂
Combined cycle · Oklahoma Gas and Electric Company · Data from 2015–2024
$761/kW
Installed Cost
$-55/kW
Annual CapEx
$26.5/MWh
Operating Cost
Annual Capital & Operating Expenses
Cumulative Installed Cost
Per-Unit Cost Trends
Point of Interconnection
Nearest Substation
McClain Substation · 138 kV
Substation Distance
< 10 km
Coord Source
OSM spatial
Market Position
ISO/RTO Market
SPP
LMP Node
OKGEMCC
Pricing Hub
SPP South Hub
Location Type
Settlement Location
Node Source
EIA-860 direct report
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ask pi about McClain Energy FacilitySouthwest Power Pool (SWPP)
Grid Voltage
138.0 kV
Regulatory Status
RE — Regulated
Entity Type
Investor-Owned Utility
Sector
Electric Utility
0.004 lb/MWh
CH₄
0.016 lb/MWh
N₂O
0.002 lb/MWh
Capacity Factor
53.5%
Annual Net Gen
2584 GWh
CO₂eq
821 lb/MWh
Subregion
SPP South