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56.4 MW Natural Gas operating in Payne, OK — Southwest Power Pool
56.4 MW
Nameplate Capacity
3
Generators
units
Natural Gas Internal Combustion Engine
Technology
2016
Operating Since
Coordinates
36.1610, -97.0358
County
Payne, OK
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Stillwater Utilities Authority | Stillwater Utilities Authority | — |
| Owner(s) | Stillwater Utilities Authority | Stillwater Utilities Authority | — |
| Status | Operating | — | — |
Stillwater Energy Center is a 56.4 MW natural gas-fired power plant located in Payne County, Oklahoma. The plant began operating in 2016 and is owned and operated by Stillwater Utilities Authority. It consists of three natural gas internal combustion engine generators. The plant is located within the Southwest Power Pool (SPP) balancing authority and the Midwest Reliability Organization (MRO) NERC region.
In the most recent year of available data, Stillwater Energy Center generated 138,836 MWh of electricity, achieving a capacity factor of 28.0%. The plant ranks 28th out of 38 power plants in Oklahoma and 1080th out of 1963 plants nationally. Public sources show 11 news articles related to the plant, with coverage including industry trends, hazards, regulatory matters, and business deals.
Generated from EIA, GEM, and public data sources
ISO/RTO
SPP
Market
ISO/RTO Member
NERC Region
MRO — Midwest Reliability Organization
Balancing Authority
Southwest Power Pool (SWPP)
Grid Voltage
69.0 kV
Regulatory Status
RE — Regulated
Entity Type
Municipal
Sector
Electric Utility
10.8K MWh
Latest Month
138.8K MWh
Annual Generation
28.0%
Capacity Factor
CO₂ Intensity
1104 lb/MWh
NOx
26 lb/MWh
SO₂
0.030 lb/MWh
CH₄
0.021 lb/MWh
N₂O
0.002 lb/MWh
Capacity Factor
17.9%
Annual Net Gen
88 GWh
CO₂eq
1106 lb/MWh
Subregion
SPP South
2016
$895/kW
Est. Construction Cost
Total estimated cost: $50.5M
Point of Interconnection
Nearest Substation
Ferguson · 69 kV
Substation Distance
< 10 km
Operator
City of Stillwater
Coord Source
OSM spatial
Market Position
ISO/RTO Market
SPP
LMP Node
GRDAFERGUS2UNSTILLWATER_EC1_RA
Pricing Hub
SPP South Hub
Node Source
EIA-860 direct report
Last updated 2026-03-26
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