903.9 MW Natural Gas operating in Tulsa, OK — Southwest Power Pool
903.9 MW
Nameplate Capacity
6
Generators
units
Natural Gas Fired Combined Cycle
Technology
2002
Operating Since
Coordinates
35.9833, -95.9346
County
Tulsa, OK
Nearby Plants
Owner data does not fully agree across sources.
EIA typically reports the operating utility, while GEM resolves to the financial owner or parent corporation. Both can be correct.
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Public Service Co of Oklahoma | Public Service Company of Oklahoma | — |
| Owner(s) | Green Country OP Services LLC | American Electric Power Company | — |
| Status | Operating | — | — |
Green Country Energy LLC is a 903.9 MW natural gas-fired combined cycle power plant located in Tulsa County, Oklahoma. The plant began operating in 2002 and consists of 6 generators. It is owned and operated by Green Country OP Services LLC. The plant is connected to the Southwest Power Pool (SPP) balancing authority and resides within the Midwest Reliability Organization (MRO) NERC region.
In the most recent year of reported data, Green Country Energy generated 3,651,548 MWh of electricity, achieving a capacity factor of 46.1%. The plant ranks as the 11th largest in Oklahoma out of 26 total plants, and it holds the 202nd position nationally among 945 power plants.
Generated from EIA, GEM, and public data sources
NERC Region
MRO
Balancing Authority
Southwest Power Pool
Grid Voltage
345.0 kV
Regulatory Status
NR
Entity Type
Investor-Owned Utility
Sector
IPP Non-CHP
321.5K MWh
Latest Month
3.7M MWh
Annual Generation
46.1%
Capacity Factor
2013
$965/kW
Est. Construction Cost
Total estimated cost: $872.4M
Point of Interconnection
Nearest Substation
Green Country Substation
Substation Distance
0 km
Coord Source
OSM spatial
Market Position
ISO/RTO Market
SPP
LMP Node
CSWS.TNSK.GREENCOUNTRY
Pricing Hub
SPP South Hub
Node Source
Curated node match
Last updated 2026-03-14
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