Southwestern reports 656 MW natural gas in SPP.
Mapped infrastructure geometry associated with this asset.
EIA plant 2964 · Inventory for Aug 2026.
| Generator | Technology | Status | Power (MW) | Energy (MWh) |
|---|---|---|---|---|
| 1 | Natural Gas Steam Turbine | Operating | 84 | Unknown |
| 2 | Natural Gas Steam Turbine | Operating | 84 | Unknown |
| 3 | Natural Gas Steam Turbine | Operating | 315 | Unknown |
| 4 | Natural Gas Fired Combustion Turbine | Operating | 86.5 | Unknown |
| 5 | Natural Gas Fired Combustion Turbine | Operating | 86.5 | Unknown |
| IC1 | Petroleum Liquids | Out of service | 2 | Unknown |
Similar plants ranked by technology, capacity, and distance.
Natural Gas · 540.3 MW
Caddo County
Natural Gas · 551.3 MW
McClain County
Natural Gas · 564 MW
Oklahoma County
Natural Gas · 464.5 MW
Canadian County
Operating generator records and technology attributes reported through EIA-860.
| Generator | Capacity | Technology | Operation | Status |
|---|---|---|---|---|
| 1 | 84 MW 56 MW summer | Natural Gas Steam Turbine Natural Gas · ST | Jul 1952 Retirement: Jun 2023 | Operating |
| 2 | 84 MW 79 MW summer | Natural Gas Steam Turbine Natural Gas · ST | Mar 1954 | Operating |
| 3 | 315 MW 311 MW summer | Natural Gas Steam Turbine Natural Gas · ST | Jul 1967 | Operating |
| 4 | 86.5 MW 76 MW summer | Natural Gas Fired Combustion Turbine Natural Gas · GT | Feb 2008 | Operating |
| 5 | 86.5 MW 76 MW summer | Natural Gas Fired Combustion Turbine Natural Gas · GT | Feb 2008 | Operating |
| IC1 | 2 MW 2 MW summer | Petroleum Liquids Disillate Fuel Oil · IC | May 1966 | Out of service and NOT expected to return to service in next calendar year |
Monthly EIA generation history and recent market-resource behavior where linked telemetry is available.
Monthly generation is reported through EIA-923. Capacity factor uses the current EIA nameplate capacity and is shown only for complete calendar years.
Deterministic links to ERCOT market resources, price records, outage disclosures, queue records, and nearby infrastructure. Candidate joins remain labeled until corroborated.
Source-backed project transactions, agreements, land records, permits, and environmental disclosures. Portfolio and adjacent-project facts remain explicitly scoped.
Parties, market resources, and identifiers tied to this asset, with owner, operator, developer, EPC, compliance provider, and interconnecting entity roles kept separate.
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| Largest reported plants | Capacity | State | |
|---|---|---|---|
| Northeastern | 1,477.5 MW | OK | |
| Riverside (OK) | 1,121.7 MW | OK | |
| Green Country Power Station | 903.9 MW | OK | |
| SouthwesternCurrent | 656 MW | OK | |
| Tulsa | 348.2 MW | OK | |
| Comanche (OK) | 290 MW | OK | |
Project milestones and public references behind the asset profile.
EIA-860 lists generator 1 with this operating date.
EIA-860 lists generator 2 with this operating date.
EIA-860 lists generator IC1 with this operating date.
EIA-860 lists generator 3 with this operating date.
EIA-860 lists generator 4, generator 5 with this operating date.
Plant capacity rises to 608 MW.
EIA-860 lists a planned retirement for generator 1.
Answered from the published record above. Questions whose inputs this profile does not carry are omitted rather than estimated.
Southwestern reports 656 MW natural gas of operating nameplate capacity. These technology ratings do not establish a common export limit. Source: EIA Aug 2026.
Southwestern is a Natural Gas Steam Turbine, Natural Gas Fired Combustion Turbine facility in Caddo County, OK, participating in the SPP market.
Southwestern is in Caddo County, OK, inside the SPP balancing area.
Southwestern is operated by Public Service Co of Oklahoma according to the EIA generator inventory. Reporting membership does not by itself establish ultimate ownership.
Southwestern reported 779.4 GWh over the twelve months to 2024-12. Figures are net generation as filed to EIA-923.
By capacity, Southwestern ranks #60 of 259 operating plants of the same technology nationally. It ranks #4 of 10 in OK.
Plants within 25 km, nearest first, regardless of technology. Proximity is straight-line distance between mapped plant coordinates; it does not by itself establish a shared point of interconnection.
Portfolio membership follows the latest EIA-860 reporting entity. It does not imply ultimate ownership.
