Tenaska Westmoreland Generating Station
Tenaska Pennsylvania Partners, LLCWestmoreland County
Tenaska Westmoreland Generating Station is an operating natural-gas-fired combined-cycle power plant located in South Huntingdon Township near Smithton in Westmoreland County, Pennsylvania. The facility consists of two Mitsubishi M501J gas turbines (327 MW each) and a steam-turbine generator in a heat-recovery steam-generation arrangement, with a total nameplate capacity of 1,134 MW across three EIA-registered units (CTG1, CTG2, and STG1). The plant entered commercial operation in December 2018 and sells power into the PJM Interconnection. Tenaska Pennsylvania Partners, LLC is the legal owner; Tenaska Operations, Inc. operates the facility.
Mapped infrastructure geometry associated with this asset.
EIA plant 60464 · Inventory for Aug 2026.
| Generator | Technology | Status | Power (MW) | Energy (MWh) |
|---|---|---|---|---|
| CTG1 | Natural Gas Fired Combined Cycle | Operating | 370 | Unknown |
| CTG2 | Natural Gas Fired Combined Cycle | Operating | 370 | Unknown |
| STG1 | Natural Gas Fired Combined Cycle | Operating | 394 | Unknown |
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Operating generator records and technology attributes reported through EIA-860.
| Generator | Capacity | Technology | Operation | Status |
|---|---|---|---|---|
| CTG1 | 370 MW 288 MW summer | Natural Gas Fired Combined Cycle Natural Gas · CT | Dec 2018 | Operating |
| CTG2 | 370 MW 288 MW summer | Natural Gas Fired Combined Cycle Natural Gas · CT | Dec 2018 | Operating |
| STG1 | 394 MW 371 MW summer | Natural Gas Fired Combined Cycle Natural Gas · CA | Dec 2018 | Operating |
Monthly EIA generation history and recent market-resource behavior where linked telemetry is available.
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.
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Project milestones and public references behind the asset profile.
Tenaska closed approximately $780 million in commercial financing for Tenaska Westmoreland. MUFG Union Bank, N.A., BNP Paribas, Citigroup Global Markets, and Industrial and Commercial Bank of China, Limited led the bank group. The financing was supported by PJM's forward capacity market and five-year revenue hedging.
Monthly generation is reported through EIA-923. Capacity factor uses the current EIA nameplate capacity and is shown only for complete calendar years.
Portfolio membership follows the latest EIA-860 reporting entity. It does not imply ultimate ownership.
Tenaska Westmoreland Generating Station entered commercial operation. The facility began selling power into the PJM Interconnection.
Answered from the published record above. Questions whose inputs this profile does not carry are omitted rather than estimated.
Tenaska Westmoreland Generating Station reports 1,134 MW natural gas of operating nameplate capacity. These technology ratings do not establish a common export limit. Source: EIA Aug 2026.
Tenaska Westmoreland Generating Station is a Natural Gas Fired Combined Cycle facility in Westmoreland County, PA, participating in the PJM market.
Tenaska Westmoreland Generating Station is in Westmoreland County, PA, inside the PJM balancing area.
Tenaska Westmoreland Generating Station is operated by Tenaska Pennsylvania Partners, LLC according to the EIA generator inventory. Reporting membership does not by itself establish ultimate ownership.
Tenaska Westmoreland Generating Station reported 6,377.2 GWh over the twelve months to 2026-07. Figures are net generation as filed to EIA-923.
By capacity, Tenaska Westmoreland Generating Station ranks #73 of 540 operating plants of the same technology nationally. It ranks #6 of 26 in PA.
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.