# Tenaska Westmoreland Generating Station

PJM asset profile · https://askthegrid.com/assets/facilities/tenaska-westmoreland-generating-station

Tenaska Pennsylvania Partners, LLC - Westmoreland County - PJM

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.

## Metrics

- **Nameplate capacity:** 1134 MW — Canonical EIA plant baseline.
- **Registry anchor:** Plant 60464 — plant-60464

## Facts

- **Technology:** Natural Gas Fired Combined Cycle
- **Operator:** Tenaska Operations, Inc.

## Related parties

- **Operator / O&M provider:** Tenaska Operations, Inc. — Facility Operator ([source](https://www.tenaska.com/))
- **Developer / parent company:** Tenaska — Managing-Partner Affiliate and Original Developer ([source](https://www.tenaska.com/))
- **Parent company / equity investor:** Diamond Generating Corporation — Ownership Affiliate ([source](https://www.dgc-us.com/))
- **Parent company / equity investor:** J-POWER USA Investment Co., Ltd. — Ownership Affiliate ([source](https://www.jpowerusa.com/project/tenaska-pennsylvania-partners-llc/))
- **EPC contractor / construction contractor:** Black & Veatch — EPC Contractor ([source](https://www.bv.com/))
- **EPC contractor / equipment supplier:** Mitsubishi Hitachi Power Systems — Gas-Turbine OEM and Long-Term Service Provider ([source](https://power.mhi.com/))
- **Lender / lead arranger:** MUFG Union Bank, N.A. — Lead Bank / Lender
- **Lender / lead arranger:** BNP Paribas — Lead Bank / Lender
- **Lender / lead arranger:** Citigroup Global Markets — Lead Bank / Lender
- **Lender / lead arranger:** Industrial and Commercial Bank of China, Limited — Lead Bank / Lender
- **Balancing authority / market operator:** PJM Interconnection, LLC — Balancing Authority and Market Operator
- **Construction contractor / equipment supplier:** Siemens — Project Contractor or Equipment Supplier ([source](https://www.siemens-energy.com/us/en/home.html))

## Sources

- [api.eia.gov](http://api.eia.gov/v2/electricity/operating-generator-capacity/data?api_key=DEMO_KEY&data[0]=nameplate-capacity-mw&data[1]=net-summer-capacity-mw&data[2]=net-winter-capacity-mw&data[3]=operating-year-month&data[4]=planned-retirement-year-month&end=2026-06&facets[plantid][]=60464&frequency=monthly&start=2026-06) — api.eia.gov · authoritative — Source retained for exact-record publication review.
- [prnewswire.com](http://prnewswire.com/news-releases/tenaska-closes-780-million-financing-for-natural-gas-fueled-power-plant-in-pennsylvania-300253861.html) — prnewswire.com · public_source — Source retained for exact-record publication review.

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Canonical page: https://askthegrid.com/assets/facilities/tenaska-westmoreland-generating-station
Website: [Tenaska Pennsylvania Partners, LLC](https://www.tenaska.com/wp-content/uploads/2026/05/Westmoreland-Generating-Station.pdf)

Source: Ask the Grid — https://askthegrid.com/