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1134 MW Natural Gas operating in Westmoreland, PA — PJM Interconnection, LLC
1,134 MW
Nameplate Capacity
3
Generators
units
Natural Gas Fired Combined Cycle
Technology
2018
Operating Since
Coordinates
40.1752, -79.6967
County
Westmoreland, PA
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Tenaska Pennsylvania Partners, LLC | — | — |
| Owner(s) | DGC Westmoreland, LLC, J-POWER Westmoreland, LLC, Tenaska Pennsylvania Holdings, LLC, Tenaska Pennsylvania I, LLC | — | — |
| Status | Operating | — | — |
Tenaska Westmoreland Generating Station is a natural gas-fired combined cycle power plant located in Westmoreland County, Pennsylvania. The plant has a total capacity of 1134 MW across three generators. It began operating in 2018 and is owned and operated by Tenaska Pennsylvania Partners, LLC. The plant operates within the PJM Interconnection, LLC balancing authority and the RFC NERC region.
In its most recent year of operation, Tenaska Westmoreland Generating Station produced 6,298,297 MWh of electricity, achieving a capacity factor of 63.4%. The plant is a significant power producer in Pennsylvania, ranking as the 10th largest out of 35 power plants in the state, and 132nd largest out of 945 plants nationally.
Generated from EIA, GEM, and public data sources
ISO/RTO
PJM
Market
ISO/RTO Member
NERC Region
RFC
Balancing Authority
PJM Interconnection, LLC (PJM)
Grid Voltage
525.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
690.6K MWh
Latest Month
6.3M MWh
Annual Generation
63.4%
Capacity Factor
CO₂ Intensity
799 lb/MWh
NOx
0.033 lb/MWh
SO₂
0.004 lb/MWh
CH₄
0.015 lb/MWh
N₂O
0.001 lb/MWh
Capacity Factor
67.0%
Annual Net Gen
6661 GWh
CO₂eq
800 lb/MWh
Subregion
RFC West
2018
$837/kW
Est. Construction Cost
Total estimated cost: $949.2M
Point of Interconnection
Nearest Substation
Tensaka Westmoreland Substation · 500 kV
Substation Distance
< 10 km
Coord Source
OSM spatial
Market Position
ISO/RTO Market
PJM
LMP Node
1356163094
Pricing Hub
WESTERN HUB
Node Source
EIA-860 direct report
Last updated 2026-03-26
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