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688 MW Natural Gas operating in Armstrong, PA — PJM Interconnection, LLC
688 MW
Nameplate Capacity
4
Generators
units
Natural Gas Fired Combustion Turbine
Technology
2002
Operating Since
Coordinates
40.6380, -79.3517
County
Armstrong, PA
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Armstrong Power LLC | Armstrong Power | — |
| Owner(s) | Armstrong Power LLC | LS Power Development | — |
| Status | Operating | — | — |
The Armstrong power plant is a 688 MW natural gas-fired facility located in Armstrong County, Pennsylvania. It began operating in 2002 and consists of four natural gas fired combustion turbine generators. The plant is owned by LS Power Development and operated by Armstrong Power LLC. It is interconnected to the PJM Interconnection, LLC balancing authority within the RFC NERC region.
In the most recent year of reported data, Armstrong generated 1,286,226 MWh of electricity, achieving a capacity factor of 21.4%. The plant ranks 20th out of 35 power plants in Pennsylvania and 328th 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
99.5K MWh
Latest Month
1.3M MWh
Annual Generation
21.4%
Capacity Factor
CO₂ Intensity
1240 lb/MWh
NOx
0.327 lb/MWh
SO₂
2013
$965/kW
Est. Construction Cost
Total estimated cost: $664.0M
Point of Interconnection
Nearest Substation
South Bend Generation Station · 500 kV
Substation Distance
< 10 km
Coord Source
OSM spatial
Market Position
ISO/RTO Market
PJM
LMP Node
SBEND 18kv-ct1
Pricing Hub
WESTERN HUB
Node Source
EIA-860 direct report
Last updated 2026-04-09
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ask pi about ArmstrongPJM Interconnection, LLC (PJM)
Grid Voltage
526.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
0.006 lb/MWh
CH₄
0.024 lb/MWh
N₂O
0.002 lb/MWh
Capacity Factor
18.5%
Annual Net Gen
1114 GWh
CO₂eq
1241 lb/MWh
Subregion
RFC West