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1883.2 MW Conventional Steam Coal (1872 MW) + Petroleum Liquids (11 MW) standby in Armstrong, PA — PJM Interconnection, LLC
1,883.2 MW
Nameplate Capacity
6
Generators
units
Hybrid (2)
Technology
Conventional Steam Coal + Petroleum Liquids
1967
Operating Since
Coordinates
40.6604, -79.3411
County
Armstrong, PA
Nearby Plants
Owner data does not fully agree across sources.
EIA typically reports the operating utility, while GEM resolves to the financial owner or parent corporation. Both can be correct.
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | KeyCon Operating LLC | — | Reliant Energy |
| Owner(s) | Chief Keystone Power II, LLC, Chief Keystone Power LLC, Keystone Power LLC, Keystone Power Pass-Through Holders LLC, Montour LLC | — | — |
| Status | Standby | — | — |
The Keystone Generating Station is a 1.71-gigawatt, coal power plant located on roughly 1,500 acres (610 ha) in Plumcreek Township, southeastern Armstrong County, Pennsylvania near Crooked Creek, just west of Shelocta, Pennsylvania.
Read more on WikipediaThe Keystone power plant, located in Armstrong County, Pennsylvania, has a total capacity of 1883.2 MW across six generators. The plant began operating in 1967 and is operated by KeyCon Operating LLC. While its primary fuel is listed as DFO (distillate fuel oil), the plant utilizes both conventional steam coal and petroleum liquids as energy sources, classifying it as a hybrid facility. Keystone ranks as the second-largest of six power plants in Pennsylvania and 3rd out of 60 nationally.
Keystone operates within the PJM Interconnection, LLC balancing authority and the RFC NERC region. The plant's latest annual generation was 4,616,096 MWh, achieving a capacity factor of 27.9%. News coverage of the plant includes 10 articles, with 6 focused on industry topics and 4 on regulatory matters. A Wikipedia extract is available for the plant.
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
500.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
755.8K MWh
Latest Month
4.6M MWh
Annual Generation
27.9%
Capacity Factor
CO₂ Intensity
2200 lb/MWh
NOx
0.723 lb/MWh
SO₂
5 lb/MWh
CH₄
0.260 lb/MWh
N₂O
0.038 lb/MWh
Capacity Factor
16.8%
Annual Net Gen
2764 GWh
CO₂eq
2217 lb/MWh
Subregion
RFC East
Point of Interconnection
Nearest Substation
Keystone Substation · 500 kV
Substation Distance
< 10 km
Coord Source
OSM spatial
Market Position
ISO/RTO Market
PJM
LMP Node
50781
Pricing Hub
WESTERN HUB
Node Source
EIA-860 direct report
Last updated 2026-04-09
View all 9 articlesNo ask pi reports yet for this entity.
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