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861.6 MW Natural Gas Steam Turbine (782 MW) + Petroleum Liquids (80 MW) operating in Delaware, PA — PJM Interconnection, LLC
861.6 MW
Nameplate Capacity
6
Generators
units
Hybrid (2)
Technology
Natural Gas Steam Turbine + Petroleum Liquids
1967
Operating Since
Coordinates
39.8580, -75.3230
County
Delaware, PA
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Constellation Power, Inc | Constellation Power | — |
| Owner(s) | Constellation Power, Inc | Constellation Energy | — |
| Status | Operating | — | — |
Located in Delaware County, Pennsylvania, the Eddystone Generating Station is an 861.6 MW hybrid power plant primarily fueled by distillate fuel oil (DFO). The plant, which began operating in 1967, is owned by Constellation Energy and operated by Constellation Power, Inc. It comprises six generators utilizing both natural gas steam turbine and petroleum liquid technologies. Eddystone Generating Station operates within the PJM Interconnection, LLC balancing authority and the RFC NERC region.
In the most recent year for which data is available, the plant generated 60,769 MWh of electricity, resulting in a capacity factor of 0.8%. Despite its relatively low capacity factor, Eddystone Generating Station holds a notable position within Pennsylvania's power generation landscape, ranking as the 3rd largest of 6 plants in the state and 12th largest of 60 plants nationally. The plant has been the subject of 10 news articles, with a focus on regulatory (8 articles) and industry (2 articles) related topics.
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
230.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
16 MWh
Latest Month
60.8K MWh
Annual Generation
0.8%
Capacity Factor
CO₂ Intensity
2122 lb/MWh
Low-utilization plant — per-MWh rate is dominated by startup/standby emissions; not directly comparable to baseload averages.
NOx
1 lb/MWh
SO₂
0.012 lb/MWh
CH₄
0.059 lb/MWh
N₂O
0.008 lb/MWh
Capacity Factor
0.4%
Annual Net Gen
27 GWh
CO₂eq
2126 lb/MWh
Subregion
RFC East
2013
$765/kW
Est. Construction Cost
Total estimated cost: $658.8M
Market Position
ISO/RTO Market
PJM
LMP Node
EDDYSTON20 KV UNIT03
Pricing Hub
WESTERN HUB
Location Type
Generation Node
Node Source
EIA-860 direct report
Last updated 2026-03-26
View all 8 articlesNo ask pi reports yet for this entity.
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