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596.7 MW Natural Gas operating in Lake, IL — PJM Interconnection, LLC
596.7 MW
Nameplate Capacity
3
Generators
units
Natural Gas Fired Combustion Turbine
Technology
2002
Operating Since
Coordinates
42.4776, -87.8950
County
Lake, IL
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Zion Energy LLC | Zion Energy | — |
| Owner(s) | Zion Energy LLC | Constellation Energy | — |
| Status | Operating | — | — |
Zion Energy Center is a 596.7 MW natural gas-fired power plant located in Lake County, Illinois. The plant began operating in 2002 and is owned by Constellation Energy. The operator listed with the EIA is Zion Energy LLC. The facility utilizes natural gas-fired combustion turbine technology across its three generators. Zion Energy Center is connected to the PJM Interconnection, LLC balancing authority and resides within the ReliabilityFirst Corporation (RFC) NERC region.
In the most recent year of reported data, Zion Energy Center generated 363,610 MWh of electricity, achieving a capacity factor of 6.9%. The plant is ranked as the 14th largest in Illinois out of 32 plants, and nationally it is ranked 405th out of 945 plants.
Generated from EIA, GEM, and public data sources
ISO/RTO
PJM
Market
ISO/RTO Member
NERC Region
RFC
Balancing Authority
10.8K MWh
Latest Month
363.6K MWh
Annual Generation
6.9%
Capacity Factor
CO₂ Intensity
1339 lb/MWh
NOx
0.380 lb/MWh
SO₂
2013
$965/kW
Est. Construction Cost
Total estimated cost: $575.9M
Market Position
ISO/RTO Market
PJM
LMP Node
974 ZION18 KV ZE11
Pricing Hub
N ILLINOIS HUB
Location Type
Generation Node
Node Source
Curated node match
Last updated 2026-03-14
View all articlesNo ask pi reports yet for this entity.
ask pi about Zion Energy CenterPJM Interconnection, LLC (PJM)
Grid Voltage
345.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
0.007 lb/MWh
CH₄
0.025 lb/MWh
N₂O
0.003 lb/MWh
Capacity Factor
5.9%
Annual Net Gen
311 GWh
CO₂eq
1340 lb/MWh
Subregion
RFC West