Zion Energy Center
Natural gas power plant in Lake County, Illinois. 596.7 MW of nameplate capacity across 3 generators, operated by Zion Energy LLC.
Also known as EIA plant 55392
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 596.7 MWNameplate
- Generators
- 3 operatingEIA-860M, August 2026
- Operating since
- June 2002First generator online
- Operator
- Zion Energy LLCEIA operator ID 21191
- Grid
- PJMBalancing authority PJM
- Price nodes
- 3 PJM nodesResource nodes with prices
- Location
- Lake County, IL42.4776, −87.8950
- EIA plant ID
- 55392EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Zion produces
Free · EIA-923Net generation, 2025
468 GWh
468,240 MWh, final
Capacity factor, 2025
9.0%
2024: 6.9%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2015 to 2025
132.4–638.5
GWh a year. Low 2015, high 2021
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | Not reported | Not reported | 0 of 12 |
| 2001 | Not reported | Not reported | 0 of 12 |
| 2002 | 139,336 | Not reported | 7 of 12 |
| 2003 | 78,059 | Not reported | 12 of 12 |
| 2004 | 29,916 | Not reported | 12 of 12 |
| 2005 | 34,876 | Not reported | 12 of 12 |
| 2006 | 49,800 | Not reported | 12 of 12 |
| 2007 | 255,573 | Not reported | 12 of 12 |
| 2008 | 115,815 | Not reported | 12 of 12 |
| 2009 | 112,246 | Not reported | 12 of 12 |
| 2010 | 140,105 | 2.7% | 12 of 12 |
| 2011 | 111,193 | 2.1% | 12 of 12 |
| 2012 | 133,143 | 2.5% | 12 of 12 |
| 2013 | 116,809 | 2.2% | 12 of 12 |
| 2014 | 63,656 | 1.2% | 12 of 12 |
| 2015 | 132,434 | 2.5% | 12 of 12 |
| 2016 | 435,494 | 8.3% | 12 of 12 |
| 2017 | 462,063 | 8.8% | 12 of 12 |
| 2018 | 522,428 | 10.0% | 12 of 12 |
| 2019 | 597,390 | 11.4% | 12 of 12 |
| 2020 | 548,681 | 10.5% | 12 of 12 |
| 2021 | 638,453 | 12.2% | 12 of 12 |
| 2022 | 331,565 | 6.3% | 12 of 12 |
| 2023 | 310,517 | 5.9% | 12 of 12 |
| 2024 | 363,610 | 6.9% | 12 of 12 |
| 2025 | 468,240 | 9.0% | 12 of 12 |
| 2026 (provisional, partial year) | Not reported | Not reported | 0 of 7 |
* 2026 covers January to July and is provisional. Capacity factor is net generation divided by nameplate capacity times the hours of each reported month.
Power prices and basis
Free account · PJMEmissions
Free · EPA CAMPDCO₂, 2025
311,156
US short tons. 2024: 248,837
SO₂, 2025
2
US short tons
NOx, 2025
89
US short tons
CO₂ per MWh, calculated
0.66 t
About 1,329 lb per MWh
3 of 3 EPA units reported CO₂ in 2025 (CT-1, CT-2, CT-3), matched to EIA plant 55392 through the EPA–EIA crosswalk. The per-MWh rate is EPA CO₂ divided by EIA-923 net generation. The two reporting boundaries can differ.
Water use
Free · EIA-923 cooling, USGSNo EIA cooling-water record for this plant in 2024.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| CTG1 | Natural Gas Fired Combustion Turbine | 198.9 | June 2002 |
| CTG2 | Natural Gas Fired Combustion Turbine | 198.9 | June 2002 |
| CTG3 | Natural Gas Fired Combustion Turbine | 198.9 | June 2003 |
Ownership and offtake
ProOwnership and offtake are part of Pro
Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists Zion Energy LLC as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
Generation potential vs reported
Monthly potential at seasonal net capability, next to EIA-923 output. Shows how much of the plant's capability was used.
300 analyst questions a month, plus MCP
Query Zion Energy Center and 14,224 other projects from Claude or your own tools. Free accounts get 1 question a day.
Power plants near Zion
Questions about Zion
How much power does Zion Energy Center produce?
Zion Energy Center reported 468,240 MWh (468 GWh) of net generation in 2025, a 9.0% capacity factor on 596.7 MW of nameplate capacity.
Where is Zion Energy Center?
Zion Energy Center is in Lake County, Illinois, at 42.4776, −87.8950. It is in the PJM Interconnection, LLC balancing area (PJM).
Who operates Zion Energy Center?
EIA-860M for August 2026 lists Zion Energy LLC as the operator (EIA operator ID 21191). The operator is not always the owner.
When did Zion Energy Center start operating?
Its first generator began operating in June 2002, according to EIA-860M.
Does InfraMap have power prices for Zion Energy Center?
Yes. InfraMap has PJM day-ahead and real-time prices at 3 price nodes linked to Zion Energy Center, with the hub price and node-to-hub basis. Prices are free with an InfraMap account; pricing node names are part of InfraMap Pro.
Sources
- EIA-860 2025 (final) and EIA-860M August 2026: plant, generators, capacity, operator and location
- EIA-923 monthly net generation, 2000 to July 2026 (2026 provisional)
- EPA CAMPD annual emissions through the EPA–EIA crosswalk, 1995 to 2025
- PJM day-ahead and real-time prices; node and hub assignments as of 2026-10-05
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page