Elwood Energy LLC
Natural gas power plant in Will County, Illinois. 576 MW of nameplate capacity across 3 generators, operated by Elwood Energy, LLC.
Also known as EIA plant 55199
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 576 MWNameplate
- Generators
- 3 operatingEIA-860M, August 2026
- Operating since
- July 2001First generator online
- Operator
- Elwood Energy, LLCEIA operator ID 5259
- Grid
- PJMBalancing authority PJM
- Price nodes
- 7 PJM nodesResource nodes with prices
- Location
- Will County, IL41.4388, −88.1236
- EIA plant ID
- 55199EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Elwood Energy produces
Free · EIA-923Net generation, 2025
192 GWh
191,685 MWh, final
Capacity factor, 2025
Not reported
2024: 1.4%
January to July 2026
387 GWh
Provisional
Range, 2015 to 2025
0.2–1.2
TWh a year. Low 2022, high 2016
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | 417,404 | Not reported | 12 of 12 |
| 2001 | 401,977 | Not reported | 12 of 12 |
| 2002 | 524,560 | Not reported | 12 of 12 |
| 2003 | 213,064 | Not reported | 12 of 12 |
| 2004 | 199,018 | Not reported | 12 of 12 |
| 2005 | 435,737 | Not reported | 12 of 12 |
| 2006 | 213,799 | Not reported | 12 of 12 |
| 2007 | 310,808 | Not reported | 12 of 12 |
| 2008 | 132,637 | Not reported | 12 of 12 |
| 2009 | 157,342 | Not reported | 12 of 12 |
| 2010 | 555,412 | 3.7% | 12 of 12 |
| 2011 | 315,488 | 2.1% | 12 of 12 |
| 2012 | 814,802 | 5.4% | 12 of 12 |
| 2013 | 278,300 | 1.8% | 12 of 12 |
| 2014 | 287,213 | 1.9% | 12 of 12 |
| 2015 | 568,460 | 3.8% | 12 of 12 |
| 2016 | 1,196,164 | 7.9% | 12 of 12 |
| 2017 | 358,423 | 2.4% | 12 of 12 |
| 2018 | 356,318 | 2.4% | 12 of 12 |
| 2019 | 249,066 | 1.6% | 12 of 12 |
| 2020 | 392,216 | 2.6% | 12 of 12 |
| 2021 | 836,575 | 5.5% | 12 of 12 |
| 2022 | 158,559 | 1.0% | 12 of 12 |
| 2023 | 945,799 | 6.2% | 12 of 12 |
| 2024 | 216,541 | 1.4% | 12 of 12 |
| 2025 | 191,685 | Not reported | 12 of 12 |
| 2026 (provisional, partial year) | 387,391 | Not reported | 7 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
144,963
US short tons. 2024: 149,763
SO₂, 2025
1
US short tons
NOx, 2025
45
US short tons
CO₂ per MWh, calculated
0.76 t
About 1,513 lb per MWh
9 of 9 EPA units reported CO₂ in 2025 (1, 2, 3, 4, 5, 6, 7, 8, and others), matched to EIA plant 55199 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 |
|---|---|---|---|
| GT5 | Natural Gas Fired Combustion Turbine | 192.0 | July 2001 |
| GT6 | Natural Gas Fired Combustion Turbine | 192.0 | July 2001 |
| GT7 | Natural Gas Fired Combustion Turbine | 192.0 | August 2001 |
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 Elwood 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.
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Questions about Elwood Energy
How much power does Elwood Energy LLC produce?
Elwood Energy LLC reported 191,685 MWh (192 GWh) of net generation in 2025. From January to July 2026 it reported 387 GWh, which is provisional.
Where is Elwood Energy LLC?
Elwood Energy LLC is in Will County, Illinois, at 41.4388, −88.1236. It is in the PJM Interconnection, LLC balancing area (PJM).
Who operates Elwood Energy LLC?
EIA-860M for August 2026 lists Elwood Energy, LLC as the operator (EIA operator ID 5259). The operator is not always the owner.
When did Elwood Energy LLC start operating?
Its first generator began operating in July 2001, according to EIA-860M.
Does InfraMap have power prices for Elwood Energy LLC?
Yes. InfraMap has PJM day-ahead and real-time prices at 7 price nodes linked to Elwood Energy LLC, 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