Nelson Energy Center
Natural gas power plant in Lee County, Illinois. 627.5 MW of nameplate capacity across 4 generators, operated by Invenergy Services LLC.
Also known as EIA plant 55183
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 627.5 MWNameplate
- Generators
- 4 operatingEIA-860M, August 2026
- Operating since
- May 2015First generator online
- Operator
- Invenergy Services LLCEIA operator ID 49893
- Grid
- PJMBalancing authority PJM
- Price nodes
- 4 PJM nodesResource nodes with prices
- Location
- Lee County, IL41.7744, −89.6072
- EIA plant ID
- 55183EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Nelson produces
Free · EIA-923Net generation, 2025
3.03 TWh
3,027,433 MWh, final
Capacity factor, 2025
55.1%
2024: 58.1%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2016 to 2025
1.1–4.0
TWh a year. Low 2016, high 2019
| 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 | Not reported | Not reported | 0 of 12 |
| 2003 | Not reported | Not reported | 0 of 12 |
| 2004 | Not reported | Not reported | 0 of 12 |
| 2005 | Not reported | Not reported | 0 of 12 |
| 2006 | Not reported | Not reported | 0 of 12 |
| 2007 | Not reported | Not reported | 0 of 12 |
| 2008 | Not reported | Not reported | 0 of 12 |
| 2009 | Not reported | Not reported | 0 of 12 |
| 2010 | Not reported | Not reported | 0 of 12 |
| 2011 | Not reported | Not reported | 0 of 12 |
| 2012 | Not reported | Not reported | 0 of 12 |
| 2013 | Not reported | Not reported | 0 of 12 |
| 2014 | Not reported | Not reported | 0 of 12 |
| 2015 | 255,929 | Not reported | 7 of 12 |
| 2016 | 1,053,862 | Not reported | 12 of 12 |
| 2017 | 2,183,898 | 39.7% | 12 of 12 |
| 2018 | 3,515,256 | 63.9% | 12 of 12 |
| 2019 | 4,017,076 | 73.1% | 12 of 12 |
| 2020 | 3,825,587 | 69.4% | 12 of 12 |
| 2021 | 2,235,299 | 40.7% | 12 of 12 |
| 2022 | 2,691,374 | 49.0% | 12 of 12 |
| 2023 | 2,882,286 | 52.4% | 12 of 12 |
| 2024 | 3,204,154 | 58.1% | 12 of 12 |
| 2025 | 3,027,433 | 55.1% | 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
1.29M
US short tons. 2024: 1.35M
SO₂, 2025
7
US short tons
NOx, 2025
150
US short tons
CO₂ per MWh, calculated
0.43 t
About 854 lb per MWh
2 of 2 EPA units reported CO₂ in 2025 (1, 2), matched to EIA plant 55183 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, USGSWithdrawal, 2024
828
million gallons
Consumption, 2024
676
million gallons
Source
Rock River
Surface, Fresh. Induced-draft tower
Watershed stress
Very low/none · 0.148
USGS SUI, HUC12 Threemile Branch
24 of 24 cooling months report withdrawal. SUI of the source river HUC12 within 3 km. Blank volumes are unreported, not zero.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| CT1 | Natural Gas Fired Combined Cycle | 181.9 | May 2015 |
| CT2 | Natural Gas Fired Combined Cycle | 179.4 | May 2015 |
| ST1 | Natural Gas Fired Combined Cycle | 133.1 | May 2015 |
| ST2 | Natural Gas Fired Combined Cycle | 133.1 | May 2015 |
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 Invenergy Services 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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Power plants near Nelson
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Questions about Nelson
How much power does Nelson Energy Center produce?
Nelson Energy Center reported 3,027,433 MWh (3.03 TWh) of net generation in 2025, a 55.1% capacity factor on 627.5 MW of nameplate capacity.
Where is Nelson Energy Center?
Nelson Energy Center is in Lee County, Illinois, at 41.7744, −89.6072. It is in the PJM Interconnection, LLC balancing area (PJM).
Who operates Nelson Energy Center?
EIA-860M for August 2026 lists Invenergy Services LLC as the operator (EIA operator ID 49893). The operator is not always the owner.
When did Nelson Energy Center start operating?
Its first generator began operating in May 2015, according to EIA-860M.
Does InfraMap have power prices for Nelson Energy Center?
Yes. InfraMap has PJM day-ahead and real-time prices at 4 price nodes linked to Nelson 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
- EIA-923 cooling water 2024 and the USGS surface water supply and use index, Water years 2010-2020 (Oct 2009 to Sep 2020), mean of monthly values
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page