NRG Rockford I
Natural gas power plant in Winnebago County, Illinois. 316 MW of nameplate capacity across 2 generators, operated by Rockford Generation LLC.
Also known as NRG Rockford I Power Plant · EIA plant 55238
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Key facts
- Capacity
- 316 MWNameplate
- Generators
- 2 operatingEIA-860M, August 2026
- Operating since
- June 2000First generator online
- Operator
- Rockford Generation LLCEIA operator ID 60504
- Grid
- PJMBalancing authority PJM
- Price nodes
- 2 PJM nodesResource nodes with prices
- Location
- Winnebago County, IL42.2386, −89.1012
- EIA plant ID
- 55238EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power NRG Rockford I produces
Free · EIA-923Net generation, 2025
107 GWh
106,527 MWh, final
Capacity factor, 2025
3.8%
2024: 2.9%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2015 to 2025
74.2–264.3
GWh a year. Low 2017, high 2021
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | 37,251 | Not reported | 12 of 12 |
| 2001 | 41,488 | Not reported | 12 of 12 |
| 2002 | 106,381 | Not reported | 12 of 12 |
| 2003 | 17,478 | Not reported | 12 of 12 |
| 2004 | 27,592 | Not reported | 12 of 12 |
| 2005 | 28,751 | Not reported | 12 of 12 |
| 2006 | 30,925 | Not reported | 12 of 12 |
| 2007 | 35,157 | Not reported | 12 of 12 |
| 2008 | 20,711 | Not reported | 12 of 12 |
| 2009 | 11,837 | Not reported | 12 of 12 |
| 2010 | 10,499 | 0.4% | 12 of 12 |
| 2011 | 33,890 | Not reported | 12 of 12 |
| 2012 | 44,330 | Not reported | 12 of 12 |
| 2013 | 33,038 | 1.2% | 12 of 12 |
| 2014 | 35,479 | 1.3% | 12 of 12 |
| 2015 | 135,459 | 4.9% | 12 of 12 |
| 2016 | 164,918 | 5.9% | 12 of 12 |
| 2017 | 74,201 | 2.7% | 12 of 12 |
| 2018 | 191,593 | 6.9% | 12 of 12 |
| 2019 | 132,219 | 4.8% | 12 of 12 |
| 2020 | 129,247 | 4.7% | 12 of 12 |
| 2021 | 264,296 | Not reported | 12 of 12 |
| 2022 | 79,238 | 2.9% | 12 of 12 |
| 2023 | 107,086 | 3.9% | 12 of 12 |
| 2024 | 80,309 | 2.9% | 12 of 12 |
| 2025 | 106,527 | 3.8% | 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
64,225
US short tons. 2024: 48,893
SO₂, 2025
0
US short tons
NOx, 2025
21
US short tons
CO₂ per MWh, calculated
0.60 t
About 1,206 lb per MWh
2 of 2 EPA units reported CO₂ in 2025 (1, 2), matched to EIA plant 55238 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 |
|---|---|---|---|
| 0001 | Natural Gas Fired Combustion Turbine | 158.0 | June 2000 |
| 0002 | Natural Gas Fired Combustion Turbine | 158.0 | June 2000 |
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 Rockford Generation 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 NRG Rockford I
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Questions about NRG Rockford I
How much power does NRG Rockford I produce?
NRG Rockford I reported 106,527 MWh (107 GWh) of net generation in 2025, a 3.8% capacity factor on 316 MW of nameplate capacity.
Where is NRG Rockford I?
NRG Rockford I is in Winnebago County, Illinois, at 42.2386, −89.1012. It is in the PJM Interconnection, LLC balancing area (PJM).
Who operates NRG Rockford I?
EIA-860M for August 2026 lists Rockford Generation LLC as the operator (EIA operator ID 60504). The operator is not always the owner.
When did NRG Rockford I start operating?
Its first generator began operating in June 2000, according to EIA-860M.
Does InfraMap have power prices for NRG Rockford I?
Yes. InfraMap has PJM day-ahead and real-time prices at 2 price nodes linked to NRG Rockford I, 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
- Plant names from OpenStreetMap, © OpenStreetMap contributors (ODbL)
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page