NRG Rockford I
Winnebago County, Illinois · EIA plant ID 55238 · Operator: Rockford Generation LLC
Nameplate316MWSummer 362 MW
Generators2in service
Net generation107GWh12 mo to Dec 2025
Capacity factor3%gas/coal/oil units, summer MW
Heat rate10,858Btu/kWhfossil units, electric fuel, HHV
First online2000Runs as peaking
Monthly net generation
EIA-923, all units at the plant. Net of station use; storage can go negative.
FinalPreliminary
Capacity factor by year
Net MWh ÷ (summer MW × hours), gas/coal/oil units. Each year uses that year's EIA-860 ratings; the hollow dot is the latest 12 months.
Heat rate by year
Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2001 | 41.5 | 1.5% | 10,764 |
| 2002 | 106.4 | 3.9% | 10,543 |
| 2003 | 17.5 | 0.6% | 10,094 |
| 2004 | 27.6 | 1.0% | 10,103 |
| 2005 | 28.8 | 1.1% | 10,242 |
| 2006 | 30.9 | 1.2% | 10,483 |
| 2007 | 35.2 | 1.4% | 10,430 |
| 2008 | 20.7 | 0.8% | 10,251 |
| 2009 | 11.8 | 0.4% | 10,429 |
| 2010 | 10.5 | 0.4% | 10,489 |
| 2011 | 33.9 | 1.3% | 11,501 |
| 2012 | 44.3 | 1.7% | 11,218 |
| 2013 | 33 | 1.3% | 11,758 |
| 2014 | 35.5 | 1.3% | 11,891 |
| 2015 | 135.5 | 5.2% | 11,632 |
| 2016 | 164.9 | 6.3% | 10,920 |
| 2017 | 74.2 | 2.8% | 10,767 |
| 2018 | 191.6 | 7.3% | 10,647 |
| 2019 | 132.2 | 5.0% | 10,714 |
| 2020 | 129.2 | 4.8% | 10,709 |
| 2021 | 264.3 | 8.3% | 10,457 |
| 2022 | 79.2 | 2.5% | 14,532 |
| 2023 | 107.1 | 3.3% | 5,545 |
| 2024 | 80.3 | 2.5% | 10,790 |
| 2025 | 106.5 | 3.4% | 10,858 |
Generators
EIA-860 (annual) with EIA-860M updates through Sep 2026. EIA-923 reports generation by plant, prime mover and fuel, not by unit, so unit-level output isn't shown.
| Gen ID | Technology | Prime mover | Nameplate MW | Summer MW | Online | Status | Planned retirement | OEM / model |
|---|---|---|---|---|---|---|---|---|
| 1 | Natural Gas Fired Combustion Turbine | GT | 158 | 181.5 | Jun 2000 | Operating | — | coming soon |
| 2 | Natural Gas Fired Combustion Turbine | GT | 158 | 180.7 | Jun 2000 | Operating | — | coming soon |
Owner / operator
Operator: Rockford Generation LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Rockford Generation LLC | 100.0% | 316 MW |
Nearby plants
Within 80 km.
| NRG Rockford II Energy Center | 168 MW | 0 km |
| Kishwaukee CHP Plant | 3 MW | 2 km |
| Lowe's - 1440 - Rockford, IL RDC (POI 2) | — | 2.5 km |
| Lowe's - 1440 - Rockford, IL RDC (POI 1) | — | 2.5 km |
| Slidematic at Rockford | 2 MW | 4.2 km |
| Rockford Solar | 2 MW | 5.2 km |