Clinton Power Station
De Witt County, Illinois · EIA plant ID 204 · Operator: Exelon Nuclear
Nameplate1,138MWSummer 1,083 MW
Generators1in service
Net generation8,431GWh12 mo to Aug 2026
Capacity factor89%nuclear units, summer MW
Heat rate—thermal plants only
First online1987
The 12-month figures include preliminary EIA-923 months, which EIA revises. Final data runs through Dec 2025.
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), nuclear 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.
Heat rate applies to fuel-burning (thermal) units only.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2001 | 7,879 | 97.3% | — |
| 2002 | 7,657.5 | 86.0% | — |
| 2003 | 8,699 | 96.8% | — |
| 2004 | 8,014 | 87.5% | — |
| 2005 | 8,692.1 | 94.3% | — |
| 2006 | 8,232.3 | 90.1% | — |
| 2007 | 9,250.4 | 101.3% | — |
| 2008 | 8,549.9 | 93.3% | — |
| 2009 | 8,887.9 | 95.3% | — |
| 2010 | 8,612 | 92.3% | — |
| 2011 | 8,671.5 | 93.0% | — |
| 2012 | 9,373.7 | 100.2% | — |
| 2013 | 8,195.5 | 87.8% | — |
| 2014 | 9,071.7 | 97.2% | — |
| 2015 | 8,663.8 | 92.9% | — |
| 2016 | 8,914.5 | 95.3% | — |
| 2017 | 8,348.3 | 89.9% | — |
| 2018 | 8,346.7 | 89.5% | — |
| 2019 | 8,363.3 | 89.6% | — |
| 2020 | 9,462.5 | 101.2% | — |
| 2021 | 8,348.7 | 89.5% | — |
| 2022 | 9,224 | 100.3% | — |
| 2023 | 8,101.6 | 88.1% | — |
| 2024 | 9,575.7 | 101.0% | — |
| 2025 | 8,337.5 | 87.9% | — |
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 | Nuclear | ST | 1,138.3 | 1,082.9 | Nov 1987 | Operating | — | coming soon |
Owner / operator
Operator: Exelon Nuclear. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Exelon Nuclear | 100.0% | 1,138 MW |
Nearby plants
Within 80 km.
| Clinton LFGTE | 3 MW | 12.2 km |
| NL IL - Piatt 1 - East CSG | 2 MW | 14.9 km |
| NL IL - Piatt 2 - West CSG | 2 MW | 14.9 km |
| Farmer City | 11 MW | 18.5 km |
| Alta Farms II Wind Project, LLC | 201 MW | 20.1 km |
| Argenta Solar | — | 20.3 km |