Waukegan
Lake County, Illinois · EIA plant ID 883 · Operator: Midwest Generations EME LLC
×682 MW coal retired since 2020 (latest Jun 2022)
Nameplate112MWSummer 108 MW
Generators4in service
Net generation-1GWh12 mo to Aug 2026
Capacity factor-0%!gas/coal/oil units, summer MW
Heat rate—Btu/kWhfossil units, electric fuel, HHV
First online1968Runs as rarely runs
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), 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 | 4,428.3 | — | — |
| 2002 | 4,230.1 | — | — |
| 2003 | 3,696.8 | 47.1% | 10,918 |
| 2004 | 4,219.5 | 53.6% | 11,322 |
| 2005 | 4,732.1 | 60.2% | 10,415 |
| 2006 | 4,116 | 52.4% | 10,576 |
| 2007 | 4,907.5 | 63.1% | 10,482 |
| 2008 | 3,968.2 | 56.7% | 10,452 |
| 2009 | 4,171.8 | 59.8% | 10,631 |
| 2010 | 3,852.9 | 55.2% | 10,509 |
| 2011 | 3,898.8 | 55.9% | 10,658 |
| 2012 | 3,314.9 | 47.4% | 10,900 |
| 2013 | 3,509.1 | 50.3% | 10,856 |
| 2014 | 2,787 | 39.9% | 10,667 |
| 2015 | 1,796.3 | 25.7% | 10,809 |
| 2016 | 1,772.9 | 25.3% | 10,667 |
| 2017 | 1,839.5 | 26.4% | 10,908 |
| 2018 | 1,637.2 | 23.5% | 10,869 |
| 2019 | 1,193.9 | 17.1% | 11,603 |
| 2020 | 621.9 | 8.9% | 11,946 |
| 2021 | 2,083.3 | 29.8% | 10,718 |
| 2022 | 1,230.8 | 35.8% | 10,441 |
| 2023 | -1.6 | -0.2% | — |
| 2024 | -1.9 | -0.2% | — |
| 2025 | -0.6 | -0.1% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| 311 | Petroleum Liquids | GT | 28 | 24.6 | Jun 1968 | Operating (Standby / backup) | — | coming soon |
| 312 | Petroleum Liquids | GT | 28 | 28.5 | Jun 1968 | Operating (Standby / backup) | — | coming soon |
| 321 | Petroleum Liquids | GT | 28 | 28 | Jun 1968 | Operating (Standby / backup) | — | coming soon |
| 322 | Petroleum Liquids | GT | 28 | 26.7 | Jun 1968 | Operating (Standby / backup) | — | coming soon |
| 6 | Conventional Steam Coal | ST | 121 | 100 | Jan 1952 | Retired Dec 2007 | — | coming soon |
| 7 | Conventional Steam Coal | ST | 326.4 | 328 | Jun 1958 | Retired Jun 2022 | — | coming soon |
| 8 | Conventional Steam Coal | ST | 355.3 | 361 | Jul 1962 | Retired Jun 2022 | — | coming soon |
Owner / operator
Operator: Midwest Generations EME LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Midwest Generations EME LLC | 100.0% | 112 MW |
Nearby plants
Within 80 km.
| Yeoman Creek | 7 MW | 3.1 km |
| North Chicago Energy Center | 12 MW | 9.1 km |
| Cenergy IL - Zion Park District | — | 9.5 km |
| Cenergy IL - Zion CSG | 2 MW | 9.5 km |
| NL IL Lake | — | 11 km |
| Zion Landfill Gas to Energy Facility | retired | 12.3 km |