Mars Snackfood US
Cook County, Illinois · EIA plant ID 54855 · Operator: M&M Mars Inc
Nameplate4MWSummer 3 MW
Generators1in service
Net generation—GWh12 mo
Capacity factor—no 923 generation in the last 12 months
Heat rate—Btu/kWhfossil units, electric fuel, HHV
First online1987
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), primary-fuel 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 | 28.5 | 108.6% | 13,431 |
| 2002 | 29.9 | 113.6% | — |
| 2003 | 0 | 0.0% | — |
| 2004 | 28.8 | 109.3% | 6,243 |
| 2005 | 26.4 | 100.4% | 6,243 |
| 2006 | 17.8 | 67.6% | 6,243 |
| 2007 | 24.7 | 93.9% | 6,118 |
| 2008 | 21.9 | 83.1% | 6,118 |
| 2009 | 18.8 | 71.4% | 6,118 |
| 2010 | 20.3 | 77.3% | 6,243 |
| 2011 | 19.2 | 73.2% | 6,243 |
| 2012 | 25.2 | 95.8% | 6,243 |
| 2013 | 27.3 | 103.8% | 6,243 |
| 2014 | 27.7 | 105.3% | 6,243 |
| 2015 | 27.7 | 105.5% | 6,243 |
| 2016 | 27.6 | 104.9% | 6,003 |
| 2017 | 26.2 | 99.7% | 6,003 |
| 2018 | 16 | 60.9% | 6,003 |
| 2019 | 18.2 | 69.4% | 6,003 |
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 | 3.5 | 3 | May 1987 | Operating (Out of service, expected back within the year) | — | coming soon |
Owner / operator
Operator: M&M Mars Inc. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| M&M Mars Inc | 100.0% | 4 MW |
Nearby plants
Within 80 km.
| Lowe's - 1845 - Chicago Brickyard, IL | 1 MW | 1.3 km |
| Triton East and West Cogen | 4 MW | 4.4 km |
| 2065 George St Community Solar | 3 MW | 4.6 km |
| Albertsons at Melrose Park | 2 MW | 5.3 km |
| W Belmont Ave | — | 5.5 km |
| Franklin Park 2-SLCHI802 | — | 6.5 km |