Altamont
Effingham County, Illinois · EIA plant ID 7990 · Operator: City of Altamont - (IL)
Nameplate7MWSummer 7 MW
Generators4in service
Net generation0GWh12 mo to Dec 2025
Capacity factor0%gas/coal/oil units, summer MW
Heat rate10,587Btu/kWhfossil units, electric fuel, HHV
First online2002Runs as rarely runs
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) |
|---|---|---|---|
| 2003 | 0 | 0.0% | 10,477 |
| 2004 | 0.1 | 0.3% | 10,542 |
| 2005 | 0.9 | 1.9% | 10,260 |
| 2006 | 0.3 | 0.5% | 10,385 |
| 2007 | 0.2 | 0.3% | 11,030 |
| 2008 | 0.1 | 0.2% | 10,940 |
| 2009 | 0.1 | 0.1% | 10,833 |
| 2010 | 0.1 | 0.2% | 10,755 |
| 2011 | 0.1 | 0.2% | 10,772 |
| 2012 | 0.1 | 0.2% | 10,957 |
| 2013 | 0.1 | 0.1% | 11,054 |
| 2014 | 0.1 | 0.2% | 11,031 |
| 2015 | 0.1 | 0.1% | 9,963 |
| 2016 | 0.1 | 0.1% | 10,815 |
| 2017 | 0.1 | 0.2% | 10,328 |
| 2018 | 0.1 | 0.1% | 10,403 |
| 2019 | 0.1 | 0.1% | 10,620 |
| 2020 | 0.1 | 0.1% | 10,621 |
| 2021 | 0.2 | 0.4% | 10,064 |
| 2022 | 0.1 | 0.1% | 10,704 |
| 2023 | 0.1 | 0.1% | 10,500 |
| 2024 | 0.1 | 0.1% | 10,696 |
| 2025 | 0.1 | 0.1% | 10,587 |
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 | Petroleum Liquids | IC | 1.8 | 1.8 | Jan 2002 | Operating (Standby / backup) | — | coming soon |
| 2 | Petroleum Liquids | IC | 1.8 | 1.8 | Jan 2002 | Operating (Standby / backup) | — | coming soon |
| 3 | Petroleum Liquids | IC | 1.8 | 1.8 | Jan 2002 | Operating (Standby / backup) | — | coming soon |
| 4 | Petroleum Liquids | IC | 1.8 | 1.8 | Nov 2006 | Operating (Standby / backup) | — | coming soon |
Owner / operator
Operator: City of Altamont - (IL). Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| City of Altamont - (IL) | 100.0% | 7 MW |
Nearby plants
Within 80 km.
| Freedom Power Project | retired | 9.7 km |
| Conagra Foods at St. Elmo | 2 MW | 10 km |
| Holland Energy Facility | 702 MW | 17.2 km |
| SV CSG Brownstown 1 | — | 25.2 km |
| Dressor Plains Solar, LLC | 99 MW | 27.1 km |
| Switchgrass Plains Solar, LLC | — | 28.5 km |