- Combustion
- Operating
- 10 · 100 · 1,000 MW
Map
- Combustion
- Operating
Interstate: location. Basemap: Protomaps, © OpenStreetMap contributors, ODbL.
Interstate
Power plant · Gas, combustion turbine
Key facts
Power plant · Gas, combustion turbineran 5% of 2025 Operating- Capacity
- Capacity: sourceEIA-860M · Open licenseMW
- Commissioned
- 1997
- Net generation, 2025
- 57,526 MWh
- Grid
- 138 kV to City of Springfield - (IL) (MISO)
- Location
- Sangamon County, Illinois
- Operated by
- City of Springfield - (IL)
Operations
- Net generation, 2025
- 57,526
MWh - Fuel burned, 2025
- 718,079
MMBtu - Capacity factor, 2025
- 4.7
% - Heat rate, 2025
- 12,483
Btu/kWh
| Year | Net generation (MWh) | Fuel burned (MMBtu) | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|---|
| 2025 | 57,526 | 718,079 | 4.7% | 12,483 |
| 2024 | 50,816 | 755,277 | 4.2% | 14,863 |
| 2023 | 39,520 | 556,145 | 3.2% | 14,072 |
| 2022 | 1,365 | 13,499 | 0.1% | 9,889 |
| 2021 | 1,152 | 12,414 | 0.1% | 10,776 |
| 2020 | 28,999 | 36,860,972 | 2.4% | — |
| 2019 | 10,946 | 132,171 | 0.9% | 12,075 |
| 2018 | 30,355 | 389,257 | 2.5% | 12,824 |
| 2017 | 18,446 | 232,721 | 1.5% | 12,616 |
| 2016 | 44,347 | 600,259 | 3.6% | 13,536 |
| 2015 | 21,373 | 260,294 | 1.8% | 12,179 |
| 2014 | 8,825 | 114,572 | 0.7% | 12,983 |
| 2013 | 7,355 | 108,212 | 0.6% | 14,713 |
| 2012 | 7,621 | 106,098 | 0.6% | 13,922 |
| 2011 | 15,714 | 194,422 | 1.3% | 12,372 |
| 2010 | 31,802 | 412,319 | 2.6% | 12,965 |
| 2009 | 5,617 | 73,956 | 0.5% | 13,166 |
| 2008 | 11,403 | 148,678 | 0.9% | 13,038 |
| 2007 | 19,010 | 240,885 | 1.6% | 12,672 |
| 2006 | 10,334 | 139,557 | 0.9% | 13,505 |
| 2005 | 20,840 | 305,004 | 1.7% | 14,636 |
| 2004 | 3,900 | 51,235 | 0.3% | 13,137 |
| 2003 | 9,993 | 127,081 | 0.8% | 12,717 |
| 2002 | 9,111 | 123,726 | 0.8% | 13,580 |
| 2001 | 23,323 | 312,903 | 1.9% | 13,416 |
How these are worked out
Net generation and fuel burned are the monthly figures EIA publishes in its bulk electricity file, from the plant's Form 923 reports; a year is the sum of its months. Capacity factor is a full year's net generation over today's nameplate capacity times the hours in that year (8,784 in a leap year), so a plant uprated or partly retired since reads against its current size; heat rate is fuel burned over net generation, for plants that burn fuel. A year with fewer than twelve months stated has no capacity factor, and a value outside the plausible range is left blank rather than shown. By month, the charts apply the same rules to each month's own hours and fuel.
Sources
2 sourcesSources
- EIA-860M Preliminary Monthly Electric Generator Inventory
- EIA Open Data bulk file — Electricity (ELEC.zip; monthly plant net generation and fuel consumption since 2001)Source: U.S. Energy Information Administration, Electricity bulk data (Form EIA-923 monthly plant series)