- Combustion
- Operating
- 10 · 100 · 1,000 MW
Map
- Combustion
- Operating
Sioux: location. Basemap: Protomaps, © OpenStreetMap contributors, ODbL.
Sioux
Power plant · Coal
Key facts
Power plant · Coalran 41% of 2025 Retiring- Capacity
- Capacity: sourceEIA-860M · Open licenseMW
- Commissioned
- 1967
- Net generation, 2025
- 3,986,364 MWh
- Grid
- 138 kV to Union Electric Co - (MO) (MISO)
- Location
- St Charles County, Missouri
- Operated by
- Union Electric Co - (MO)
Operations
- Net generation, 2025
- 3,986,364
MWh - Fuel burned, 2025
- 40,567,081
MMBtu - Capacity factor, 2025
- 41.4
% - Heat rate, 2025
- 10,176
Btu/kWh
| Year | Net generation (MWh) | Fuel burned (MMBtu) | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|---|
| 2026 (8 of 12 months) | 2,592,992 | 27,848,427 | — | 10,740 |
| 2025 | 3,986,364 | 40,567,081 | 41.4% | 10,176 |
| 2024 | 3,337,571 | 34,724,993 | 34.6% | 10,404 |
| 2023 | 3,050,511 | 31,818,173 | 31.7% | 10,430 |
| 2022 | 3,665,843 | 37,327,708 | 38.1% | 10,183 |
| 2021 | 3,886,900 | 46,170,373 | 40.4% | 11,878 |
| 2020 | 2,749,389 | 35,500,684 | 28.5% | 12,912 |
| 2019 | 3,885,566 | 44,843,663 | 40.4% | 11,541 |
| 2018 | 5,664,891 | 62,970,911 | 58.8% | 11,116 |
| 2017 | 4,978,092 | 56,011,079 | 51.7% | 11,252 |
| 2016 | 4,549,155 | 52,394,066 | 47.1% | 11,517 |
| 2015 | 4,495,381 | 51,148,079 | 46.7% | 11,378 |
| 2014 | 4,964,295 | 54,700,252 | 51.5% | 11,019 |
| 2013 | 5,080,395 | 53,978,309 | 52.8% | 10,625 |
| 2012 | 4,905,611 | 50,619,261 | 50.8% | 10,319 |
| 2011 | 5,209,936 | 53,704,141 | 54.1% | 10,308 |
| 2010 | 5,733,024 | 59,321,140 | 59.5% | 10,347 |
| 2009 | 5,760,507 | 59,572,672 | 59.8% | 10,342 |
| 2008 | 5,848,633 | 58,969,809 | 60.6% | 10,083 |
| 2007 | 6,643,346 | 66,271,190 | 69.0% | 9,976 |
| 2006 | 6,398,439 | 62,094,095 | 66.4% | 9,705 |
| 2005 | 6,636,478 | 66,295,679 | 68.9% | 9,990 |
| 2004 | 6,226,046 | 62,118,905 | 64.5% | 9,977 |
| 2003 | 6,332,833 | 60,585,566 | 65.8% | 9,567 |
| 2002 | 6,296,711 | 62,614,668 | 65.4% | 9,944 |
| 2001 | 5,645,812 | 57,080,307 | 58.6% | 10,110 |
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
3 sourcesSources
- EIA-860M Preliminary Monthly Electric Generator Inventory
- Global Energy Monitor — Global Integrated Power Tracker (unit-level power plants, eight technologies, all statuses)Global Integrated Power Tracker, Global Energy Monitor, September 2026 release (https://globalenergymonitor.org/projects/global-integrated-power-tracker), CC BY 4.0. Modified by Inframation: TransitionZero-sourced rows removed; statuses and technologies mapped to Inframation's vocabulary; figures aggregated. Copyright © Global Energy Monitor. Global Integrated Power Tracker, September 2026 release. Distributed under a Creative Commons Attribution 4.0 International License.
- 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)