| Energy Center | Location | Began Operation |
| Coal Fired | ||
| Labadie | Franklin County, Mo. | 1970 |
| Rush Island | Jefferson County, Mo. | 1976 |
| Sioux | St. Charles County, Mo. | 1967 |
| Meramec | St. Louis County, Mo. | 1953 |
| Renewables | ||
| Keokuk (hydroelectric) | Keokuk, Iowa | 1913 |
| Maryland Heights (landfill gas) | St. Louis County, Mo. |
2012 |
| O'Fallon (solar) | O'Fallon, Mo. | 2014 |
|
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| Hydroelectric |
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| Osage |
Lakeside, Mo. | 1931 |
| Taum Sauk (pumped storage) | Reynolds County, Mo. |
1963 |
| Nuclear | ||
| Callaway County, Mo. | 1984 | |
| Natural Gas - CTGs | ||
| Audrain | Mexico | |
| Fairgrounds | Moberly | |
| Goose Creek | Moreau | |
| Kinmundy | Peno Creek | |
| Meramec | Raccoon Creek | |
| Venice | ||