AMEREN CORP
For the period ended Dec 31, 2025. Filed Feb 18, 2026.
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FY2025 · Filed Feb 18, 2026
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Operating Statistics
The following tables present key electric and natural gas operating statistics for Ameren for the past three years:
| Electric Operating Statistics – Year Ended December 31, | 2025 | 2024 | 2023 |
|---|---|---|---|
| Electric Sales – kilowatthours (in millions): | |||
| Ameren Missouri: | |||
| Residential | 13,675 | 13,041 | 12,839 |
| Commercial | 13,972 | 13,620 | 13,466 |
| Industrial | 4,087 | 4,096 | 3,977 |
| Street lighting and public authority | 62 | 65 | 71 |
| Ameren Missouri retail load subtotal | 31,796 | 30,822 | 30,353 |
| Off-system sales | 3,466 | 4,011 | 4,145 |
| Ameren Missouri total | 35,262 | 34,833 | 34,498 |
| Ameren Illinois Electric Distribution(a): | |||
| Residential | 11,516 | 10,945 | 10,774 |
| Commercial | 11,755 | 11,631 | 11,602 |
| Industrial | 10,485 | 10,949 | 10,740 |
| Street lighting and public authority | 398 | 386 | 385 |
| Ameren Illinois Electric Distribution total | 34,154 | 33,911 | 33,501 |
| Eliminate affiliate sales | — | — | (30) |
| Ameren total | 69,416 | 68,744 | 67,969 |
| Electric Operating Revenues (in millions): | |||
| Ameren Missouri: | |||
| Residential | $1,839 | $1,638 | $1,577 |
| Commercial | 1,450 | 1,313 | 1,280 |
| Industrial | 342 | 311 | 306 |
| Other, including street lighting and public authority | 88 | 100 | 124 |
| Ameren Missouri retail load subtotal | $3,719 | $3,362 | $3,287 |
| Off-system sales and capacity | 912 | 485 | 407 |
| Ameren Missouri total | $4,631 | $3,847 | $3,694 |
| Ameren Illinois Electric Distribution: | |||
| Residential | $1,483 | $1,254 | $1,344 |
| Commercial | 785 | 680 | 747 |
| Industrial | 199 | 178 | 186 |
| Other, including street lighting and public authority | (68) | (23) | (59) |
| Ameren Illinois Electric Distribution total | $2,399 | $2,089 | $2,218 |
| Ameren Transmission: | |||
| Ameren Illinois Transmission(b) | $637 | $564 | $480 |
| ATXI | 226 | 218 | 198 |
| Eliminate affiliate revenues | (1) | (1) | (1) |
| Ameren Transmission total | $862 | $781 | $677 |
| Other and intersegment eliminations | (224) | (177) | (150) |
| Ameren total | $7,668 | $6,540 | $6,439 |
(a)Sales for which power was supplied by Ameren Illinois as well as alternative retail electric suppliers. In 2025, 2024, and 2023, Ameren Illinois procured power on behalf of its customers for 28%, 25%, and 28%, respectively, of its total kilowatthour sales.
(b)Includes $160 million, $119 million, and $113 million in 2025, 2024, and 2023, respectively, of electric operating revenues from transmission services provided to Ameren Illinois Electric Distribution.
| Electric Operating Statistics – Year Ended December 31, · 2025 · 2024 · 2023 | ||||||
|---|---|---|---|---|---|---|
| Ameren Missouri fuel costs (cents per kilowatthour generated)(a) | 1.34 | ¢ | 1.27 | ¢ | 1.29 | ¢ |
| Source of Ameren Missouri energy supply: | ||||||
| Coal | 56.5% | 50.5% | 54.6% | |||
| Nuclear | 19.4 | 29.1 | 25.6 | |||
| Hydroelectric | 3.5 | 3.5 | 2.4 | |||
| Wind | 3.6 | 4.4 | 4.9 | |||
| Natural gas | 1.8 | 1.0 | 1.1 | |||
| Methane gas and solar | 3.0 | 0.2 | 0.2 | |||
| Purchased power – wind | — | 0.4 | 0.6 | |||
| Purchased power – other | 12.2 | 10.9 | 10.6 | |||
| Ameren Missouri total | 100.0% | 100.0% | 100.0% | |||
(a) Ameren Missouri fuel costs exclude $(96) million, $34 million, and $72 million in 2025, 2024, and 2023, respectively, for changes in FAC recoveries.
| Natural Gas Operating Statistics – Year Ended December 31, | 2025 | 2024 | 2023 |
|---|---|---|---|
| Natural Gas Sales – dekatherms (in millions): | |||
| Ameren Missouri: | |||
| Residential | 7 | 6 | 6 |
| Commercial | 4 | 3 | 3 |
| Industrial | 1 | 1 | 1 |
| Transport | 9 | 8 | 9 |
| Ameren Missouri total | 21 | 18 | 19 |
| Ameren Illinois Natural Gas: | |||
| Residential | 52 | 47 | 47 |
| Commercial | 16 | 14 | 14 |
| Industrial | 3 | 3 | 3 |
| Transport | 100 | 99 | 99 |
| Ameren Illinois Natural Gas total | 171 | 163 | 163 |
| Ameren total | 192 | 181 | 182 |
| Natural Gas Operating Revenues (in millions): | |||
| Ameren Missouri: | |||
| Residential | $101 | $90 | $100 |
| Commercial | 44 | 37 | 46 |
| Industrial | 5 | 4 | 5 |
| Transport and other | 14 | 15 | 14 |
| Ameren Missouri total | $164 | $146 | $165 |
| Ameren Illinois Natural Gas: | |||
| Residential | $680 | $661 | $657 |
| Commercial | 185 | 166 | 164 |
| Industrial | 12 | 10 | 14 |
| Transport and other | 91 | 101 | 62 |
| Ameren Illinois Natural Gas total | $968 | $938 | $897 |
| Other and intercompany eliminations | (1) | (1) | (1) |
| Ameren total | $1,131 | $1,083 | $1,061 |
| Rate Base Statistics – At December 31, | 2025 | 2024 | 2023 |
| Rate Base (in billions): | |||
| Electric transmission and distribution | $20.3 | $18.5 | $17.5 |
| Natural gas transmission and distribution | 3.5 | 3.3 | 3.2 |
| Coal generation: | |||
| Labadie Energy Center | 1.1 | 1.0 | 0.9 |
| Sioux Energy Center | 0.5 | 0.6 | 0.6 |
| Rush Island Energy Center (retired in October 2024) | — | — | 0.4 |
| Coal generation total | 1.6 | 1.6 | 1.9 |
| Nuclear generation | 1.6 | 1.5 | 1.5 |
| Renewable generation (hydroelectric, wind, solar, methane gas) | 2.4 | 2.4 | 1.4 |
| Natural gas generation | 0.4 | 0.4 | 0.3 |
| Rate base total | $29.8 | $27.7 | $25.8 |
The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.