Company: AILIM
Filing Date: 2025-11-06
Form Type: 10-Q
Source: 0001002910-25-000129
Chunk: 17

Company: Ameren Illinois Co
Filing Date: 2025-11-06
Form: 10-Q
Item: Part I, Item 2
Chunk 17
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 nine months ended September 30, 2025 (except where a specific period is referenced):

•In accordance with the June 2024 MoPSC financing order, revenues decreased $26 million for the nine months ended September 30, 2025, due to the deferral of base rate revenues to a regulatory liability related to the Rush Island Energy Center since its October 15, 2024 retirement date. The deferral ended with new rates effective June 1, 2025.

•Revenues associated with “Cost recovery mechanisms – offset in fuel and purchased power” decreased $19 million for the nine months ended September 30, 2025, due to decreased revenue related to the amortization of costs previously deferred under the FAC that were reflected in customer rates. The changes to “Cost recovery mechanisms - offset in fuel and purchased power” are fully offset by changes to “Cost recovery mechanisms - offset in electric revenue” in fuel and purchased power.

•RESRAM revenues decreased $10 million and $17 million, respectively. These changes are largely offset by changes in the “Depreciation and amortization” section of the statement of income.

Ameren Illinois

Ameren Illinois’ electric revenues increased $157 million, or 23%, and $304 million, or 16%, for the three and nine months ended September 30, 2025, respectively, compared with the year-ago periods, driven by increased revenues at Ameren Illinois Electric Distribution and Ameren Illinois Transmission.

Ameren Illinois Electric Distribution

Ameren Illinois Electric Distribution’s revenues increased $147 million, or 27%, and $277 million, or 18%, for the three and nine months ended September 30, 2025, respectively, compared with the year-ago periods.

The following items increased Ameren Illinois Electric Distribution’s revenues for the three and nine months ended September 30, 2025:

•Revenues associated with “Cost recovery mechanisms – offset in fuel and purchased power” increased $126 million and $201 million, respectively, due to increased purchased power expenses recovered from customers. The increase in electric revenues are fully offset by an increase in purchased power expenses under cost recovery mechanisms for purchased power, as discussed below.

•Base rates increased revenues by $23 million and $54 million, respectively, due to higher recoverable non-purchased power expenses 

(+$22 million and +$46 million, respectively) and increased capital investment (+$1 million