Company: AILIM
Filing Date: 2025-05-05
Form Type: 10-Q
Source: 0001002910-25-000098
Chunk: 10

Company: Ameren Illinois Co
Filing Date: 2025-05-05
Form: 10-Q
Item: Part I, Item 2
Chunk 10
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)(12)20 — — (10)(2)Other cost recovery mechanisms(f)3 13 — — — 16 Total electric revenue change$179 $66 $— $25 $(12)$258 Natural gas revenue change:Base rates (estimate)$— $— $1 $— $— $1 Effect of weather (estimate)(c)7 — — — — 7 Other— — 2 — — 2 Cost recovery mechanisms – offset in natural gas purchased for resale(e)(4)— 16 — — 12 Other cost recovery mechanisms(f)— — 1 — — 1 Total natural gas revenue change$3 $— $20 $— $— $23 

(a)Includes an increase in transmission revenues of $23 million at Ameren Illinois for the three months ended March 31, 2025, compared with the year-ago period.

(b)For Ameren Illinois Electric Distribution and Ameren Transmission, base rates include increases or decreases in operating revenues related to the revenue requirement reconciliation adjustment under the MYRP and formula rates, respectively. For Ameren Missouri, base rates exclude an increase for the recovery of lost electric revenue, less the associated fuel and purchased power expenses, resulting from the MEEIA customer energy-efficiency programs and a decrease in base rates for RESRAM. These changes in Ameren Missouri base rates are included in the “Retail sales volumes and changes in customer usage patterns (excluding the estimated effects of weather and MEEIA)” and “Cost recovery mechanisms - offset in fuel and purchased power” line items, respectively.

(c)Represents the estimated variation resulting primarily from changes in cooling and heating degree-days on electric and natural gas demand compared with the year-ago period; this variation is based on temperature readings from National Oceanic and Atmospheric Administration weather stations at local airports in our service territories.

(d)The electric deferred income tax adjustment relates to certain excess deferred income taxes that will be amortized through 2025. Offsetting expense increases or decreases are reflected within “Income Taxes” on the statement of income. This item has no impact on earnings.

(e)Electric and natural gas revenue changes are offset by corresponding changes in “Fuel and purchased power” and “Natural gas purchased for resale” on the statement of income. For the three months ended March 31, 2025, activity in Other/