Company: AILIM
Filing Date: 2025-08-04
Form Type: 10-Q
Source: 0001002910-25-000112
Chunk: 132

Company: Ameren Illinois Co
Filing Date: 2025-08-04
Form: 10-Q
Item: Part I, Item 1
Chunk 132
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 (estimate)(c)11 — — — — 11 Transmission service charges (not included in the FAC)2 — — — — 2 Off-system sales, capacity, and FAC revenues, net599 — — — — 599 Ameren Illinois energy-efficiency program investment revenues— 4 — — — 4 Rush Island Energy Center base rate revenue deferral(26)— — — — (26)Securitized utility tariff bond surcharges24 — — — — 24 RESRAM(d)(7)— — — — (7)Other4 9 — — (4)9 Cost recovery mechanisms – offset in fuel and purchased power(e)(18)75 — — (23)34 Other cost recovery mechanisms(f)(3)11 — — — 8 Total electric revenue change$630 $130 $— $42 $(27)$775 Natural gas revenue change:Effect of weather (estimate)(c)9 — — — — 9 VBA— — 6 — — 6 Other— — 1 — — 1 Cost recovery mechanisms – offset in natural gas purchased for resale(e)(5)— 22 — — 17 Other cost recovery mechanisms(f)— — 1 — — 1 Total natural gas revenue change$4 $— $30 $— $— $34 

(a)Includes an increase in transmission revenues of $16 million and $39 million at Ameren Illinois for the three and six months ended June 30, 2025, respectively, compared with the year-ago periods.

(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