Company: AILIM
Filing Date: 2025-05-05
Form Type: 10-Q
Source: 0001002910-25-000098
Chunk: 15

Company: Ameren Illinois Co
Filing Date: 2025-05-05
Form: 10-Q
Item: Part I, Item 2
Chunk 15
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 and Ameren Illinois Electric Distribution, as discussed below. 

Ameren Missouri

Ameren Missouri’s fuel and purchased power expenses increased $164 million, or 99%, for the three months ended March 31, 2025, compared with the year-ago period.

The following items increased Ameren Missouri’s fuel and purchased power expense between periods:

•Energy costs increased $165 million primarily due to higher spring capacity prices, which were set by annual MISO auctions. Ameren Missouri’s 5% exposure to net energy cost variances under the FAC is the difference between “Off-system sales, capacity, transmission, and FAC revenues, net” and “Energy costs (excluding the estimated effect of weather)”. These results had an immaterial impact on earnings between periods.

•Fuel and purchased power expenses increased an estimated $8 million due to an increase in electric retail sales as a result of colder winter temperatures.

•Transmission service charges (not included in the FAC) increased $3 million due to higher transmission rates related to increased revenue requirements of other MISO transmission operators.

“Cost recovery mechanisms — offset in electric revenue” decreased $12 million for the three months ended March 31, 2025, compared with the year-ago period, due to decreased amortization of costs previously deferred under the FAC. The changes to “Cost recovery mechanisms - offset in electric revenue” are fully offset by “Cost recovery mechanisms - offset in fuel and purchased power” in electric revenues.

Ameren Illinois Electric Distribution

Ameren Illinois Electric Distribution’s purchased power expenses increased $20 million, or 10%, for the three months ended March 31, 2025, compared with the year-ago period, primarily due to higher volumes (+$17 million) related to residential and small commercial customers switching from alternative retail electric suppliers to Ameren Illinois’ supplied power, and increased intersegment transmission service charges (+$9 million), partially offset by decreased energy prices (-$6 million), which largely reflect the results of IPA procurement events. The changes to “Cost recovery mechanisms - offset in electric revenue” are fully offset by changes to “Cost recovery mechanisms - offset in fuel and purchased power” in electric revenues.

48

Natural Gas Purchased for Resale

The following table presents the increases (decreases) by Ameren segment for natural gas purchased for resale for the three months ended March 31, 2025, compared with the year-ago period:

Three MonthsAmeren MissouriAmeren