Company: AILIM
Filing Date: 2025-02-18
Form Type: 10-K
Source: 0001002910-25-000055
Chunk: 273

Company: Ameren Illinois Co
Filing Date: 2025-02-18
Form: 10-K
Item: Item 7
Chunk 273
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 and was partially offset by an $83 million decrease due to the timing of nuclear fuel expenditures.

Ameren Illinois’ cash used in investing activities decreased $267 million during 2024, compared with 2023, due to a decrease in capital expenditures, largely resulting from decreased expenditures for electric transmission infrastructure upgrades. Ameren Illinois’ capital expenditures also decreased as a result of reduced expenditures for electric distribution infrastructure upgrades and natural gas infrastructure upgrades due to steps taken by Ameren Illinois to align its 2024 operations with the ICC’s MYRP orders and November 2023 natural gas rate order, and due to decreased storm-related expenditures of $92 million.

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Table of Contents

Capital Expenditures

The following charts present our capital expenditures for the years ended December 31, 2024 and 2023:

2024 – Total Ameren $4,319(a)2023 – Total Ameren $3,597(a)

Ameren Missouri(b)Ameren Illinois Natural GasATXI and other electric transmission subsidiariesAmeren Illinois Electric DistributionAmeren Illinois Transmission

(a)Includes Other capital expenditures of $6 million and $(18) million for the years ended December 31, 2024 and 2023, respectively, which includes amounts for the elimination of intercompany transfers.

Ameren’s 2024 capital expenditures consisted of expenditures made by its subsidiaries, including $134 million by ATXI and other electric transmission subsidiaries. Ameren’s 2023 capital expenditures consisted of expenditures made by its subsidiaries, including $124 million by ATXI and other electric transmission subsidiaries. In both years, capital expenditures were made principally to maintain, upgrade, and improve the reliability of the transmission and distribution systems of Ameren Missouri and Ameren Illinois by investing in substation upgrades, energy center projects, and smart-grid technology. Additionally, the Ameren Companies invested in various software projects.

The following table presents Ameren’s estimate of capital expenditures that will be incurred from 2025 through 2029, including construction expenditures, allowance for funds used during construction, and expenditures for compliance with existing environmental regulations:

20252026 – 2029TotalAmeren Missouri$2,455 $13,585 –$15,015 $16,040 –$17,470 Ameren Illinois Electric Distribution625 2,440 –2,695 3,065 –3,320 Ameren Illinois Natural Gas360 1,305 –1