Company: AILIM
Filing Date: 2025-02-18
Form Type: 10-K
Source: 0001002910-25-000055
Chunk: 124

Company: Ameren Illinois Co
Filing Date: 2025-02-18
Form: 10-K
Item: Item 8
Chunk 124
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AmerenBeginning balance at January 1$12 $18 $30 $13 $18 $31 Bad debt expense11 28 39 11 40 51 Charged to other accounts(b)— 8 8 — 5 5 Net write-offs(11)(36)(47)(12)(45)(57)Ending balance at December 31$12 $18 $30 $12 $18 $30 (a)Ameren Illinois has rate-adjustment mechanisms that allow it to recover the difference between its actual net bad debt write-offs under GAAP, including those associated with receivables purchased from alternative retail electric suppliers, and the amount of net bad debt write-offs included in its base rates.(b)Amounts associated with the allowance for doubtful accounts related to receivables purchased by Ameren Illinois from alternative retail electric suppliers, as required by the Illinois Public Utilities Act.

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Table of Contents

LeasesAmeren and Ameren Missouri have lease agreements primarily relating to rail cars and land related to solar generation facilities. The land leases are related to the Cass County, Boomtown, and Huck Finn energy centers. See Note 2 – Rate and Regulatory Matters for additional information on the acquisitions. Rail cars are leased for the transportation of coal to its energy centers. For rail car leases, we account for the lease and non-lease components as a single lease component, and for the land leases related to solar generation projects, we account for the components separately for each agreement. Certain of the land leases related to the acquisitions of the Cass County, Boomtown, and Huck Finn energy centers have options to renew or terminate those leases. Termination and renewal options are not expected to be exercised and are not included in any of the lease measurements used to record the leased assets and liabilities in the tables below.The following table provides supplemental balance sheet information related to operating leases as of December 31, 2024:AmerenAmeren MissouriOther assets$72 $69 Other current liabilities5 4 Other deferred credits and liabilities67 65 Weighted average remaining operating lease term29 years30 yearsWeighted average discount rate(a)5.3 %5.3 %(a)As an implicit rate is not readily determinable under most of our lease agreements, we use our incremental borrowing rate based on the information available at commencement date in determining the present value of lease payments. We use an implicit rate when readily determinable