Company: AILIM
Filing Date: 2025-02-18
Form Type: 10-K
Source: 0001002910-25-000055
Chunk: 60

Company: Ameren Illinois Co
Filing Date: 2025-02-18
Form: 10-K
Item: Item 8
Chunk 60
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 a regulatory rate review. For electric and natural gas related costs incurred prior to 2023 and 2022, respectively, the weighted-average remaining amortization period is two years. For electric and natural gas related costs incurred after 2023 and 2022, respectively, the amortization period will be determined in a future regulatory rate review.(aa)Funds collected for the purchase of renewable energy credits and zero emission credits through IPA procurements. The balance will be amortized as the credits are purchased. Pursuant to the CEJA, if funds collected from customers are not used to procure renewable energy credits, they would be refunded to customers pursuant to an annual reconciliation proceeding, the latest of which was approved by the ICC in January 2025 and did not result in refunds to customers.(ab)Funds collected from the issuance of securitized utility tariff bonds by AMF primarily to pay for the decommissioning of the Rush Island Energy Center. The amortization period for the difference between the estimated costs and the actual costs incurred will be determined in a future regulatory rate review.

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NOTE 3 – PROPERTY, PLANT, AND EQUIPMENT, NET

The following table presents components of “Property, plant, and equipment, net” at December 31, 2024 and 2023:AmerenMissouriAmerenIllinoisOtherAmeren2024Property, plant, and equipment at original cost(a):Electric generation:Coal(b)$3,556 $— $— $3,556 Natural gas938 — — 938 Nuclear5,931 — — 5,931 Renewable(c)2,901 19 — 2,920 Electric distribution9,469 8,160 — 17,629 Electric transmission2,406 5,725 2,031 10,162 Natural gas776 4,421 — 5,197 Other(d)2,427 1,770 260 4,457 28,404 20,095 2,291 50,790 Less: Accumulated depreciation and amortization10,875 5,184 436 16,495 17,529 14,911 1,855 34,295 Construction work in progress:Nuclear fuel in progress268 — — 268 Other991 619 131 1,741 Property, plant, and equipment, net