Company: AILIM
Filing Date: 2025-02-18
Form Type: 10-K
Source: 0001002910-25-000055
Chunk: 61

Company: Ameren Illinois Co
Filing Date: 2025-02-18
Form: 10-K
Item: Item 8
Chunk 61
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$18,788 $15,530 $1,986 $36,304 2023Property, plant, and equipment at original cost(a):Electric generation:Coal(b)$3,452 $— $— $3,452 Natural gas921 — — 921 Nuclear5,879 — — 5,879 Renewable(c)1,973 11 — 1,984 Electric distribution8,638 7,820 — 16,458 Electric transmission2,134 5,381 1,993 9,508 Natural gas688 4,186 — 4,874 Other(d)2,191 1,657 255 4,103 25,876 19,055 2,248 47,179 Less: Accumulated depreciation and amortization(f)10,243 4,783 400 15,426 15,633 14,272 1,848 31,753 Construction work in progress:Nuclear fuel in progress173 — — 173 Other914 360 46 1,320 Plant to be abandoned, net(e)530 — — 530 Property, plant, and equipment, net$17,250 $14,632 $1,894 $33,776 (a)The estimated lives for each asset group are as follows: 5 to 72 years for electric generation, excluding Ameren Missouri’s hydroelectric generating assets, which have useful lives of up to 150 years; 20 to 80 years for electric distribution; 50 to 75 years for electric transmission; 20 to 80 years for natural gas; and 2 to 55 years for other.(b)Includes $30 million and $29 million of oil-fired generation at December 31, 2024 and 2023, respectively.(c)Renewable includes hydroelectric, wind, solar, and methane gas generation facilities.(d)Other property, plant, and equipment includes assets used to support electric and natural gas services.(e)Represents the net book value of the Rush Island Energy Center as Ameren Missouri retired the energy center in October 2024, significantly in advance of its previously expected useful life. See Plant to be Abandoned, Net under Note 1 – Summary of Significant Accounting Policies, NSR and Clean Air Act Litigation under Note 14