Company: AILIM
Filing Date: 2025-05-05
Form Type: 10-Q
Source: 0001002910-25-000098
Chunk: 64

Company: Ameren Illinois Co
Filing Date: 2025-05-05
Form: 10-Q
Item: Part I, Item 1
Chunk 64
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 annualized basis, these changes reflect an increase in “Depreciation and amortization” of approximately $70 million, among other expense changes, on Ameren’s and Ameren Missouri’s consolidated statements of income.2024 Natural Gas Delivery Service Regulatory Rate ReviewIn September 2024, Ameren Missouri filed a request with the MoPSC seeking approval to increase its annual revenues for natural gas delivery service. In May 2025, Ameren Missouri filed an updated request seeking approval to increase its annual revenues for natural gas delivery service by $38 million. The natural gas rate increase request is based on a 10.25% ROE, a capital structure composed of 52% common equity, a rate base of $525 million, and a test year ended March 31, 2024, with certain pro-forma adjustments allowed through the true-up date of December 31, 2024. The request includes the continued use of all of Ameren Missouri’s existing riders and trackers. The natural gas rate increase request reflects investments in infrastructure to ensure the safe delivery of natural gas.In May 2025, the MoPSC staff recommended an increase to Ameren Missouri’s annual revenues for natural gas delivery service of $32 million based on a 9.64% ROE, a capital structure composed of 52% common equity as of the true-up date of December 31, 2024, and a rate base of $482 million. The MoPSC staff supported the continued use of all of Ameren Missouri’s existing riders and trackers.The MoPSC proceeding relating to the proposed natural gas delivery service rate changes will take place over 11 months, with a decision by the MoPSC expected by August 2025 and new rates effective by September 2025. Ameren Missouri cannot predict the level of any natural gas delivery service rate change the MoPSC may approve, whether the requested regulatory recovery mechanisms will be continued, or whether any rate change that may eventually be approved will be sufficient for Ameren Missouri to recover its costs and earn a reasonable return on its investments when the rate change goes into effect.

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Generation FacilitiesAmeren Missouri, and certain subsidiaries of Ameren Missouri, are parties to agreements to acquire and/or construct various generation facilities. The solar generation facilities are eligible for recovery under the PISA. The Castle Bluff Natural Gas Project is also eligible for recovery under the PISA pursuant to Missouri Senate Bill 4 discussed above. The following table provides information with respect to