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Rate and Regulatory Matters (Tables) | 3 Months Ended
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Mar. 31, 2023
Regulated Operations [Abstract] |
Schedule of Solar Projects | The following table provides information with respect to each build-transfer agreement:
|  | Boomtown Solar Project(a) | Huck Finn Solar Project(b)
Agreement date |  | February 2022 | June 2022
Developer |  | Invenergy Renewables, LLC | EDF Renewables, Inc.
Facility size |  | 150-MW | 200-MW
Location |  | Southeastern Illinois | Central Missouri
Status of MoPSC CCN |  | Approved April 2023 | Approved February 2023
Status of FERC approval of acquisition |  | Expect to request by mid-2023 | Received March 2023
Expected completion date(c) |  | As early as fourth quarter 2024 | As early as fourth quarter 2024
(a)The Boomtown Solar Project is expected to support Ameren Missouri’s transition to renewable energy generation and serve customers under the Renewable Solutions Program discussed below. (b)The Huck Finn Solar Project represents approximately $0.35 billion of capital expenditures and is expected to support Ameren Missouri’s compliance with the state of Missouri’s requirement of achieving 15% of retail sales from renewable energy sources, of which 2% must be derived from solar energy sources. (c)The expected completion dates may be impacted by the timing of FERC approval for the Boomtown Solar Project and potential sourcing issues resulting from a United States Department of Commerce investigation of solar panel components imported from four Southeast Asian countries initiated in March 2022 and the detention of certain solar panel components sourced from China as a result of the Uyghur Forced Labor Prevention Act that became effective in June 2022.
Schedule of MYRP details | The following table includes the forecasted revenue requirement, the requested ROE, the requested capital structure common equity percentage, and the forecasted average annual rate base for 2024 through 2027, as reflected in Ameren Illinois’ MYRP:
Year | Forecasted Revenue Requirement (in millions) | Requested ROE | Requested Capital Structure Common Equity Percentage(a) | Forecasted Average Annual Rate Base (in billions)
2024 | $1,282 | 10.5% | 53.99% | $4.3
2025 | $1,373 | 10.5% | 53.97% | $4.6
2026 | $1,477 | 10.5% | 54.02% | $5.0
2027 | $1,556 | 10.5% | 54.03% | $5.3
(a)A capital structure of up to and including 50% common equity is deemed prudent and reasonable by law. A higher equity ratio requires specific ICC approval.

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