1 unchanged sentence
See also Liquidity and Capital Resources and Regulatory Matters in Management’s Discussion and Analysis of Financial Condition and Results of Operations under Part II, Item 7, of this report for a discussion of planned additions.
−Removed: See also Note 5 – Long-term Debt and Equity Financings and Note 14 – Commitments and Contingencies under Part II, Item 8, of this report.
−Removed: The following table shows the anticipated capability of our energy centers at the time of the expected 2025 peak summer electrical demand for all energy centers owned as of December 31, 2024:
−Removed: Primary Fuel Source Energy Center Location Net Kilowatt Capability (a)
+Added: See also Note 14 – Commitments and Contingencies under Part II, Item 8, of this report.
+Added: The following table shows the anticipated capability of our energy centers at the time of the expected 2026 peak summer electrical demand for all energy centers owned as of December 31, 2025, except as otherwise noted below:
+Added: Primary Fuel Source Energy Center Location Net Megawatt Capability (a)
Ameren Missouri:
14 unchanged sentences
Total wind 699
−Removed: Solar Huck Finn (e)
+Added: Solar Split Rail (e)
+Added: Warren County, Missouri 300
+Added: Huck Finn (f)
Audrain and Ralls Counties, Missouri 200
1 unchanged sentence
Cass County Cass County, Illinois 150
−Removed: Other Solar (f)
−Removed: Various 15,300
+Added: Audrain County, Missouri 50
+Added: Bowling Green (e)
+Added: Pike County, Missouri 50
+Added: Other Solar (g)
Total solar 918
1 unchanged sentence
Venice, Illinois 486
−Removed: Goose Creek (g)
+Added: Goose Creek (h)
Piatt County, Illinois 438
−Removed: Pinckneyville (g)
+Added: Pinckneyville (h)
Pinckneyville, Illinois 316
−Removed: Raccoon Creek (g)
+Added: Raccoon Creek (h)
Clay County, Illinois 304
2 unchanged sentences
Total natural gas 2,534
−Removed: Oil (CTs) Fairgrounds (h)
+Added: Oil (CTs) Fairgrounds (i)
Jefferson City, Missouri 55
12 unchanged sentences
Total Ameren 9,742
−Removed: (a) Net kilowatt capability, except for wind and solar generating facilities, is the generating capacity available for dispatch from the energy center into the electric transmission grid.
+Added: (a) Net megawatt capability, except for wind and solar generating facilities, is the generating capacity available for dispatch from the energy center into the electric transmission grid.
Capability for wind and solar generating facilities represents nameplate capacity.
1 unchanged sentence
The on-demand capability for wind and solar units is zero.
−Removed: (b) The Labadie Energy Center is scheduled to retire 1,186,000 kilowatts by 2036 and 1,186,000 kilowatts by 2042.
−Removed: (c) Ameren Missouri plans to extend the retirement date of the Sioux Energy Center from 2030 to 2032, which is subject to the approval of a change in depreciable lives of the energy center’s assets by the MoPSC in Ameren Missouri’s 2024 electric service regulatory rate review.
−Removed: See Note 2 – Rate and Regulatory Matters under Part II, Item 8, of this report for additional information on Ameren Missouri’s request to extend the retirement date of the Sioux Energy Center.
−Removed: (d) The operating licenses for the Callaway, Osage, and Taum Sauk energy centers expire in 2044, 2047, and 2044, respectively.
−Removed: (e) There were economic development arrangements applicable to this solar energy center, as discussed below.
−Removed: (f) Includes 10 solar energy centers that each have a nameplate capacity of 6,000 kilowatts or less.
−Removed: (g) The Venice Energy Center is scheduled to retire by the end of 2029 and the Goose Creek, Pinckneyville, Raccoon Creek, and Kinmundy energy centers are scheduled to retire by the end of 2039.
+Added: (b) The Labadie Energy Center is scheduled to retire 1,186 megawatts by 2036 and 1,186 megawatts by 2042.
+Added: (c) The Sioux Energy Center is scheduled to retire by 2032.
+Added: (d) The operating licenses for the Callaway, Osage, and Taum Sauk energy centers are scheduled to expire in 2044, 2047, and 2044, respectively.
+Added: (e) In February 2026, Ameren Missouri acquired the Split Rail Solar Project.
+Added: The Bowling Green and Split Rail solar projects are expected to be placed in-service in the first quarter of 2026 and in the second quarter of 2026, respectively, before 2026 peak summer electrical demand.
+Added: (f) There were economic development arrangements applicable to this solar energy center, as discussed below.
+Added: (g) Includes 10 solar energy centers that each have a nameplate capacity of 6 megawatts or less.
+Added: (h) The Venice Energy Center is scheduled to retire by the end of 2029 and the Goose Creek, Pinckneyville, Raccoon Creek, and Kinmundy energy centers are scheduled to retire by the end of 2039.
See Illinois Emissions Standards in Note 14 – Commitments and Contingencies under Part II, Item 8, of this report.
−Removed: (h) The Fairgrounds, Mexico, Moberly, and Moreau energy centers are scheduled to retire by the end of 2029.
+Added: (i) The Fairgrounds, Mexico, Moberly, and Moreau energy centers are scheduled to retire by the end of 2029.
The following table presents in-service electric and natural gas utility-related properties for Ameren Missouri and Ameren Illinois as of December 31, 2025:
20 unchanged sentences
Substantially all of the properties and plant of Ameren Missouri and Ameren Illinois are subject to the liens of the indentures securing their respective mortgage bonds.
−Removed: Ameren Missouri operates the Huck Finn Energy Center located in Audrain and Ralls Counties, Missouri.
−Removed: Ameren Missouri has rights and obligations as the operator of the energy center under long-term agreements with Audrain and Ralls Counties.
−Removed: Under the terms of these agreements, Ameren Missouri is responsible for all operation and maintenance for the energy center.
−Removed: The agreements are scheduled to expire in December 2059, at which time the property, plant, and equipment will become subject to the lien of the Ameren Missouri mortgage bond indenture.
+Added: Ameren Missouri operates the Huck Finn Energy Center located in Audrain and Ralls Counties, Missouri, and operates the Vandalia Energy Center located in Audrain County, Missouri.
+Added: Ameren Missouri has rights and obligations as the operator of the energy centers under long-term agreements with Audrain and Ralls Counties.
+Added: Under the terms of these agreements, Ameren Missouri is responsible for all operation and maintenance for both energy centers.
+Added: The Vandalia Energy Center agreement is scheduled to expire in December 2050, and the Huck Finn Energy Center agreements are scheduled to expire in December 2059, at which time the property, plant, and equipment will become subject to the lien of the Ameren Missouri mortgage bond indenture.
Compared sentence by sentence after normalising whitespace, quotation marks, case and digits, so re-formatting and restated figures do not read as changed language. Wording changes appear as one removal and one addition. The current filing and the prior one are authoritative.