Ameren's biggest risks in the FY2024 10-K
- Ameren relies heavily on massive capital investments and regulatory approvals in Missouri and Illinois.
The risks most specific to Ameren
- REGULATORY AND LEGISLATIVE RISKS
As a result of the election to use the PISA, Ameren Missouri’s electric service business is subject to a limitation on increasing the annual revenue requirement due to the inclusion of incremental PISA deferrals in the revenue requirement
Ameren Missouri's electric service business is subject to revenue requirement limitations due to its PISA election through December 2028.
- OPERATIONAL RISKS
The construction and acquisition of, and capital improvements to, electric and natural gas utility infrastructure, along with Ameren Missouri’s ability to implement its Smart Energy Plan and its 2025 Change to the 2023 PRP, involve substantial risks
Ameren plans to invest up to $27.4 billion in capital expenditures from 2025 through 2029 across its subsidiaries.
- OPERATIONAL RISKS
Ameren Missouri’s ability to obtain an adequate supply of coal could limit operation of its coal-fired energy centers
About 97% of Ameren Missouri's coal is purchased from the Powder River Basin, exposing it to supplier and rail delivery restrictions.
- OPERATIONAL RISKS
Ameren Missouri’s ownership and operation of a nuclear energy center creates business, financial, and waste disposal risks
Ameren Missouri's ownership of the Callaway Energy Center creates risks related to nuclear operations, waste disposal, and high insurance costs.
- OPERATIONAL RISKS
Forecasted energy demand from potential new customers and electrification might not be realized. Energy conservation, energy efficiency, distributed generation, energy storage, technological advances, and other factors could reduce energy demand from our existing customers
Forecasted energy demand from data centers and electrification might not materialize while conservation reduces existing customer demand.
All 14 risk factors
Headings as the filing states them, in filing order.
REGULATORY AND LEGISLATIVE RISKS
- 01We are subject to extensive regulation of our businesses
- 02As a result of the election to use the PISA, Ameren Missouri’s electric service business is subject to a limitation on increasing the annual revenue requirement due to the inclusion of incremental PISA deferrals in the revenue requirement
- 03We are subject to business and financial risks related to the impact of climate change legislation, regulation, and emission reduction initiatives
- 04We are subject to regulatory compliance and proceedings, which could result in increasing costs, regulatory penalties, and/or other sanctions
OPERATIONAL RISKS
- 05The construction and acquisition of, and capital improvements to, electric and natural gas utility infrastructure, along with Ameren Missouri’s ability to implement its Smart Energy Plan and its 2025 Change to the 2023 PRP, involve substantial risks
- 06Our electric generation and electric and natural gas transmission and distribution facilities, including natural gas storage facilities, are subject to operational risks
- 07Ameren Missouri’s ability to obtain an adequate supply of coal could limit operation of its coal-fired energy centers
- 08Ameren Missouri’s ownership and operation of a nuclear energy center creates business, financial, and waste disposal risks
- 09Forecasted energy demand from potential new customers and electrification might not be realized. Energy conservation, energy efficiency, distributed generation, energy storage, technological advances, and other factors could reduce energy demand from our existing customers
FINANCIAL, ECONOMIC, AND MARKET RISKS
- 10Ameren’s holding company structure could limit its ability to pay common stock dividends and to service its debt obligations
- 11Significant increases in prices of labor, services, materials and supplies and other costs, including costs associated with our defined benefit retirement and postretirement plans, health care plans, and other employee benefits, could adversely affect our results of operations, financial position, or liquidity
GENERAL RISKS
- 12We are subject to employee workforce factors that could adversely affect our operations
- 13Our operations are subject to acts of sabotage, terrorism, cyber attacks, and other disruptive acts
- 14Our businesses are dependent on our ability to access the capital and credit markets successfully. We might not have access to sufficient capital on reasonable terms, and in the amounts and at the times needed
Other Ameren 10-Ks
- FY2025 10-K risk factors16 risks2 new9 reworded
Ameren Illinois faces MYRP reconciliation limits and regulatory proceedings for 2024–2027 distribution rates.
Filed Feb 18, 2026
About this page
The headings are the filing's own. The one-line readings and the overview are automated and can be wrong: read Item 1A of the 10-K for the exact wording.