Ameren Missouri计划建设2100MW天然气联合循环电站

Key Takeaways:
Ameren Missouri plans to build the West Alton Energy Center, a new 2,100-megawatt facility designed to provide dependable energy at all times of day for customers across Missouri.
The project will support reliable service during periods of high demand, extreme weather and changing grid conditions.
By expanding in-state energy production, the West Alton Energy Center will help power Missouri's growing economy while ensuring communities have the electricity they need for the future.
ST. LOUIS , July 27, 2026 /PRNewswire/ -- Ameren Missouri, a subsidiary of Ameren Corporation (NYSE: AEE), announced plans to build the West Alton Energy Center, a new combined-cycle natural gas facility. It is designed to provide reliable, around-the-clock baseload power for customers while keeping costs as low as possible, supporting economic development in the region and strengthening the company's balanced mix of energy.

In an application filed with the Missouri Public Service Commission (MoPSC), Ameren Missouri laid out details of the proposed energy center, which will ensure grid reliability as the economy grows and other energy generation facilities reach the end of their useful lives. The plans for West Alton include generating approximately 2,100 megawatts (MW) of electricity, with an anticipated completion date of 2031, pending regulatory approval. It is expected to provide more than 1,000 construction jobs over several years. Additional details about the project are available at Ameren.com/WestAlton .
"Customers count on reliable energy to keep their homes comfortable, care for their families, run their businesses and stay connected to the things that matter most," said Aaron Melda , chairman and president of Ameren Missouri. "The West Alton Energy Center is one way we're preparing for Missouri's future and supporting the growing needs of our communities. Missouri has seen incredible economic development wins over the past year, and we're pleased to support this growth."
State law and the company's Powering Missouri Growth Plan  include provisions to make sure data centers cover the costs of the infrastructure needed to serve them, protecting existing customers while providing reliable service for all.
Adding 2,100 MW of always-on generation will further improve reliability and contribute to Ameren Missouri's balanced generation mix, which is designed to optimize costs over the long term. The West Alton Energy Center will also strengthen Missouri's energy security by supplying dependable, in-state generation to serve homes, businesses and growing communities across the state.
"Projects such as the West Alton Energy Center are designed to perform under a wide range of conditions and periods of high demand," said Ajay Arora , executive vice president and chief growth and generation development officer at Ameren Missouri. "As our generation fleet evolves, this facility will add a highly efficient, Missouri-based resource that can operate 24/7 and work alongside our other resources to help maintain reliability for our customers."
The West Alton Energy Center will be built next to Ameren Missouri's Sioux Energy Center, where the company can utilize equipment and connections already on site. Doing more in one location means maximizing existing resources and more value for customers.
"Families and businesses are balancing competing priorities every day, which is why we're focused on making smart investments, controlling project costs and getting the most value from every dollar," Melda said.
Ameren Missouri's plan is designed to keep costs as low as possible for customers and recommends a financing approach that a 2024 analysis by the State of Missouri found lowers project costs by millions of dollars.
"When companies decide where to expand and create jobs, they need to know the infrastructure is in place to back their growth," Melda said. "Investments such as the West Alton Energy Center help ensure Missouri is ready for those opportunities while continuing to serve the people and businesses that already call our state home. We're committed to making those investments thoughtfully and with careful attention to costs, and the MoPSC will provide oversight throughout the process."
The project is included in Ameren Missouri's long-term energy planning process  and is designed to complement the company's investments in other generation resources, and grid modernization that supports long-term customer value.
About Ameren Missouri
St. Louis-based Ameren Corporation powers the quality of life for 2.5 million electric customers and more than 900,000 natural gas customers in a 67,700-square-mile area through its Ameren Missouri and Ameren Illinois rate-regulated utility subsidiaries. Ameren Illinois provides electric transmission and distribution service and natural gas distribution service. Ameren Missouri provides electric generation, transmission and distribution services, as well as natural gas distribution service. Ameren Transmission Company of Illinois develops, owns and operates rate-regulated regional electric transmission projects in the Midcontinent Independent System Operator, Inc. For more information, visit  Ameren.com , or follow us at  @AmerenCorp ,  Facebook.com/AmerenCorp , or  LinkedIn.com/company/Ameren .
FORWARD-LOOKING STATEMENTS
Statements in this release not based on historical facts are considered "forward-looking" and, accordingly, involve risks and uncertainties that could cause actual results to differ materially from those discussed. Although such forward-looking statements have been made in good faith and are based on reasonable assumptions, there is no assurance that the expected results will be achieved. These statements include (without limitation) statements as to future expectations, beliefs, plans, projections, strategies, targets, estimates, objectives, events, conditions, and financial performance. In connection with the "safe harbor" provisions of the Private Securities Litigation Reform Act of 1995, we are providing this cautionary statement to identify important factors that could cause actual results to differ materially from those anticipated. The following factors, in addition to those discussed under Risk Factors in Ameren Missouri's Annual Report on Form 10-K for the year ended December 31, 2025, and elsewhere in this release and in our other filings with the Securities and Exchange Commission, could cause actual results to differ materially from management expectations suggested in such forward-looking statements:
regulatory, judicial, or legislative actions, and any changes in regulatory policies and ratemaking determinations that may change regulatory recovery mechanisms or our ability to recover costs and earn a return, such as those that may result from Ameren Missouri's electric service regulatory rate review filed with the Missouri Public Service Commission ("MoPSC") in June 2026;
our ability to control costs and make substantial investments in our businesses, including our ability to recover costs and investments, and to earn our allowed returns on equity, within frameworks established by our regulators, while maintaining affordability for our customers;
the effect on Ameren Missouri of any customer rate caps or limitations on increasing the electric service revenue requirement pursuant to Ameren Missouri's election to use the plant-in-service accounting regulatory mechanism;
Ameren Missouri's ability to construct and/or acquire wind, solar, and other renewable energy generation facilities and battery storage, as well as natural gas-fired and nuclear energy centers, extend the operating license for the Callaway Energy Center, reliably operate existing energy centers through their expected retirement dates, retire fossil fuel-fired energy centers, and implement new or existing customer energy-efficiency programs, including any such construction, acquisition, retirement, or implementation in connection with i