News Releases

Key Takeaways:

• Ameren is focused on keeping costs as low as possible while preparing the grid for the future, replacing aging infrastructure and ensuring long-term reliability.
• Plans call for building new and upgraded transmission lines, mostly along existing corridors and co-located with existing Ameren facilities.
• The public is invited to attend upcoming open houses to learn more about the Eastern Missouri Grid Transformation Project and share their input as part of the routing process.

ST. LOUIS (Feb. 27, 2026) – Ameren Transmission Company of Illinois (ATXI) and Ameren Missouri are hosting the first round of in-person public open houses next week to gather input on the proposed Eastern Missouri Grid Transformation Project. This project is designed to make the energy grid across the region more reliable and resilient.

The in-person open house schedule is below:

• Marion County: Monday, March 2, 11 a.m.-1 p.m. and 5-7 p.m. at Iron Gate Estate, 4603 US Highway 61, Palmyra, MO 63461
   
• Ralls County: Tuesday, March 3, 11 a.m.-1 p.m. and 5-7 p.m. at New London Lions Club, 600 West Street, New London, MO 63459
   
• Pike County: Wednesday, March 4, 11 a.m.-1 p.m. and 5-7 p.m. at VFW Post 5553, 505 VFW Road, Bowling Green, MO 63334
   
• Lincoln County: Thursday, March 5, 11 a.m.-1 p.m. and 5-7 p.m. at Knights of Columbus Hall, 500 Highway J, Troy, MO 63379
   
• St. Charles County: Monday, March 9, 11 a.m.-1 p.m. and 5-7 p.m. at Kohl-Jeck VFW Post 2866, 66 VFW Lane, St. Charles, MO 63303
   
• St. Charles County: Tuesday, March 10, 11 a.m.-1 p.m. and 5-7 p.m. at O'Day Lodge, 1100 O'Day Park Drive, O'Fallon, MO 63368
   
• St. Louis County: Wednesday, March 11, 11 a.m.-1 p.m. and 5-7 p.m. at VFW Post 3944, 10817 Midland Blvd., Overland, MO 63114
   
• City of St. Louis: Thursday, March 12, 11 a.m.-1 p.m. and 5-7 p.m. at O'Fallon Park Rec Complex YMCA, 4343 W Florissant Ave, St. Louis, MO 63115

The Eastern Missouri Grid Transformation is planned to pass through six counties and the City of St. Louis and include more than 130 miles of new and upgraded transmission lines. The vast majority of the lines would be rebuilt along existing corridors and co-located with existing Ameren facilities. A new substation, to be called Graus, would be built near Orchard Farm in St. Charles County.

"We are focused on keeping costs as low as possible throughout this project. Our team is working to deliver more value to customers for every dollar that's put into the energy grid," said Shawn Schukar, chairman and president of ATXI. "This project was identified as part of a multi-year study as the best option to address reliability issues for customers and bring economic development benefits to communities. Growing communities require reliable power to attract new businesses, expand existing businesses and create jobs."

Each open house will offer information about the project and an opportunity to provide feedback on potential route segments. Sessions will include the same information, with no formal presentation. A self-paced virtual engagement and comment map will also be available online starting March 2. More details can be found on the project website.

"Engaging with the community, listening to feedback and hearing out concerns is a top priority for our project team," said Jim Jontry, project manager for the Eastern Missouri Grid Transformation Project. "Community members help guide our routing process by telling us about opportunities and sensitivities that may exist in their area. We encourage all residents who are interested in asking questions or sharing comments to attend an open house and talk to our project team."

The Eastern Missouri Grid Transformation Project is scheduled to be in service by 2032. For more information, visit Ameren.com/EasternMOGrid, email Connect@EasternMOGrid.com or call the project hotline at 877.468.1823.

About Ameren Corporation 
St. Louis-based Ameren Corporation powers the quality of life for 2.4 million electric customers and more than 900,000 natural gas customers in a 64,000-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.