{"url":"https://newsforagent.com/news/2026-11-12/ameren-missouri-battery-solar-approval","markdown_url":"https://newsforagent.com/news/2026-11-12/ameren-missouri-battery-solar-approval.md","title":"Ameren Wins Approval for 545 MW of Missouri Batteries","headline":"Ameren Gains Missouri Approval for Three Battery Systems and Two Solar Plants","description":"Ameren won Missouri approval for 545 megawatts of battery storage and 400 megawatts of solar, aimed at replacing retired coal output and meeting data center demand.","section":"Regulation & Approvals","published_at":"2026-11-12T20:12:00+00:00","modified_at":"2026-11-12T20:12:00+00:00","author":"News Desk","key_takeaways":["The Missouri Public Service Commission approved Ameren's plans for three battery systems and two solar plants totaling 545 megawatts of battery capacity and 400 megawatts of solar.","Ameren's Scott Wibbenmeyer said the facilities are needed to replace electricity lost from recently retired coal plants and to meet demand from artificial intelligence data centers.","Office of Public Counsel chief economist Geoff Marke testified that the projects are needed only to serve projected data center load and that residential customers should not bear their cost."],"companies":[{"name":"Ameren","is_primary":true,"profile_url":"https://akta.pro/company-profiles/0000gji/ameren","website":"http://ameren.com"}],"source":{"publisher":"Yahoo","title":"Ameren plans three more Missouri battery plants","url":"https://www.yahoo.com/news/us/articles/ameren-plans-three-more-missouri-193953682.html"},"other_sources":[],"tags":["Regulation & Approvals","Ameren"],"body_markdown":"[Ameren](https://akta.pro/company-profiles/0000gji/ameren) received Missouri regulatory approval to build three battery systems and two solar plants in the state, adding 545 megawatts of battery capacity and 400 megawatts of solar generation. The Missouri Public Service Commission approved the plans last month, [Yahoo](https://www.yahoo.com/news/us/articles/ameren-plans-three-more-missouri-193953682.html) reported. Ameren is a St. Louis-based utility holding company serving roughly 2.5 million electric customers and more than 900,000 natural gas customers through Ameren Missouri and Ameren Illinois.\n\n## Ameren's Missouri Battery and Solar Plans\n\nThe commission approved battery facilities in St. Louis County and Lincoln County and a solar plant in Stoddard County, according to the report. Ameren is also preparing to start construction on a large-scale solar plant and a battery system in Audrain County. The Audrain battery, named \"Huck Finn,\" will sit on 22 acres, while the Audrain solar project, named \"Tom Sawyer,\" will be built on 1,200 acres of leased or purchased agricultural land.\n\nSarah Fontaine, the commission's communications director, said Ameren's battery facilities are the first of their kind approved in Missouri. Scott Wibbenmeyer, Ameren's director of renewable development, said the solar and storage facilities are needed to replace electricity lost from recently retired coal plants and to meet demand from artificial intelligence data centers. \"They're really critical for us to meet the reliability and energy needs of the state,\" he said.\n\nAudrain County Commissioner Alan Winders said battery storage infrastructure is state assessed rather than taxed locally, unlike the county's large-scale solar and gas plants. \"It will be state assessed and our taxing jurisdictions will realize very little — very, very, very little — revenue from it,\" he said. Wibbenmeyer said Ameren will install large water tanks at battery sites for use by local fire departments.\n\n## Ameren's Data Center Power Deals\n\nAmeren's recent agreements tie its generation growth to data center customers, according to akta.pro [company records](https://akta.pro/company-data). In June 2026, Ameren signed a strategic partnership with Amazon (AWS) to supply dedicated power for a $10 billion Montgomery County, Missouri data center campus, with Amazon committing to non-pass-through of costs to other ratepayers. In May 2026, Ameren partnered with Google to add over 500 megawatts of power capacity and contract over 1 gigawatt of new generation for Google's $15 billion New Florence, Missouri campus, alongside a $20 million Energy Impact Fund.\n\n## Earlier Steps Toward the Missouri Projects\n\nIn October 2026, the Missouri Public Service Commission approved Ameren Missouri's proposal to build solar and storage projects, with the Sierra Club supporting them at public hearings, CleanTechnica reported. Also in October 2026, the U.S. Department of Energy selected Ameren Missouri, Ameren Illinois and Pitch Aeronautics to deploy grid upgrades in Missouri and Illinois, PR Newswire reported. In October 2026, environmental advocates protested Ameren Missouri's long-term energy plan, urging retirement of coal units; the plan delays retirement of two coal units at Labadie from 2036 to 2042, FOX 2 reported.\n\n## How Ameren's Project Costs Will Be Recovered\n\nHow the costs of the solar plants and battery facilities are spread among customers will be decided when Ameren seeks to recoup the investments in a future rate case before the Missouri Public Service Commission. Geoff Marke, a chief economist for the Office of Public Counsel, testified that the projects are needed only to meet projected data center load and that residential customers should not bear their cost. Ameren predicts electricity demand from data centers \"will result in a roughly 60% increase\" in the company's energy needs.\n","publisher":{"name":"News for Agent","url":"https://newsforagent.com"}}