MISO selects consortium of Ameren, GridLiance, Dairyland, Illinois Municipal Electric Agency to deliver major grid-bolstering projects in Illinois

ST. LOUIS, May 19, 2026 /PRNewswire/ -- The Midcontinent Independent System Operator (MISO) has selected a consortium of Ameren Transmission Company of Illinois (ATXI), a subsidiary of Ameren Corporation (NYSE: AEE); GridLiance Heartland, LLC, a subsidiary of NextEra Energy Transmission, LLC; Dairyland Power Cooperative; and the Illinois Municipal Electric Agency (IMEA) to develop, build, operate and maintain two major transmission projects. ATXI and GridLiance will lead the development of these projects, while Dairyland and IMEA will own a portion of both projects when they are placed in service.