Missouri Public Service Commission

JEFFERSON CITY---Ameren Transmission Company of Illinois (ATXI) has filed an application with the Missouri Public Service Commission seeking a certificate of convenience and necessity (CCN) authorizing ATXI to construct, install, own, operate, maintain, and otherwise control transmission investments in Northwest and Northeast Missouri.

ATXI seeks the CCN for 44 miles of 345 kV transmission line — in two segments — in Worth, Gentry, and DeKalb counties; a new 345 kV substation (referred to as the Denny Substation) in DeKalb County (the Fairport-Denny-Iowa/Missouri Border or FDIM Project); and 9 miles of 345 kV transmission line in Marion County between ATXI’s existing Maywood Substation near Palmyra, Missouri, and the Mississippi River Illinois/Missouri border, including upgrades to the Maywood Substation (Maywood-Mississippi River Crossing or MMRX Project). In addition, ATXI also requests permission and authority to transfer an undivided 49% interest in the transmission facilities for the FDIM Project — excluding the land for the Denny Substation — to the Missouri Joint Municipal Electric Utility Commission.

Applications to intervene and participate in this case must be filed no later than August 16, 2024, with the Secretary of the Missouri Public Service Commission, P.O. Box 360, Jefferson City, Missouri 65102-0360, or by using the Commission’s Electronic Filing and Information System (EFIS) at www.psc.mo.gov.

Individual citizens wishing to comment should contact either the Office of the Public Counsel (Governor Office Building, 200 Madison Street, Suite 650, P.O. Box 2230, Jefferson City, Missouri 65102-2230, telephone (866) 922-2959, email opcservice@opc.mo.gov) or the Public Service Commission Staff (P.O. Box 360, Jefferson City, Missouri 65102, telephone 1-800-392-4211, email pscinfo@psc.mo.gov). The Office of the Public Counsel is a separate state agency that represents the general public in matters before the Commission.

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Case No. EA-2024-0302

• EA-2024-0302