JEFFERSON CITY, Mo.---The Missouri Public Service Commission has re-opened an intervention deadline in a case involving an Ameren Transmission Company of Illinois (ATXI) application 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 is seeking PSC approval for a CCN covering 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, Mo., 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.
Some landowners who would be affected by the transmission line in this matter did not receive notice from ATXI until seven months after the original intervention deadline had passed. Under the terms of the new deadline, applications to intervene and participate in this case must be filed no later than
April 18, 2025, 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 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.
Missouri Public Service Commission