Press Release
FOR IMMEDIATE RELEASE -- October 30, 2026
Contact:
Sarah Fontaine (573) 751-9300
PR-27-33
PSC Sets Intervention Deadline in Ameren Missouri CCN Request
JEFFERSON CITY, Mo.---
The Missouri Public Service Commission (PSC) set an intervention deadline of
November 19, 2026,
in a case filed by Union Electric Company d/b/a Ameren Missouri seeking a Certificate of Convenience and Necessity (CCN) to construct, install, own, operate, maintain, and otherwise control a new 161 kV substation ("Katy 161 kV substation") and to split the existing 161 kV Loy Martin-Overton-3 transmission line ("LYMT OVRT-3 transmission line") into two lines. If approved, the new Katy substation would be located in Boone County, Missouri.
Applications to intervene in this case must be filed with the Secretary of the Missouri Public Service Commission, P.O. Box 360, Jefferson City, Missouri 65102, or by using the Commission's Electronic Filing and Information System (EFIS) at
www.psc.mo.gov
. An application to intervene in a case, if granted by the Commission, will make the applicant a formal party to the case to participate in testimony, filings, hearings, and other portions of the case, as set by the Commission.
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 1-866-922-2959, 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.
Written comments may also be submitted by using the Commission's online comment form at
https://psc.mo.gov/General/Submit_Comments
. When submitting comments, please refer to
Case No. EA-2027-0009.
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