This new Ameren Missouri request follows closely on the heels of the case approved in April 2025; nothing has been decided yet.
+$13a month
Ameren Missouri base rate case
Approved Base rate case before the Missouri Public Service Commission.
+$20a month, estimate
on a typical bill, as approved
15.8% of the average Missouri bill of $129 (EIA, 2024); your own bill scales with your usage. Our arithmetic, not the utility's figure; the methodology page shows how.
What happens next
The decision is final; the new rate takes effect once the order sets a date. How rate cases work.
What it means for your bill
$
Fileddate not published
Hearingheld or waived
DecisionApr 23, 2025
On billsdate not published
Ameren Missouri asked the PSC in July 2024 for about 446.2 million dollars more in annual electric revenue, a 15.77 percent increase the company said would add 17.45 dollars a month to a typical residential bill. The Commission approved a unanimous settlement on April 23, 2025 for 355 million dollars instead, below the request, and kept the fixed residential customer charge at 9 dollars rather than raising it to the 10.43 dollars Ameren had sought.
What it means for your bill: The final Ameren Missouri increase approved in April 2025 was smaller than the 17.45 dollar figure the company originally requested, and the monthly customer charge did not go up.
- Status
- Approved
- Utility
- Union Electric
- Commission
- Missouri Public Service Commission
- Requested
- 15.8% residential, $446.2 million a year
- Approved
- $355 million a year
- Decided
- April 23, 2025
- Last checked
- August 29, 2026
Common questions
How much will my Union Electric bill go up?
Adds about $20 a month on a typical bill. 15.8% of the average Missouri bill of $129 (EIA, 2024); your own bill scales with your usage.
When would the new rates start?
Not yet set. That is decided along with the case, usually as part of the commission's final order.
When is the hearing?
No hearing date is on record for this case.
How do I comment?
The comment period closed once this case was decided; its result is above.
Sources
- Summary of Final Decision - Ameren Missouri Electric Rate Case, Consumers Council of Missouri, 2025-04-23
- How much your Ameren Missouri bill will go up, St. Louis Public Radio, 2025-04-30
Get an email when this changes
One email when a rate case is filed, gets a hearing date, or is decided for Union Electric. Nothing else.
Unsubscribe with one click. We do not sell the list.
Other Union Electric matters
Other pending cases in Missouri
1
Evergy Missouri Metro rate case
Evergy Metro, MO
This is Evergy's opening ask for its Kansas City area customers; the company already cut it once because of new data center revenue, and the case is now in its evidentiary hearing with no decision yet.
+$18a month
2
Ameren Missouri new base rate case, 2026-2027
Union Electric, MO
This new Ameren Missouri request follows closely on the heels of the case approved in April 2025; nothing has been decided yet.
+$13a month