Union Electric Co electricity rates

It is the dominant supplier in Missouri, serving 1.1 million residential customers, so its pricing effectively sets what the state average looks like. Its 12.56¢ per kilowatt-hour sits 8.2% below the Missouri average of 13.68¢.

Its customers use more electricity than the national norm, 989 kilowatt-hours a month against 871, which amplifies whatever the rate does.

A shareholder-owned company whose rates are set by the state regulator, including an approved return on the capital it has invested. That matters because a bill is not only the cost of generating electricity: it also carries the cost of the network, and who owns that network changes how it is paid for.

In 2024 the average Union Electric Co customer went 148 minutes without electricity across 0.77 interruptions. The median across the 941 utilities that report this is 185 minutes.

That is better than the typical American utility, though the figure includes major storm days and can move sharply from one year to the next.

Union Electric Co offers time-of-use pricing to residential customers. 891,431 households were enrolled, about 81.4% of its residential base.

These plans are opt-in almost everywhere. They reward households that can move laundry, dishwashing, water heating or electric vehicle charging out of the late-afternoon peak, and they cost more than the standard rate for households that cannot. How to tell which group you are in.

8,041 residential customers had net-metered solar in 2024, totalling 76.61 megawatts. That works out to 7.3 installations per thousand customers, against a median of 8 across the utilities reporting it.

Adoption is below the national median. A low retail rate reduces what solar displaces, and export compensation set at avoided cost rather than the retail rate reduces it further. What exports are actually worth.