File Rate Increase Request with Missouri Public Service Commission  
As a regulated utility in Missouri, Ameren Missouri can only change base rates through a lengthy review process presented to the Missouri Public Service Commission (MPSC), which includes input from a range of other parties who represent customer interests. Learn about the Commission's role.
Ameren Missouri residential rates include a flat monthly charge and an energy charge. The monthly charge covers the costs of making service available - meter reading, billing, and customer service. The energy or usage charge goes up or down depending on how much electricity you use. View Ameren Missouri's rates.


Learn more about the rate process by clicking
Steps 2 through 5 on the chart.

The rate Ameren Missouri uses to assess your energy charges is referred to as a base rate. This type of rate covers Ameren Missouri’s basic infrastructure costs, including operation and maintenance of plants, transmission lines, substations and distribution infrastructure. The base rate also covers the cost of employee salaries and other general business expenses, including taxes, technology and billing tasks.

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