US Energy Price Monitorby KadoaUpdated weeklyStar on GitHub

NewInsight: Investor-owned utilities charge 23% more for power

Missouri

Ameren Missouri electricity rates

What homes pay Ameren Missouri for electricity, from EIA.

Investor-owned utility, 1,105,902 homes in Missouri. EIA lists it as Union Electric Co - (MO).

Headlines

Average price
14.1¢ a kWh
Up 8.4% on a year ago
Average bill
$142 a month
Up 7.8% on a year ago
Average use
1,011 kWh
A month. Missouri 1,039 kWh
Price rank in Missouri
4 of 8
1 is the most expensive

Over the 12 months to August 2026, Ameren Missouri homes paid 14.1¢ a kWh, against 14.0¢ across Missouri.

Ameren Missouri vs Missouri

Ameren MissouriMissouri
Average price, 12 months to August 202614.1¢14.0¢
Price in August 202618.5¢16.0¢
Average monthly bill, 12 months$142$145
Bill in August 2026$232$216
Average monthly use1,011 kWh1,039 kWh
Price change, past year+8.4%+6.1%
Price change since 2019+36%+25%

Electricity price

Average residential price a kilowatt-hour, by month.

Up to and including August 2026

Source: EIA-861M monthly utility survey. Revenue over kilowatt-hours sold, including fixed charges.

Average monthly bill

What an average home pays a month.

Up to and including August 2026

Source: EIA-861M monthly utility survey.