Ameren is an electric and gas utility company that operates in Illinois, among other states. In Illinois, Ameren provides electricity to over 1.2 million customers in central and southern Illinois. The company's electric transmission system spans 12,000 miles and delivers power to 43,700 miles of distribution lines. Ameren also operates natural gas distribution systems in Illinois, serving over 800,000 customers in central and southern Illinois. The company's natural gas system spans 18,600 miles and includes 12 storage fields with a capacity of 42 billion cubic feet. Ameren Illinois is committed to providing reliable and affordable energy to its customers while also investing in renewable energy sources to reduce emissions and support a sustainable energy future.
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ameren.com
Ameren's energy comes from coal, nuclear, wind, natural gas, and solar. Coal is the largest source of electricity, providing 65% of Ameren's energy. Nuclear is the second largest source, making up 17%. Wind provides 11% of Ameren's electricity. Natural Gas provides 7% of Ameren's electricity. Solar provides 1% of Ameren's electricity.
64%
Coal
17%
Nuclear
11%
Wind
7%
Natural Gas
1%
Solar
The average electricity rate for Ameren customers is 11.17 cents/kWh. Ameren has several different electricity rates for residential customers, as shown in the table below.
| Rate Name | Rate Type | Cost Per kWh |
| DS-1 (Residential) | Fixed | 2¢ to 7¢ |
| DS-1 Residential Zone 2 | Fixed | 3¢ to 7¢ |
| DS-1 Residential Zone 3 | Fixed | 3¢ to 7¢ |
| DS-1 Residential Zone 3 | Fixed | 4¢ to 17¢ |
| DS-1 Residential Zone 2 | Fixed | 4¢ to 17¢ |
| DS-1 Residential Zone 1 | Fixed | 3¢ to 7¢ |
| DS-1 | TOU | 3¢ to 4¢ |
| DS-1 Residential Zone 1 | Fixed | 13¢ to 17¢ |
The price to compare for Ameren is 8.38¢. Rates are based on an estimated usage of 1,150 kWh per month.Update usage.
| Provider | Plan | Rate Per kWh | Plan Length | ||
|---|---|---|---|---|---|
| Constellation Energy | 18 Month Home Power Plan cheapestcheapest 13+ months | 10.99¢ | 18 months | Choose Plan | |
| Constellation Energy | 12 Month Home Power Plan cheapest 12 months | 11.19¢ | 12 months | Choose Plan | |
| Constellation Energy | 12 Month Green Home Power Plan cheapest renewable | 11.29¢ | 12 months | Choose Plan | |
| Constellation Energy | 6 Month Home Power Plan cheapest <12 months | 11.29¢ | 6 months | Choose Plan | |
In 2021, the average Ameren customer lost electricity one time for a duration of 175 minutes. In total, the average Ameren customer had their electricity out for about 194 minutes during the whole year.
Non-competitive customers: Credited to customer's next bill as a kWh credit at the retail rate; granted to utility at end of a 12-month billing cycle Competitive customers: Credited to customer's next bill as a kWh credit at electricity provider's avoided cost of electricity supply over the monthly period