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  • 100% Usage (an additional 1¢ per kWh use) 
  • 1,000 kWh "Block"* option for an additional $10.00 per month.
  • 500 kWh half "Block"* option for an additional $5.00 per month. (Half-block option available for residential customers only.)

The next time you receive your bill, you’ll see your Pure Power premium clearly labeled on your statement.
For a complete list of the resources included in Ameren Missouri Pure Power, view the Prospective Product Content Label. To view highlights of the conditions of your subscription, see the Price, Terms & Conditions

Participation in this program does not constitute the purchase of energy. Renewable Energy Certificates, which represent the environmental attributes associated with past renewable energy generation, are retired on behalf of program participants. All RECs purchased under this program are Green-e Energy Certified® by the independent Center for Resource Solutions. 

 Ameren Missouri Pure Power is Green-e Energy certified, and meets the environmental and consumer-protection standards set forth by the nonprofit Center for Resource Solutions. Learn more at

*1 "Block" = 1 Renewable Energy Certificate = 1,000 kilowatt-hours

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