Pure Power by AmerenUE
Pure Power - AmerenUE's voluntary renewable energy program - empowers AmerenUE electric customers to support wind farms and other renewable energy facilities in the Midwest.
By choosing to enroll in Pure Power, you agree to pay just a penny and a half more per kilowatthour to support clean energy. AmerenUE then purchases Green-e Certified® renewable energy certificates (RECs) from new regional wind and other renewable energy facilities equal to your electric demand. Green-e certification guarantees that electricity from these renewable resources is delivered to the Midwest power pool. Electricity produced by renewables helps offset the generation of electricity from other, non-renewable sources.

