The agreement includes the purchase of an additional 68MW, bringing AMP-Ohio’s ownership to 23% of the facility’s output.

Prairie State is a 1,600MW supercritical electricity generating station that is expected to be among the cleanest US coal-fueled power plants, providing electricity for more than 1.7 million families throughout the midwestern and eastern US.

Rick Bowen, president of generation and Btu conversion at Peabody, said: Prairie State is leading the largest build out of clean coal plants in two decades and is important for delivering reliable baseload electricity at a time when demand is significantly higher than capacity.