Consumers Energy and Detroit Edison announced an $800 million upgrade on February 7, 2011. The six-year project would begin in 2013 and extend the plant's life by at least forty years and upgrade the generating capacity from 1,872 megawatts to 2,172 megawatts. Plans for the upgrade include replacing all six of the plant's turbines, which would increase the plant's total generating capacity by 15 percent, and efficiency by 5 percent. Upon completion, the plant will produce enough power for a community of 1.65 million (a quarter million increase).