The document lists the number of steam turbine units and their total megawatts of power for various countries around the world as of April 1, 2008. Japan has the most steam turbine units at 750 totaling over 66 million megawatts of power. China has the second most units at 37 for over 6.7 million megawatts. The United States has 92 units for over 8 million megawatts, the third most worldwide.