Home  |  Mitsubishi Hitachi Power Systems Mitsubishi Power Systems, MPSA, Mitsubishi, Mitsubishi Hitachi Power Systems, MHPSA, project management, gas turbines, steam turbines, combined cycle power plants, supercritical boilers, integrated casification combined cycle, wind turbines, selective catalytic reduction, reciprocating engines Mitsubishi Hitachi Power Systems is the Western Hemisphere headquarters for versatile power generation technologies, performance-defining innovations and responsive service capabilities that boost uptime and reliability to new levels.