Abstract :
THE WORLD´S LARGEST reversible pump-turbine unit is the heart of a unique plan for storing large blocks of power at the Tennessee Valley Authority´s (TVA) Hiwassee Dam. This is the first installation in the Western Hemisphere of a reversible pump-turbine for the initial purpose of helping to level system load curves. The pump-turbine was designed and built by Allis-Chalmers Manufacturing Company.