The pumped storage project, located in Chungcheong Province, will contribute to South Korea's plan to add 5. The order has been. Austrian engineering group Andritz has signed a deal to supply the pump turbine units for a 500 MW pumped storage plant in South Korea, the country's first new pumped storage project in over a decade. When there is excess electricity, it pumps water from the lower reservoir to the upper one, and when electricity is needed, it generates power by releasing the water. License: Creative Commons, Attribution 2.