GE Renewable Energy Signs Agreement with Walcha Energy to Accelerate 500MW Pumped Hydro Storage Project in Australia (WK-intern) - GE Renewable Energy Hydro Solutions to provide technical and commercial support for the development of Dungowan pumped hydro storage power plant Dungowan pumped hydro storage power plant will support the addition of another 4 GW of renewable energy to the Australian grid Paris – GE Renewable Energy and Walcha Energy have signed an agreement to jointly develop the 500MW Dungowan pumped hydro storage project in the New England Renewable Energy Zone (REZ) in New South Wales (NSW), Australia. Under the agreement, GE Renewable Energy’s