DEWA signed another MoU with EDF for a consultancy contract for the pumped-storage hydroelectric power station at Hatta Dam. DEWA is building a 250MW pumped-storage hydroelectric power station in Hatta, which is the first of its kind in the GCC countries... It also includes consultancy on deep-water tunnel designs, the dam and hydroelectric power station, the tender for material supply, supervision of construction work, site installation, on-site testing and commissioning.