Dubai Electricity and Water Authority (Dewa) announced on 19 August the start of trial operations at the 250MW Hatta pumped-storage hydroelectric power plant. Dewa says the plant has 1.5GWh of storage (providing 250MW for six hours) and a lifespan of up to 80 years. Power from the plant will supply the Hatta exclave with its estimated 39MW of demand and export the surplus to Dubai city.