Dubai Electricity and Water Authority (Dewa) has said it has upgraded its 132kV power transmission grid with the opening of a 132/11kV main substation with a 150 MVA capacity at the Factories Area in Industrial Area 4 in February 2012, Wam has reported. The Dhs250m project aims to promote Dewa's capacity of power transmission grids to the Factories Area at Jebel Ali.