The logo for Australia's biggest electricity network Ausgrid adorns the headquarters building in central Sydney, Australia, July 25, 2016. REUTERS/David Gray

The logo for Australia’s biggest electricity network Ausgrid adorns the headquarters building in central Sydney, Australia, July 25, 2016. REUTERS/David Gray

The logo for Australia's biggest electricity network Ausgrid adorns the headquarters building in central Sydney, Australia, July 25, 2016. REUTERS/David Gray

August 11, 2016 10:06 AM (UTC+8)