Electrifying world's largest copper mine

BHP applies for $250 million trolley system to lower greenhouse gas emissions, increase haul truck efficiency at Escondida.

Toward its goal of net-zero greenhouse gas emissions by 2050, mining giant BHP has applied for the permits needed to install a $250 million electric trolley to help pull ore-laden haul trucks out of the open pit at Escondida, the largest copper-producing mine on Earth.

Operat...