Most mining firms rely on their own diesel supplies to extract iron ore, diamonds, rutile and bauxite in the resource-rich country.
The miner may cut its labor costs by 10%, which could involve layoffs among its 35,000 staff.
Case centres on a 2018 toxic spill at the Badila oilfield, equivalent in volume to 34 Olympic-sized swimming pools.
The 20 MWp solar and 11 MWh battery project will provide clean energy to meet 20% of the mine’s energy needs.
