The company highlights that fuels costs can be up to 50% cheaper for HFO, compared to diesel, as a result of using more modern energy efficient engines. A gold mine in Mali has announced plans to dramatically reduce its energy costs by building a 40 MW solar hybrid plant next to the facility in 2018 . Resolute Mining , the Australian company which owns the mine , has signed both a Joint Development Agreement and a Power Purchase Agreement with the developer Ignite Energy International for the proposal , which will be the world ’s largest off - grid solar hybrid plant . Construction on the plant is set to begin next year , with the site scheduled to be ready for commissioning in 2020 .
A gold mine in Mali has announced plans to dramatically reduce its energy costs by building a 40 MW solar hybrid plant next to the facility in 2018 . Resolute Mining , the Australian company which owns the mine , has signed both a Joint Development Agreement and a Power Purchase Agreement with the developer Ignite Energy International for the proposal , which will be the world ’s largest off - grid solar hybrid plant . Construction on the plant is set to begin next year , with the site scheduled to be ready for commissioning in 2020 .