Rio Tinto announced a deal with Australia's largest solar farm as it aims to green its aluminum industry on the country's east coast and halve emissions by 2030.

Rio Tinto will buy all power for 25 years from European Energy Australia’s planned 1.1 gigawatt Upper Calliope solar farm in Queensland. As soon as developed and approved, the solar farm will have the potential to reduce Rio’s operational carbon emissions by 1.8 million tons per year.

According to data from the Clean Energy Regulator, Rio Tinto is Australia's tenth biggest emitter. If the solar power deal is successful, it is expected to provide ways to repower Rio Tinto's three production assets in Gladstone.