Rio Tinto and BHP will collaborate on the testing of large battery-electric haul truck technology in the Pilbara, Western Australia, to accelerate the potential for its future deployment. The two companies will work with manufacturers Caterpillar and Komatsu to conduct independent trials of their battery-electric haul trucks, including testing of battery, static and dynamic charging systems, to assess performance and productivity in the Pilbara environment. The collaboration reflects the individual commitments made from BHP, Rio Tinto, Komatsu and Caterpillar to support Rio Tinto and BHP?s shared ambition of net zero operational greenhouse gas emissions by 2050.

As part of the collaboration, two Cat 793 haul trucks will be trialled from the second half of 2024, and two Komatsu 930 haul trucks tested from 2026 at mine sites in Western Australia?s Pilbara region. Caterpillar and Komatsu will each provide one truck each to both BHP and Rio Tinto for these trials. BHP will trial the Caterpillar trucks, while Rio Tinto will trial the Komatsu trucks.

Outcomes of the trials will be shared between BHP and Rio Tinto. These trials represent the first stage of battery-electric haul truck testing at BHP and Rio Tinto?s Pilbara operations. Ongoing testing, development and refinement of truck and battery design is anticipated with each manufacturer.

This will inform the approach for testing a larger number of haul trucks and the potential deployment of battery-electric haul truck fleets into each company?s operations.