Gold Fields will pilot a prototype Sandvik 66‑tonne diesel‑electric underground haul truck at its St Ives gold operation in Western Australia, as outlined in its Sustainability Report 2025. The trial, to be conducted with mining contractor Byrnecut as “business partner”, will test high‑capacity diesel‑electric haulage in existing St Ives stopes and declines. Outcomes will inform fleet decarbonisation strategy, power demand planning and potential changes to ventilation design for future underground expansions.

Trafo Power Solutions is supplying seventeen specially engineered underground mini substations to a Zambian copper mine, comprising a mix of 800 kVA and 1,000 kVA units. The oil-cooled transformers are housed in compact, rugged enclosures designed for constrained haulages and high dust and moisture, with protection and switching gear integrated into each skid-mounted package. For mine electrical teams, the key impact is higher installed power density close to the working faces, reducing cable runs and voltage drop while keeping maintenance concentrated on modular units.

Epiroc has introduced a 480 kW underground charging system designed for heavy‑duty battery‑electric fleets, combining ruggedised hardware with OEM‑agnostic interfaces so mixed‑brand loaders and trucks can use the same infrastructure. The system uses dynamic power distribution to allocate available capacity across multiple connected vehicles, reducing peak demand and improving utilisation of limited mine power. For mine planners and electrical engineers, this points to higher charger throughput per substation bay and simpler standardisation of charging bays in constrained headings.