Cooling system designed for retrofitted electric mining truck
EPCA developed and tested a cooling system to support reliable operation of a retrofitted 100‑tonne electric haul truck.
Electric haul trucks can reduce emissions in mining, but batteries and power electronics must be kept within safe temperature limits, especially in hot operating conditions.
As part of MRIWA project M10550, Electric Power Conversions Australia (EPCA) designed, built and tested a thermal management system for a retrofitted Caterpillar 777D battery‑electric haul truck.
The project covered design and modelling, manufacturing and installation, control system development, commissioning and mine‑site load testing.
Results highlight the importance of coolant flow control and recommend separating battery cooling from high heat‑load components such as motors and inverters to improve long‑term reliability.
Read MRIWA report M10550 summarising the findings of this research
Page was last reviewed 13 May 2026