Engineer Smarter Systems Deliver Real-World Impact. Mackay, Queensland NEPEAN Power is a 100% Australian-owned engineering and manufacturing business with more than 30 years of experience delivering electrical products, systems and turnkey solutions. As part of the wider NEPEAN group , we design, manufacture, supply and service high- and low-voltage power, automation and energy-management solutions for the mining, resources, energy, infrastructure and renewables sectors. Backed by local enginee…