Olive Downs Coal Mine

Overview

The Olive Downs Coking Coal Project in Queensland is a world-class, large-scale open cut mine expected to produce 15 Mtpa of metallurgical coal and generate over A$10 billion in royalties across its 80+ year lifespan. To support the mine’s high-voltage electrical infrastructure, Insulect supplied 72kV Disconnectors, ensuring safe and reliable power delivery to this significant resource operation.

Challenge

Building a mine of this magnitude in a remote location comes with inherent complexities. The electrical infrastructure needed to be not only powerful, but exceptionally dependable, capable of operating in harsh environmental conditions while supporting continuous, high-demand operations.

Any failure in the high-voltage network could result in costly downtime, safety risks, and operational disruption. Pembroke Resources required equipment that could guarantee isolation, protection, and long-term performance under demanding conditions without compromise.

Solution

Insulect approached the project with a clear focus: deliver high-voltage disconnector solutions engineered for reliability, safety, and durability.

By supplying 72kV disconnectors specifically suited to the project’s requirements, Insulect ensured seamless integration into the mine’s electrical infrastructure. Each unit was designed to provide secure isolation of electrical circuits, enabling safe maintenance and operational flexibility.

Beyond the product itself, Insulect’s expertise and responsiveness helped streamline delivery and installation, ensuring the project stayed on track during a critical development phase.

Benefits

With Insulect’s disconnectors in place, the Olive Downs project gained a resilient electrical foundation. The equipment supports safe isolation procedures, reducing risk for maintenance teams while enhancing overall system reliability.

The robust design ensures consistent performance in Queensland’s demanding mining environment, minimising the likelihood of faults and unplanned outages.

Just as importantly, the solution provides long-term confidence, supporting the mine’s operational continuity for decades to come.

Results

As Olive Downs moves into full production, its high-voltage infrastructure continues to perform as intended, quietly powering one of Australia’s most significant mining operations.

Insulect’s contribution, while behind the scenes, is fundamental: enabling safe, reliable energy distribution across a project set to deliver substantial economic value for generations.

In a development where scale meets longevity, the right electrical infrastructure makes all the difference, and Insulect helped ensure it was built to last.