EOIs open for Borumba pumped hydro project works

Aerial shot of Borumba Dam in the Sunshine Coast Hinterland
Borumba Dam (Image: Shutterstock)

Queensland Hydro’s $14.2 billion Borumba pumped hydro energy project in the Sunshine Coast Hinterland is powering ahead with the launch of its Underground Works package.

The first of the Queensland Government’s two foundational hydropower energy storage projects, the 2000MW Borumba project will charge up from excess wind and solar generated in the states south east to keep the lights on for up to 2 millions households.

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A call for Expressions of Interest to begin underground tunnelling is underway. The latest underground works is the most significant package to be released to the market as part of the Borumba Exploratory Works program.

The package will involve the excavation of soil and rock utilising controlled blast and drilling methods, rather than tunnel boring machine, to form a D-shaped tunnel leading to the proposed site of the underground powerhouse cavern.

This tunnelling will compliment surface geological investigations, which together will provide a detailed understanding of ground conditions to inform detailed design of the project and how it is best delivered.

The works will be accompanied by the required environmental approvals and once complete, the excavated tunnel will be repurposed to become a permanent cable tunnel.
The EOI release follows the Coordinator-General’s coordinated project declaration on 12 October 2023, signalling the start of the rigorous assessment of social, economic and environmental matters before the Borumba Project’s Main Works can begin.

Queensland Hydro CEO Kieran Cusack said, “Queensland Hydro is pleased to release this EOI to the market. We’re excited about this release because it’s the first major package of works since we launched our industry engagement program in July, with three industry events held in Brisbane, Sunshine Coast and Gympie.

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“Attendees came from a broad range of industry including contractors, local suppliers, service suppliers, consultants, equipment suppliers and potential industry partners.
“We’ve been working with industry to ensure we attract the best partners for the project while creating opportunities for local industry involvement.

“Queensland Hydro will work with the successful contractor to maximise opportunities for local and Indigenous businesses and workers to be prepared for, and access opportunities on the exploratory works program.”

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