Queensland energy minister Mick de Brenni has announced progress on the Pioneer-Burdekin Renewable Hydro Power Project.

Geo-technical drilling for the state government’s proposed pumped hydro storage project at Pioneer-Burdekin has reportedly produced promising results. 

The Pioneer-Burdekin Renewable Hydro Power Project could be the largest water battery of its kind globally when it is complete.

“The samples I inspected from the site… looked to be very strong, competent and solid rock,” says Queensland Government Geologist, Tony Knight.

“This is exactly the type of rock needed for these projects for strong foundations and stability.”

The minister says findings reveal high-quality granite rock, which is ten times less complex than that found in the Snowy Hydro 2.0 project. 

These core samples suggest potential for higher power output and faster project delivery.

Investigations also uncovered strong, coarse granite rock, ideal for constructing dams, tunnels, and possibly multiple underground multi-turbine powerhouses. 

Minister Mick de Brenni says this development is crucial for the hydro power station's ability to store surplus renewable energy, which will be used to power Queensland when solar and wind energy are not available.

The proposed hydro power station aims to pump water up the Great Dividing Range during periods of low energy demand, using gravity to generate significant power during peak times, thereby reducing energy costs for households.

The state says the high-quality granite will help refine project design, lowering costs and improving delivery timelines.