A major overhaul of Unit C4 at Callide Power Station is more than 90 per cent complete.
The $60 million overhaul of the 420-megawatt unit is being delivered under the Crisafulli Government's Electricity Maintenance Guarantee and the Energy Roadmap's focus on improving existing assets while building what is needed for the future.
The 77-day overhaul has included extensive inspections, equipment upgrades and component replacements to ensure the unit's continued safe and reliable operation.
Unit C3 was also included as part of the overhaul to allow maintenance on shared infrastructure that requires both units to be offline simultaneously, ensuring work is carried out safely and effectively. Unit C3 was returned to service on 4 June 2026.
Treasurer and Minister for Energy David Janetzki said Callide Power Station plays a vital role in Queensland’s energy supply, with the power station capable of powering up to 1.9 million homes.
"Putting downward pressure on power bills for Queensland households and businesses is this Government's priority, and that means investing in the assets we already have, while we build what we need for the future," Treasurer Janetzki said.
"Through the Electricity Maintenance Guarantee, we're delivering the maintenance of our existing assets."
Member for Callide Bryson Head said the Electricity Maintenance Guarantee had the added benefits of driving the economy and local jobs into the region.
"This overhaul alone is contributing more than $13 million into the Central Queensland economy through local suppliers, with a peak workforce of 470 people supporting local accommodation, hospitality and service business across the Biloela region," Mr Head said.
CS Energy's portfolio delivered average availability of more than 95 per cent in the March quarter 2026, underscoring the value of disciplined maintenance investment.
CS Energy Acting Chief Executive Officer Tony Bellas said the overhaul was a major undertaking involving months of careful planning and preparation.
"Our priority is delivering this work safely, on time and on budget, so that Callide C can continue to support Queensland's energy needs,” Mr Bellas said.
"More than 160,000 hours of work will be completed across this overhaul, and I want to thank the entire overhaul team for their professionalism and commitment."