Winter is Coming, But Higher Power Bills Aren’t: Callide Power Station Overhaul Set to Power Queensland

Queensland’s energy grid is getting a massive shot in the arm just in time for the chilly weather. The major $60 million overhaul of Unit C4 at the Callide Power Station is entering its final stages, tracking ahead of schedule to return to service before the high-demand winter peak.

The 420-megawatt unit, alongside shared infrastructure for Unit C3, is locked in to be fully online by 26 June. This milestone marks a significant turnaround for the state’s energy reliability and is already translating into direct relief for Queensland wallets.

A Double Win: Cheaper Power and a Stronger Grid

The completion of this 77-day maintenance marathon aligns with a welcome drop in electricity prices. Backed by the State Government’s Energy Roadmap and Electricity Maintenance Guarantee, the Queensland Competition Authority (QCA) has locked in power bill reductions starting 1 July.

What this means for your back pocket:

• Regional Households: Will see an average 6.9 per cent decrease in their electricity bills.
• Small Businesses: Will benefit from an even larger 8.1 per cent reduction.

This reliable baseline power is a welcome shift for the state, especially following a strong March quarter where CS Energy’s portfolio delivered an average availability of more than 95 per cent.

Boosting the Central Queensland Economy

It wasn’t just the power grid getting an upgrade—the local economy received a massive financial jolt, too. The intensive maintenance program required more than 160,000 hours of complex engineering, inspections, and component upgrades.

“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 businesses across the Biloela region.” — David Janetzki, Treasurer and Minister for Energy

Member for Callide Bryson Head echoed these sentiments, noting that the disciplined investment has successfully driven both jobs and economic growth straight into the heart of the region.

Keeping the Lights On for 1.9 Million Homes

The Callide Power Station is a heavyweight in Queensland’s energy mix, capable of generating enough electricity to power up to 1.9 million homes.

The current project follows a separate, successful $80 million overhaul of Unit C3 completed in late 2025. According to CS Energy Acting Chief Executive Officer Tony Bellas, the smooth delivery of this massive undertaking comes down to months of meticulous planning.

“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, thanking the 470-strong overhaul team for their around-the-clock professionalism.

With both units spinning safely by late June, Queenslanders can head into winter with confidence in a stronger, more affordable grid.