CS Energy has commenced a major overhaul of Unit C3 at Queensland’s Callide C Power Station, as part of its scheduled maintenance program to support the unit’s continued safe and reliable operation.
The $80 million Unit C3 overhaul is one of the largest maintenance projects in the station’s history, with an estimated 190,000 hours of work planned.
Related article: CS Energy to complete pre-emptive work on Callide C3
The project involves more than 60 specialist companies and will have a peak workforce of 360 people bringing flow-on economic benefits to the local area.
The overhaul’s start on August 15 coincided with new Callide Power Station general manager Malcolm Bambling’s first week on site, following his appointment in July.
Bambling brings more than 35 years of experience in the energy sector having led complex power generation operations across Australia, the UK, Europe, and the United States.
“The CS Energy-Downer overhaul alliance is ready to work hard to deliver a safe, high-quality overhaul that positions Unit C3 to serve Queensland well into the future,” Bambling said.
The overhaul is scheduled for completion in mid-November so that Unit C3 is ready for the summer peak demand period.
Callide Power Station is located at Biloela in Central Queensland and supplies baseload electricity to the national grid.
Related article: Clinker incident takes out Callide Unit C3 in Queensland
The power station comprises two power plants—Callide B and C—each with two generating units (B1 and B2, C3 and C4).
Unit C3 at Callide C Power Station recently returned to service in June after undergoing major repairs following damage from a clinker incident on 4 April 2025.
