Callide Power Station
 

CS Energy begins $80 million overhaul of Callide Unit C3

18 Aug 2025

A major overhaul of Unit C3 at the jointly owned Callide C Power Station is underway, as part of its scheduled maintenance program, to support the unit’s continued safe and reliable operation into the future.

The Unit C3 overhaul is one of the largest maintenance projects in the station’s history, with a budget of $80 million backed by the Electricity Maintenance Guarantee, and an estimated 190,000 hours of work planned.

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 15 August coincided with new Callide Power Station General Manager Malcolm Bambling’s first week on site, following his appointment in July.

Mr 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.

Mr Bambling thanked Callide overhaul project director Michael Johnstone and his team for their dedication and collaboration to ensure the site’s overhaul readiness, and said he was looking forward to supporting Michael and the overhaul team to successfully complete the project.

“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,” Mr Bambling said.

Callide overhaul leaders
Image: Callide Overhaul Project Director Michael Johnstone, Callide Power Station General Manager Malcolm Bambling and Chief Operating Officer Andrew Buswell.

The overhaul is scheduled for completion in mid-November so that Unit C3 is ready for the summer peak demand period.

Background

Callide Power Station is comprised of two power plants, Callide B and C, each with two generating units (B1 and B2, C3 and C4).

CS Energy (through its subsidiary Callide Energy Pty Ltd) owns Callide C in a 50/50 joint venture with IG Power (Callide) Ltd. CS Energy operates Callide C on behalf of the JV.

CS Energy owns 100 per cent of the neighbouring Callide B Power Station.