Unit C3 at the joint venture owned Callide C Power Station is generating electricity after being returned to service over the weekend.
The unit was brought back online in the early hours of 1 June (2.47am) and is being closely monitored before it is safely and methodically returned to its full capacity in a staged manner.
The unit’s return follows repairs to damage from the major operational safety event on 4 April 2025 and additional pre-emptive maintenance work that was required in the boiler, which was unrelated to the incident.
CS Energy Acting CEO Emma Roberts thanked everyone involved in returning this critical energy asset to service.
“Approximately 100 people worked on rotating shifts six days a week on the C3 repairs, with approximately 31,000 hours worked,” Ms Roberts said.
“CS Energy, as operator, has introduced additional clinker safety controls based on our findings to date in relation to this incident,” Ms Roberts said.
“We have worked closely with Workplace Health and Safety Queensland to provide them with reassurance that there are sufficient controls in place to safely bring Unit C3 back online.
“The Operations team has been rigorous in their approach and this is part of the cultural change the new Board and management is fostering at CS Energy.”
Work is continuing on the ICAM (Incident Cause Analysis Method) Investigation into the C3 incident and CS Energy will release our findings and response once complete.
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.