Unit C3 at the Queensland’s Callide C Power Station is again generating electricity after being returned to service over the weekend.
The unit’s return follows repairs to damage from the clinker incident on 4 April 2025 and additional pre-emptive maintenance work that was required in the boiler, which was unrelated to the incident.
Related article: Clinker incident takes out Callide Unit C3 in Queensland
The incident occurred when a significant clinker (hardened ash) detached from the internal boiler wall of Unit C3. When the clinker detached, it resulted in a pressure spike within the furnace. Initial assessments showed repairs were required to cladding and lagging on the upper section of the boiler.
No one was in the area at the time of the event and there were no injuries. The unit’s protection systems worked as designed to shut down the unit.
CS Energy acting CEO Emma Roberts said, “CS Energy, as operator, has introduced additional clinker safety controls based on our findings to date in relation to this incident.
“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.
Related article: CS Energy to complete pre-emptive work on Callide C3
“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 its findings and response once complete.
