Forensic engineer Dr Sean Brady has been engaged to lead an external, independent investigation and review of the incident on Unit C4 at CS Energy’s Callide Power Station last month.
CEO Andrew Bills said Dr Brady would investigate the cause of the Callide incident, with support from individual experts.
“CS Energy is committed to understanding the facts that led to the C4 event so we can learn from it and improve the safety of our people and plant,” Mr Bills said.
“The scope of the investigation will be broad in nature and will assess both technical and organisational factors that could have contributed to the C4 incident.
“It will be a highly complex investigation and Dr Brady has been given the authority to expand its scope based on progressive findings. As a result, the timeframes for finalising the investigation cannot be confirmed at this stage and will instead be provided as the investigation progresses and more information becomes available.”
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Mr Bills said it was too early to speculate on the cause of the incident until the investigation is complete.
“A report will be published with findings from the investigation so that the lessons learned can be shared with our peers in the power generation industry,” he said.
Dr Brady is based in Queensland and recently completed the Brady Review, which was an investigation into the causes of fatalities in the state’s mining and quarrying industry.
Alongside this independent investigation, there are other stakeholders investigating what has occurred at Callide, including Workplace Health & Safety Queensland and the Australian Energy Market Operator (AEMO).
Mr Bills, who has been visiting Callide Power Station each week, said staffing had returned to normal levels on site.
Unit B1 has returned to service, and B2 is scheduled to return on June 20.
Minister for Energy, Renewables and Hydrogen Mick de Brenni welcomed the return of unit B1 at Callide Power Station, stating: “After a tremendous effort involving more than 300 employees and contractors, at 4:30pm, unit B1 was turned back on and is now flowing reliable and firmed energy into the grid.
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“This is an important first step in Callide Power Station’s recovery.
“Over the next 48 hours, the unit’s output will be safely and gradually ramped up to its full capacity.
“We made it clear from the beginning that the safety of the workforce comes first.
“We cannot and will not rush turning these units back on.
“The news that unit B1 is back online and operating safely is welcome to all of the workers at Callide and the community that supports them.
“We will continue to progressively bring back online the remaining functional units in a safe way.
“I thank everyone involved for getting B1 up and running safely and quickly.”
CS Energy owns Callide C in a 50/50 joint venture (JV) with InterGen. Callide Power Trading, which trades the output of Callide C on behalf of the JV, has informed AEMO that Unit C3 will return to service on 2 July.