POWER UP:Overhaul contractors lift the Unit C3 generator rotor back into place after it was overhauled.
POWER UP:Overhaul contractors lift the Unit C3 generator rotor back into place after it was overhauled.

$70 million works on power station

More than 126,000 hours have been worked on the $70 million major overhaul of Unit C3 at CS Energy and InterGen’s Callide C Power Station since it began last month.

Work has been underway since 4 October, with 370 short-term contractors on site for the overhaul.

Principal contractors Downer Group, GE and Intertek have provided the majority of the overhaul workforce, including electricians, boiler makers, riggers, fitters, welders, scaffolders and crane drivers.

Several locally-based contractors have also been engaged for the overhaul, including Highpoint Access and Rescue from Rockhampton and Stonestreets Coaches in Gladstone.

An overhaul contractor welds tubing in the Unit C3 furnace.
An overhaul contractor welds tubing in the Unit C3 furnace.

Executive General Manager Asset Management Colin Duck said work was progressing well on the overhaul, which was one of the biggest at Callide Power Station in recent years.

“This overhaul will ensure Unit C3 continues to operate at peak condition into the future, providing reliable electricity for Queensland,” Mr Duck said.

“A key project in this overhaul is the upgrade of the Unit C3 turbine to increase its capacity by 15 megawatts to 420 MW, which is enough to power an extra 20,000 homes.

“Other works include maintenance of boiler tubing, high voltage motors and a range of other power station equipment.”

While the Unit C3 overhaul is underway, Callide Power Station’s remaining three generating units will continue providing electricity to the grid.

Queensland has plenty of surplus generating capacity to cover Callide Unit C3 while it is offline for this essential overhaul and maintenance.