Updated at 5.15pm
Unit C4 at Callide Power Station tripped and came offline at approximately 6.30pm yesterday evening (26 October) following a storm and lightning strike to Powerlink Queensland’s Calvale switchyard which connects Callide to the power grid.
Callide’s other generators Units B1 and B2 are online. Unit C3 is offline until mid-November for a planned major overhaul which started in August.
Assessment of the full impact of the storm is ongoing, but Callide Unit C4 is currently forecast to return to service this Friday 31 October at 6pm.
Powerlink has confirmed the Calvale feed is available for operation. Our engineers are reviewing the turbine and boiler historical data to ensure there are no issues in returning the unit to service as forecast. We have also received some storm damage to the C3 and C4 cooling towers. Our preliminary investigations show that the damage is non-structural.