Strike Energy Ltd. has achieved mechanical completion at its South Erregulla Peaking Power Station (SEPP), signalling the end of construction for the major infrastructure project.
The 100 per cent owned and operated 85-megawatt gas-fired facility, located within the L24 licence area of the Perth Basin, has officially entered its commissioning phase following the successful introduction of South Erregulla gas into the plant.
Mechanical completion verifies that all major plant equipment has been fully installed. Live commissioning activities are now underway to test, integrate, and verify the power station’s complex systems and machinery ahead of commercial operations.
In tandem with plant testing, workers have commenced construction on a 1.5-kilometre transmission tie-in to the South West Interconnected System (SWIS).
Strike Energy is currently navigating the final network connection and commissioning processes in tandem with Western Power and the Australian Energy Market Operator (AEMO).
The company is targeting an official commercial online date of October 1, carefully coordinating its final testing phases with scheduled Western Power network shutdowns.
Strike Energy CEO Shelley Robertson praised the development team for reaching the construction milestone safely and efficiently.
“The achievement of mechanical completion represents a major milestone for the South Erregulla Power Station and reflects the significant efforts of our project team and contractors over the construction period,” Robertson said.
“The project now moves into commissioning, where the focus shifts from construction to the safe testing and verification of all plant systems.”
Once fully operational, the South Erregulla facility will operate as a fast-start, flexible peaking power station. It is designed to provide critical dispatchable generation capacity to the Western Australian grid, supporting overall system reliability and smooth renewable energy integration.
Electricity generated will be sold directly onto the wholesale market, with Strike securing supplementary revenue streams through Western Australia’s Reserve Capacity Mechanism.



