Hitachi Energy to deliver ElectraNet’s first SF₆-free switchgear

ElectraNet workers in high-vis safety gear standing at Bundey Substation (electricity transformers)
ElectraNet substation (Image: ElectraNet)

Hitachi Energy has been awarded a landmark contract by South Australian transmission network operator ElectraNet for its first deployment of sulfur hexafluoride (SF₆) switchgear.

This agreement marks the first Australian deployment to trial Hitachi Energy’s EconiQ high-voltage switchgear by a major transmission utility in Australia, showing a new path toward SF₆-free energy infrastructure.

SF₆ has long been the industry standard for insulation in high-voltage electrical equipment, however, it is a potent greenhouse gas with a Global Warming Potential (GWP) 24,300 times greater than that of CO₂.

Related article: ElectraNet gets nod for renewable energy transmission link

Under the agreement, Hitachi Energy will deploy a suite of eco-efficient solutions designed to maintain maximum grid reliability without the environmental cost. This includes the deployment of three EconiQ Live Tank Circuit Breaker (LTA) 145kV units and one EconiQ LTA 72.5kV unit.

ElectraNet executive assets Sageran Naicker said, “South Australia is a world leader when it comes to the clean energy transition and ElectraNet plays a crucial role enabling this. We’re committed to adopting innovative solutions that drive sustainability and reliability across our network.

“The move towards SF₆-free switchgear is a significant step in reducing our environmental footprint while maintaining the high standards of performance and safety our customers expect.

“Working with Hitachi Energy allows us to trial advanced technology and ensure it integrates seamlessly into our operations, supporting our broader goal of a cleaner, more resilient energy future.”

Related article: Ausgrid rolls out SF6-free switchgear to decarbonise grid

Hitachi Energy managing director Bernard Norton said, “With ElectraNet, we are proud to introduce its first EconiQ switchgear for South Australia, helping to set a new benchmark for sustainable and reliable energy infrastructure, free of SF6.

“This project marks a new chapter in the state’s decarbonisation efforts, and our partnership with ElectraNet demonstrates what meaningful collaboration can achieve. Together, we are laying the foundation for a more secure and resilient energy future for South Australia.”

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