SWIS

April 17, 2026
Synergy has submitted a hybrid renewable energy project to Australia’s EPBC Act, featuring a 500MW battery energy storage system (BESS).
February 25, 2026
RE Development Pty Ltd has submitted a development application for a 250MW/1,000MWh battery energy storage system (BESS) in Baldivis, Western Australia.
February 3, 2026
Western Australia’s ERA has proposed a Benchmark Reserve Capacity Price of AU$491,700/MW per year for the 2028-29 capacity year.
November 19, 2025
Swedish renewable energy developer OX2 has formally taken ownership of the 1.2GW Dinner Hill Wind Farm and the co-located 400MWh Harvest Battery Energy Storage System (BESS) in Western Australia.
September 10, 2025
Tesla has announced that by the end of 2026, it expects to have around 4.5GW of grid-forming battery storage operating across Australia.
August 29, 2025
The Australian government has opened two CIS tenders in Western Australia, targeting 2.4GWh of energy storage and 1.6GW of renewables.
August 11, 2025
Australia’s AusEnergy Services (ASL), formerly AEMO Services, has released the Capacity Investment Scheme (CIS) Tender 6 parameters, seeking an initial 2,400MWh of dispatchable capacity in Western Australia.
August 6, 2025
Construction has officially started on the 100MW/400MWh 4-hour duration Merredin battery energy storage system (BESS) in Western Australia.
July 24, 2025
On 21 July, standalone BESS and solar-plus-storage each achieved new generation records in Western Australia’s SWIS.
July 2, 2025
Developer Atmos Renewables has successfully achieved financial close on its 400MWh Merredin battery energy storage system (BESS) in Western Australia.

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