WEM

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 10, 2025
Australia’s DCCEEW has announced plans to streamline the Capacity Investment Scheme (CIS) by transitioning to a one-stage process.
July 2, 2025
Developer Atmos Renewables has successfully achieved financial close on its 400MWh Merredin battery energy storage system (BESS) in Western Australia.
June 24, 2025
AEMO has issued a call for 6-hour duration BESS in Western Australia to support grid reliability as coal-fired power plants are withdrawn.
June 17, 2025
Atmos Renewables has awarded construction company GenusPlus Group an AU$65 million (US$42 million) contract to build the 400MWh Merredin battery energy storage system (BESS) in Western Australia.
December 4, 2024
AEMO said that new energy storage capacity that has come online will play a key role in grid stability throughout the 2024-25 summer months.

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