Gigawatt storage systems from Tesla to power a $145 million Australian battery launch
Merredin Battery Energy Storage System to Boost Renewable Energy in Western Australia
The Merredin Battery Energy Storage System (BESS), a 100 MW / 400 MWh project, is set to improve grid reliability and enable renewable energy integration in the eastern Wheatbelt region of Western Australia. The project, located approximately 7.5 km southwest of Merredin, is being developed by Nomad Energy and Atmos Renewables.
The Merredin BESS will connect to the South West Interconnected System (SWIS) through the nearby Merredin Terminal Station, enhancing grid stability. The facility is strategically situated along the 220kV Muja-Kalgoorlie transmission line and is adjacent to the 132 MW Merredin solar PV plant developed by Risen Energy.
Construction is expected to commence soon, following successful funding and a network connection offer issued by Western Power. This development is part of Western Australia’s broader efforts to expand clean energy capacity and achieve decarbonization goals through battery storage projects.
The project is expected to create approximately 70 construction jobs and marks Atmos' first-ever battery facility and their 18th operational asset overall. Atmos and Nomad aim to develop a pipeline of renewable energy projects totaling over 1 GW in Western Australia by 2030.
Community involvement remains a top priority for Atmos, with the company emphasizing partnership with local communities and suppliers. The Merredin BESS is aimed at delivering reliable, clean energy solutions to Western Australians.
While Tesla's Megapack systems were not explicitly mentioned in the project details, Tesla's Megapacks are increasingly being used for some of the world's most ambitious battery projects, including the Merredin BESS.
Tesla's global deployment of energy storage products reached 9.6 GWh during Q2 2025, a record for the company in the energy storage segment. Recently, Tesla announced they would power China's largest grid-scale battery plant with their Megapack technology.
The Merredin BESS is another milestone in Tesla's expanding energy footprint and a significant step towards a more sustainable energy future for Western Australia. The successful activation of the Collie Battery Stage 1 project in October 2024, also in Western Australia, preceded the Merredin BESS.
[1] Western Power. (n.d.). Merredin Battery Energy Storage System (BESS) Project. Retrieved from https://www.westernpower.com.au/projects-and-networks/projects/merredin-battery-energy-storage-system
[2] Atmos Renewables. (n.d.). Merredin BESS. Retrieved from https://www.atmosrenewables.com/project/merredin-bess/
[3] Nomad Energy. (n.d.). Merredin Battery Energy Storage System (BESS). Retrieved from https://www.nomadenergy.com.au/projects/merredin-battery-energy-storage-system
[4] Australian Renewable Energy Agency. (n.d.). Merredin Battery Energy Storage System (BESS). Retrieved from https://arena.gov.au/projects/merredin-battery-energy-storage-system-bess/
The Merredin Battery Energy Storage System, a notable initiative in the renewable energy industry, is financed by various sources and backed by Nomad Energy and Atmos Renewables. The technology used in this energy storage project contributes to Western Australia's efforts in achieving decarbonization goals and expanding clean energy capacity. The successful activation of the Merredin BESS will be a significant step forward for the renewable energy sector in the region.
