Neoen Starts Work on 200 MW Western Downs Battery Building Upon 460 MW Solar Farm

Neoen Starts Work on 200 MW Western Downs Battery Building Upon 460 MW Solar Farm

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French independent producer of renewable energy Neoen, has provided notices to proceed to battery storage experts Tesla and to balance of plant contractor UGL, signalling the start of construction for its 200 MW / 400 MWh Western Downs Battery in South West Queensland, Australia. In line with the company’s develop-to-own business model, Neoen will be the long-term owner and operator of the asset, which is its fourth big battery in Australia.


The battery, consisting of Tesla Megapack systems, will leverage the existing infrastructure of Neoen’s Western Downs Green Power Hub which includes a 460 MWp solar farm, currently nearing completion. It will be located next to the Western Downs substation with Powerlink delivering the connection works, including a dedicated high-voltage line which will connect the battery to the transmission network. Early construction works are underway, with the asset expected to start operating in the Australian summer of 2024/25.


Western Downs Battery is designed to help modernise and stabilise the Queensland grid, with the battery, capable of performing a range of critical roles including firming renewables, providing frequency services and transmission network support. And, as a result of support from ARENA’s recently announced Large Scale Battery Storage Funding Round, the battery will ultimately be equipped with grid-forming inverter technology, allowing it to provide essential system stability services traditionally provided by synchronous generation such as coal and gas.

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Western Downs Battery brings Neoen’s Australian battery storage portfolio to 776 MW / 1279 MWh in operation or under construction, cementing its position as the country’s leading owner and operator of big batteries. Neoen already owns and operates the 300 MW / 450 MWh Victorian Big Battery in Geelong, the 150 MW / 193.5 MWh Hornsdale Power Reserve in South Australia, whilst its 100 MW / 200 MWh Capital Battery is currently under construction in the Australian Capital Territory (ACT).

Louis de Sambucy, Neoen Australia’s Managing Director, said “We are thrilled to be pressing ‘go’ on the Western Downs Battery, building upon our Western Downs solar farm which is nearing completion. We would like to thank Tesla, UGL and Powerlink for their dedication and commitment, and ARENA for their trust and support. We are extremely proud to now have a big battery in four of the five states of the National Electricity Market.”

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