Hornsdale Power Reserve is a 150 MW (194 MWh) grid-connected energy storage system owned by Neoen co-located with the Hornsdale Wind Farm in the Mid North region of South Australia, also owned by Neoen.
The original installation in 2017 was the largest lithium-ion battery in the world at 129 MWh and 100 MW.
It was expanded in 2020 to 194 MWh at 150 MW.
Despite the expansion, it lost that title in August 2020 to the Gateway Energy Storage in California, USA. The larger Victorian Big Battery began operations in December 2021.
During 2017 Tesla, Inc. won the contract and built the Hornsdale Power Reserve, for a capital cost of A$90 million, leading to the colloquial Tesla big battery name.In November 2019, Neoen confirmed that it was increasing capacity by a further 50MW/64.5MWh to a combined 193.5 MWh. The increased storage capacity was installed by March 23, 2020, and the increased power became operational in early September 2020.
Construction
South Australia received 90 proposals and considered 5 projects to build a grid-connected battery to increase grid stability...
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