Origin Energy plans 700MW big battery in NSW

The race for Australia’s largest big battery is heating up, with Origin Energy unveiling plans for a massive 700MW big battery to be located at the company’s Eraring power station in the New South Wales Hunter region.

Origin Energy’s plans for the big battery would include up to four hours of dispatchable power, providing up to 2,400MWh of energy storage capacity, and is currently the largest battery storage system under consideration in Australia.

The project could win the backing of the New South Wales state government, which has set itself a target to develop up to 2,000MW of new energy storage capacity in the state, as part of an ambitious plan to support the construction of new low emissions and low cost electricity supplies as most of the state’s coal plants reach retirement age.

The Eraring power station is expected to close by 2032, but remained open to the prospect that the power station could close earlier. The construction of a big battery project at the Eraring site would allow the battery to utilise the existing network connections and infrastructure, long after the power station has been decommissioned.

Origin Energy announced that it had issued an ‘expression of interest’ for potential suppliers and builders of the big battery to come forward, as well as kick-starting negotiations with network company TransGrid to connect the battery to the Eraring substation.

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