Australia’s hottest town now has a battery to store its excess solar


From pv magazine Australia

With the moniker of “Australia’s hottest town,” Marble Bar in Western Australia’s remote East Pilbara region is famed for at one time recording 100 consecutive days of temperatures over 37 C. Obviously, this makes Marble Bar the ideal place to invest in solar panels, and that’s why the Western Australia state government’s Western Australia Recovery Plan has funded the completion and commissioning of a town battery to store excess solar energy.

State-owned regional energy provider Horizon Power’s AUD 31 million ($22.7 million) Energy Storage in Regional Towns project, which will also see community battery energy storage systems (BESS) installed in Broome, Carnarvon, Exmouth, Wiluna, Yalgoo and Yungngora by the end of 2022, believe Marble Bar’s new BESS will free up more than 100 kW of hosting capacity.

The BESS systems in Wiluna and Yalgoo were commissioned last month, and the towns of Menzies and Gascoyne Junction are also being investigated as potential hosts for a BESS solution.

Marble Bar’s approximately 600 residents will now be able to connect a standard rooftop solar system of 3 kW, which could see their electricity bills cut by an average of AUD 1,275 annually. Moreover, Marble Bar is already home to a centralised solar farm that generates more than 1 GWh each year.

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Horizon Power’s Energy Storage in Regional Towns project aims to free up around 10 MW of hosting capacity across the aforementioned towns, providing more than 3,000 households across regional Western Australia with the ability to connect their systems.

“We know customers from across our service area have a strong appetite for connecting their own rooftop solar systems and installing batteries like this one in Marble Bar mean we can help them acheive this,” said Horizon Power CEO Stephanie Unwin at an event at the Marble Bar civic centre to commemorate the commissioning. “This exciting project is just another way we are delivering on our goal to reduce our customers’ energy bills by 10% and have zero refusals when it comes to connecting solar in the next four years.”

Western Australia Energy Minister Bill Johnstone said the BESS systems would make more solar capacity available in regional areas and “is expected to reduce carbon dioxide emissions by 13,000 tons a year.” Moreover, “The project roll-out will also support economic development, providing opportunities for local installers to supply solar systems to customers.”

The Marble Bar battery was supplied and installed by Western Australia-based Hybrid Systems Australia.

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