WA to get a Big Battery

Expected to be Australia’s second biggest battery, the proposed 100MW, 200MWh big battery will be bigger than 20 tennis courts, side-by-side, and have the capacity to power 160,000 homes for two hours, and to be housed at the decommissioned Kwinana Power Station.

WA’s energy sector is experiencing a rapid transformation, with a major uptake of largescale renewables and rooftop solar. One in three households have rooftop solar panels and this is expected to rise to 50 per cent of households by 2030.

Increased pressure on WA’s electricity system and inaction could result in significant blackouts in coming years.

The big battery will support integration of more renewable energy and improve grid security. It can be charged during the day, when the sun is shining and energy is plentiful, and discharge this energy when it is most needed during the afternoon and evening peak.

Batteries will help the wider electricity system and the market by ‘smoothing’ demand issues, such as low load, which is encountered when customer solar generation is high but power demand is low.

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