Hon Mark McGowan BA LLB MLA

Hon Mark McGowan BA LLB MLA

Premier; Treasurer; Minister for Public Sector Management; Federal-State Relations

Hon Bill Johnston MLA

Hon Bill Johnston MLA

Minister for Mines and Petroleum; Energy; Corrective Services; Industrial Relations

    WA's first big battery ready, with bigger battery on the way

    14/05/2023 11:00 AM
    • First large-scale battery storage project in WA ready to start operational testing
    • Kwinana Battery Energy Storage System supporting WA's transition to net-zero emissions
    • 2023-24 State Budget includes funding for a second, bigger battery at the same site
    • Part of $3 billion investment to tackle climate change and deliver cleaner, reliable and affordable energy for the future

    The McGowan Government plan for cleaner, reliable and affordable energy for Western Australia has achieved an important milestone, with the State's first large-scale battery storage system ready to charge and discharge energy into the grid.


    It comes as the 2023-24 State Budget confirmed an additional $3 billion investment towards tackling climate change and future-proofing WA's energy system.


    Through Synergy, the McGowan Government has delivered the 100 megawatt/200 megawatt-hour battery at Kwinana, which can store enough energy in reserve to power 160,000 homes for up to two hours.


    The system, which involved more than 200 jobs in construction, will now undergo a series of charge and discharge tests before entering the network later this year.


    Battery energy storage systems absorb excess energy from rooftop solar when the sun is shining and release it in the evening, when demand is at its peak - playing a key role in delivering reliable energy to households and businesses.


    The McGowan Government has allocated $2.3 billion towards two new battery energy storage systems in the 2023-24 State Budget, including a second, larger system at the Kwinana site.


    The proposed big battery will provide 200 megawatts (MW) of capacity with 800 megawatt hours - four times the energy storage of stage one.


    A further battery system will be developed in Collie, which will be one of the biggest battery systems in the world - providing around 500 MW for up to four hours.


    The second Kwinana big battery is expected to be operational by late 2024.


    The State Budget also includes $368 million for new large-scale wind energy generation projects - at King Rocks and near Eneabba - as well as $126 million towards electricity network planning and upgrades to support more renewable energy on the grid.


    Comments attributed to Premier Mark McGowan:


    "My Government is taking action to deliver a cleaner, affordable and reliable energy transition for Western Australia.


    "Battery storage systems will be critical to our energy future, allowing us to harness our rooftop solar resources to meet power needs during peak times. 


    "With the Kwinana big battery entering operational testing today, we're moving onto an even bigger battery on site - with four times the capacity.


    "It will make our existing electricity system more secure, support the continued uptake of renewables, and set up our State for the long-term."


    Comments attributed to Energy Minister Bill Johnston:


    "WA is a leader in adopting smart solutions and cutting-edge technology for a sustainable energy system.


    "These Battery Energy Storage Systems will be crucial in managing household energy demand and supporting the uptake of residential solar.


    "We are committed to delivering cleaner and more reliable power to help us reach our ambitious emissions reduction targets."


    Premier's office: 6552 5000

    Minister Johnston's office: 6552 6700