The Western Australian (WA) Government has signed agreements to purchase electricity from planned onshore wind farms, aiming to unlock more than 1GW of renewable energy capacity.

Once operational, these wind projects are forecast to generate enough power to supply more than 800,000 households annually, surpassing the combined output from WA's remaining coal-fired power stations.

The deals, part of a series of long-term power purchase agreements (PPAs), involve Synergy and Water Corporation acquiring renewable energy from major projects.

Synergy will buy electricity from the Parron Maam Marang and Kondinin wind farms.

Parron Maam Marang, a proposed 470MW facility to be owned by Zephyr Energy – a partnership between Parron Developments and Atmos Renewables – is expected to begin supplying power by late 2028.

Planned as a 130MW operation developed by Kondinin Energy, a joint venture between Shell Energy and Foresight Group, the Kondinin wind farm is also scheduled to provide electricity by around late 2028.

Additionally, Water Corporation has agreed to procure 330MW of power from the forthcoming Marri wind farm. This 550MW project, developed by Alinta Energy, is expected to generate electricity in 2029.

The combined capacity of these agreements exceeds the government's stated target of delivering 810MW of new wind generation to replace coal-fired energy sources in the state.

These new contracts follow the 2025 agreement between Synergy and Bright Energy Investments for renewable supply from stage two of the Warradarge wind farm.

The expanded development at Warradarge is expected to meet the annual electricity requirements of approximately 164,000 WA households and businesses upon its planned completion in 2027.

WA Premier Roger Cook said: “By securing more affordable, reliable and clean energy while creating new jobs in construction, manufacturing and technology, my government can deliver its priority of diversifying our state's economy and making it a renewable energy powerhouse.”