Australia has selected 10 projects under CIS tenders 5 and 6, says DCCEEW
It will support 1.886 GW of new wind, solar, and storage, as well as 3.683 GWh of standalone battery storage projects
These developments will support grid stability and rising electricity demand in Western Australia
Australia has announced the successful bidders for Tenders 5 and 6 under the Capacity Investment Scheme (CIS), approving 10 renewable energy and battery storage projects in Western Australia.
The selected projects will deliver a combined 1.886 GW of new renewable generation and 3.683 GWh of standalone battery storage. The AusEnergy Services Ltd. (ASL) had been seeking 1.6 GW of renewable energy capacity under CIS 5, and 2,400 MWh of dispatchable capacity under CIS 6 rounds (see Australia’s ASL Invites Bids For CIS Tenders 5 & 6).
According to the government, the selected projects will strengthen the state’s Wholesale Electricity Market as aging power plants are phased out and electricity demand increases.
Among the selected projects is Trinasolar’s Killawarra Hybrid Project, comprising 350 MW of solar and 2,100 MWh of battery storage capacity, in Kadathinni. This is the only solar PV and battery storage project selected under CIS 5.
Under CIS 6, ASL picked the 200 MW/1,518 MWh Collie Battery and Solar Hybrid Project operated by Enpowered & Plenary Group in Palmer; the 200 MW/1,600 MWh Yathroo Battery project operated by Neoen Australia in Mimegarra; and Frontier Energy operates the Waroona Renewable Energy Project – Stage 1 with 82 MW/656 MWh, in Wagerup.
In the previous round (CIS 4), solar and storage bagged the lion’s share of awarded capacity (see CIS Tender 4 Exceeds 6 GW Target, Led By Solar & Storage).
Altogether, the 10 projects selected under CIS 5 and 6 rounds are expected to produce enough clean electricity to supply over 1 million Western Australian households, and support peak demand for more than 400,000 households for up to 4 hours, according to the Department of Climate Change, Energy, the Environment and Water (DCCEEW).
The selected projects also include commitments to local communities, First Nations participation, and the use of Australian-made materials, while supporting employment during construction and operations.
Late last year, in December 2025, ASL launched the CIS 8 round, targeting 4 GW/16 GWh clean dispatchable capacity with a minimum 2-hour storage at COD (see Australia Launches CIS Tender 8 For Dispatchable Capacity).
