WA’s new seawater desalination plant to be located in Alkimos

Image credit: www.mediastatements.wa.gov.au

The Western Australian government has selected Water Corporation’s property in Alkimos as the site for the state’s next major water source. 

Located in the northeast of Alkimos Beach, the Alkimos Seawater Desalination Plant will supply clean drinking water to millions of WA residents. 

The plant is expected to deliver 100 billion litres of drinking water per year as part of the Integrated Water Supply Scheme (IWSS). Around 2.5 million Western Australians across Perth, Peel, and some parts of the South-West and Kalgoorlie-Boulder receive their water supply through the IWSS. 

The proposed Alkimos facility’s first 50 billion-litre milestone is expected to be reached in 2028. 


The WA Environmental Protection Authority is currently evaluating a comprehensive environmental review for the proposed desalination plant. 

Water Corporation is also planning to leverage up to 400 megawatts of additional renewable wind energy to power up the new plant, along with the other two existing desalination facilities at Kwinana and Binningup. The initiative was included in the WA government’s recently announced $3.8 billion investment in renewable power generation and storage. 

The state government intends to meet an emission target of 80 per cent below 2020 emission levels by 2030. 

Water Corporation has also spearheaded an effort to meet net-zero emissions across all of its operations by 2035.