ACCIONA leads the consortium that will build new Alkimos desalination plant in Perth


acciona, Alkimos, Jacobs, Perth,


An ACCIONA-led consortium has been selected as the preferred proponent by Water Corporation, the largest water utility in Western Australia, to design, build, operate and maintain the future Alkimos Seawater Desalination Plant (ASDP) in Perth for ten years.

The plant will have an initial (Stage 1) capacity of 150,000 m³ per day, with an additional 150,000 m³ per day, when required, under Stage 2.

The Stage 1 design and construct project is scheduled to deliver drinking water in 2028, as part of an overall Water Corporation program of works valued at AU$2.8 billion (€1,724 million) to secure drinking water to millions of Western Australians.

The project will be delivered as an alliance, comprising of Water Corporation, ACCIONA and Jacobs, and has safety and wellbeing at the forefront of delivery, as well as embedding sustainability in the design, delivery and operations of the plant.

The commissioning of ASDP – to be built within the Alkimos Water Precinct – will help the region manage the combination of declining rainfall and population growth. Since 1970, winter rainfall in southwest Western Australia has decreased by about 20 per cent while Perth’s population – currently 2.12 million – is expected to reach 2.9 million by 2031 and 3.5 million by 2050, making it Australia’s third largest city and significantly increasing the demand for drinking water.

Georgiou Group has been awarded a $29.8 million contract to prepare the site for construction, with early works to include sinking of the site into the landscape and extending a large, vegetated sand dune to shield the plant from view and create a noise buffer.

The entire contract value will be spent locally, with almost $13 million directed to WA subcontractors and 14 per cent spent with Aboriginal businesses.

Around 70 local jobs will be created, including opportunities for apprentices and trainees.

The plant will have net-zero greenhouse gas emissions during construction and operation, and will allow Water Corporation to reduce its groundwater allocation by 30 billion litres a year – helping to preserve healthy wetlands, parks, forests and public open spaces in Perth’s north.   


Source: © Government of Western Australia 2017 to 2024

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