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Melbourne Water begins work on one of Australia's largest solar farm

  • Melbourne Water begins work on one of Australia's largest solar farm
    Image: Melbourne Water

About the entity

Melbourne Water
Melbourne Water is a statutory authority owned by the Victorian Government. It is our role to manage and protect Melbourne's major water resources on behalf of the community. It is an important role, one we take very seriously.


Melbourne Water’s Eastern Treatment Plant (ETP) is set to become one of the largest ‘behind-the-meter’ solar installations in the nation, with work to begin on construction of a 19 megawatt solar farm early in the New Year. This means, instead of using electricity from the grid, we will be using our solar plant to help power our own major infrastructure.

When complete, Melbourne Water will generate about 65 per cent of ETP’s power needs from renewable energy sources. The Plant at Bangholme treats around 40 per cent of Melbourne’s sewage – about 350 million litres a day - and is world leading in its standards for advanced wastewater treatment.

Member for Carrum Sonya Kilkenny said it was great to see Melbourne Water working to generate more renewable energy and reduce carbon emissions. 

“With so many renewable energy projects happening all across Victoria it’s exciting to see such a significant solar project right here in our local community.”

Melbourne Water General Manager Program Delivery Eamonn Kelly said the proposed 19 megawatt solar farm, to be built on land adjacent to ETP,  features 39,000 solar panels and will create significant amounts of renewable electricity to help power the plant.

“We’ve been generating electricity from sewage gas at the Plant since it opened in 1975 and can supply 30 per cent of our electricity needs. With the addition of this solar plant, that capability will more than double to about 65 per cent - similar to the power required to run 6000 homes a year. This will take a significant amount of pressure off the grid and will deliver the important benefit of reducing our carbon emissions by more than 30,000 tonnes a year,” Mr Kelly said.

The contract to build the solar farm has been awarded to Melbourne-based company Beon Energy Solutions. Beon General Manager Glen Thomson said the company was delighted to be working on such an innovative project.

“Beon look forward to working on construction of the ETP solar farm and assisting Melbourne Water to decarbonise its operations. This is a very exciting project.”

Establishing a solar farm to help power ETP is a practical way for Melbourne Water to cut its greenhouse gas emissions, and tackle climate change. The project is a key part of Melbourne Water’s obligation to halve its emissions by 2025 on its path to reduce them to net zero by 2030. In 2019/2020 The Eastern Treatment Plant treated 145 billion litres of sewage, and delivered 5.5 billion litres of recycled water to customers.

Work is scheduled to begin on site in January, with the Solar Farm due to be up and running by mid-2022.

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