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Victorian utility is on track for a solar powered water treatment plant

Victorian utility Wannon Water is on track for a solar powered water treatment plant and is laying claim to the first large-scale solar system to be put on a utility water tank in Australia, with a 100kW array newly installed on its water treatment plant at Hamilton.

Wannon Water says it believed it is the first large-scale solar installers melbourne on the roof of an Australian water utility tank, and says this will help to unlock the future potential for this type of installation for the Australian water sector.

344 High efficiency panels

It expects the 344 “high-efficiency” panels on the roof of the clear water storage tank will reduce the plant’s demand on the electricity grid by 25 per cent and cut greenhouse gas emissions by 150,000 kilograms each year.

Powered by renewable energy

It expects the $120,000 system to pay for itself in seven years through reduced energy use, and will mean that on some days the entire water treatment plant can be powered by renewable energy.

“On sunny days, the entire water treatment plant can be 100 per cent powered by renewable energy, with any excess being exported to neighbouring properties via a grid connection,” project manager Murray Dancey said in a statement.

“On its first full day of operation, the system produced enough energy to supply 70 per cent of the daily requirements for the plant which produces clean drinking water for Hamilton, Dunkeld and Tarrington.”

Automatic management

Contractors installed the panels on racking systems across the roof, which have the advantage of being above any shading from trees or adjoining buildings. Temperature and irradiance sensors provide data to assist with automatic management.

Wannon Water installed a similar solar panel array at its Gateway Road office in Warrnambool in March and – as we have reported here – it is planning to install a wind turbine at its Portland Water Reclamation Plant.

It is also investigating the installation of renewable energy systems on its other facilities across the region.

Net-zero emissions by 2050

Wannon Water aims to achieve net-zero emissions by 2050, with an interim target of a 40 per cent reduction by 2025.

“It’s an excellent example of how innovative thinking can deliver multiple benefits for our customers, the environment and the communities we serve,” managing director Andrew Jeffers said in a statement.

Source: Giles Parkinson


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