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Greenhouse Gas Reduction

Greater Western Water has pledged to reduce its greenhouse gas emissions by 32% (of the average emissions from 2012-2016) by 2025.

Greater Western Water uses electricity to treat and distribute drinking water and sewage across our service region.

With strong population growth in the region, our pledge will more than halve our future emissions compared with continuing to provide services the way we did in the past.

How will we meet the pledge?

  • Installing large solar panel systems at treatment plants
  • Generating more low-carbon electricity from our biogas cogeneration plant, including exploring processing of food waste to extract biogas
  • Exploring replacement of diesel pumps with solar panels and batteries.

In addition, Greater Western Water has a 30% stake in Zero Emissions Water (ZEW) a renewable energy purchasing entity formed by 12 Victorian water corporations. Through ZEW, GWW is supporting the increase of renewable energy in the state’s electricity grid and also receives offsets that can be used to further reduce emissions from our electricity consumption

Biogas Cogeneration Facility

Constructed in 2011, this $2 million facility captures methane emissions from the sewage treatment process to produce 100% renewable electricity.

The biogas cogeneration facility is located at Melton’s recycled water plant.

Food Waste to Energy Project

The digestion process used to treat sewage can also treat food and other organic wastes.

Greater Western Water is currently trialling the addition of food waste directly into the Melton Recycled Water Plant’s digester. This is increasing the volume of biogas produced for renewable energy generation.

Interested food and other organic waste producers and/or contractors can find out more by contacting our Feasibility Projects team on 13 44 99.

Statement of Obligations - Emissions Reduction

Greater Western Water is required under the Water Act 1989 to meet obligations set out in the Statement of Obligations (Emissions Reduction), issued by the Victorian Government.