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Greater Melbourne Urban Water and System Strategy: Water for Life
The Greater Melbourne Urban Water and System Strategy: Water for Life (known as 'Water for Life") is a shared plan, developed by Greater Western Water, Melbourne Water, South East Water and Yarra Valley Water.
The strategy outlines how we plan to shore up Melbourne's water supplies for the next fifty years. This includes how we aim to balance Melbourne's water needs by increasing efficiencies, diversifying water sources and using new water supplies.
Water for Life builds on the work we're already delivering to provide Greater Melbourne with a secure and sustainable water supply for the next fifty years.
Our water challenges
We face considerable water challenges over the next fifty years
Melbourne is consistently ranked as one of the world's most liveable cities and water makes a significant contribution to the prosperity of people and places. However projected population growth, together with uncertain climate conditions, present challenges for Melbourne's water future.
We also need to provide enough water for the environment to maintain waterway health and to preserve and protect Traditional Owner values.
We need to act now
While we have the benefit of time, we need to act now to be ready for the uncertainty that lies ahead.
Our findings show that we need to add alternative water supplies, such as desalination, recycled water and stormwater to our existing system within the next ten years, as well as several system augmentations over the next fifty years.
By planning now we ensure we can deliver on these initiatives and future proof Greater Melbourne's water supply.
We need a lot of water
By 2070, in a scenario with high demand, a drying climate and less water flowing into our rivers, we may need to double our water supplies – meaning we'd need to add an average of 12 billion litres of additional supply each year.
While our storages are in a strong position now, an overall trend of warmer and drier conditions is expected over the next fifty years.
The amount of water we have available can change quickly. Maintaining high storage levels helps ensure we can adapt while having time to plan and make system improvements.
Water for Life is a joint strategy for the future, which plans to ensure a safe and secure water supply for Greater Melbourne over the next fifty years, including specific actions for the next five years.
It was developed collaboratively by Greater Western Water, Melbourne Water, South East Water and Yarra Valley Water, in partnership with neighbouring regional water corporations.
Beyond industry collaboration, the strategy is also a shared plan with Traditional Owners and the community. As part of the development process, both groups developed a set of criteria which was used to assess and short-list future options.
We're in a five-year implementation phase and each of Melbourne's water corporations have already begun delivering on projects which support outcomes of the strategy. This work is being coordinated through the Managing Directors Accord, set up to tackle the region’s biggest challenges.
Progress against the strategy is reported at the end of each year as part of the Annual Water Outlook. View Melbourne's 2024 Water Outlook.
Across Greater Melbourne, we're facing some big water challenges. Our population is growing and we're using more water, our climate is drying and there's less water in our rivers. Add to that an expanding grid of customers and a thriving economy, and we're seeing increasing pressure put on our most valuable resource – water.
Looking forward, under some climate and demand scenarios, we’ll start reaching an imbalance in supply and demand in the next ten years. That means we’ll have to take action beyond our current solutions to ensure Greater Melbourne has enough water into the future.
Our current water storage levels are secure, but from history we know droughts can start suddenly and last for an extended period. Even if we don’t experience a drought over the coming decade, the amount of water we receive from our catchments may not be enough to meet our needs.
Responding to this potential water supply shortfall will require investment in significant infrastructure. This infrastructure takes a long time to plan and build. By planning and preparing now, and ensuring infrastructure is ready to be built when needed, we can ensure that we make the right investment at the right time.
There's no single solution to the complex challenges we face. Water for Life will deliver a range of options in three categories:
Enhancing and expanding our existing system (including new manufactured water sources, like desalination).
Water efficiency (including finding ways to use less water in our homes, businesses, communities and distribution networks, like through behaviour change programs, digital meters and water efficient household appliances).
Integrated water management (including using recycled water and stormwater for non-drinking uses, to reduce demand on our drinking water supplies).
