Compared to previous practice the Source modelling platform has the ability to better reflect system conditions under differing scenarios. This enables better informed decisions, supporting improved operational efficiency and risk management. Source modelling enhancements will have a wide range of benefits to the Victorian water industry and broader stakeholders. Benefits include allowing Victoria to better manage environmental flow delivery, surface water storage, delivery for shared benefits, and balancing water allocation between different users.  It will also allow improved management of water trade and carryover and better support meeting our obligations under the Murray-Darling Basin Plan.

There will be four main elements for completing the transition to Source in Victoria:
  • Model development, completion, integration, enhancement and maintenance: staged completion and use of base models to meet Victoria’s hydrologic modelling and water resource planning and operation needs.
  • Enhancing implementation systems and processes: reviewing, updating and establishing systems and processes to support a successful transition.
  • Capability building and communication: supporting Victoria’s hydrologic modelling community and water resource practitioners to use Source efficiently and effectively to meet Victoria’s hydrologic modelling needs.
  • Monitoring, evaluation and reporting: tracking our progress towards successfully completing the transition will allow early identification of any required adjustments to our plan.

View a timeline of the process (JPG, 91.1 KB) from 2018-19 financial year to 2021-22 financial year.

As we complete the transition to Source, we will progressively wind back the use of REsource ALlocation Model (REALM). Consistent with current practice, no new models will be developed by DELWP using REALM. DELWP will provide only basic maintenance and support for existing REALM models and software until all major systems have efficient and effective base Source models that meet the needs of that system. Allowing for an overlap period of at least 12 months and assuming that the requirements for model development are met, REALM will no longer be supported by DELWP from July 2022. As DELWP transitions to Source, there will be efficiencies and other benefits for Victorian agencies also moving to the new common platform.

There are a number of agencies involved in the transition to Source, both within Victoria and nationally. These include Victoria’s water corporations and catchment management authorities, eWater, consultants, the Murray-Darling Basin Authority and other jurisdictions. DELWP will work closely with these organisations throughout the transition.

DELWP will lead the transition to Source in Victoria. Our role will include the following responsibilities:
  • Provide clear strategic direction on DELWP modelling priorities through this Strategy, review and report on progress against the Strategy, and adjust the Strategy as required.
  • Represent Victoria in the National Collaboration Framework and in direct discussions with eWater.
  • Identify, review and convey Victoria’s priority Source maintenance and development tasks through the National Collaboration Framework or directly to eWater, in accordance with formalised agreements.
  • Collaborate with eWater to ensure software updates continue to meet Victorian needs.
  • Develop and maintain models for complex Victorian systems, as set out in this Strategy, and collaborate with other jurisdictions in developing and maintaining inter-jurisdictional models.
  • Work with eWater and the Murray-Darling Basin Authority to reflect Victorian needs in Source documentation, develop supplementary information for users in Victoria, if required, and share documentation among the hydrologic modelling community.
  • Review models as required.
  • Collaboratively determine arrangements for model custodianship, collaboration and sharing within Victoria, including technological and business systems and processes.
  • Engage with stakeholders to share models and build confidence in model outputs.
  • Develop and lead implementation of a Victorian Source capability plan.
  • Support Victorian participation in a collaborative user forum.
We are seeking Victorian water corporations and catchment management authorities to:
  • Identify internal planning and decision-making processes that could be better supported by a Source model.
  • Discuss current and future opportunities for developing Source models with DELWP to identify potential efficiencies through sharing models or developing models collaboratively.
  • Nominate an internal champion to be the first point of contact for Source related activities within the organisation and represent the organisation in collaborative forums.
  • Develop Source models as required to meet organisational decision-making needs, referring to documentation and supplementary information for Victorian Source users where appropriate.
  • Share models with DELWP and others, as appropriate, and use as agreed.
  • Identify the organisation’s priority Source maintenance and development tasks and convey to DELWP and eWater.
  • Participate in the Collaborative User Forum and other capability-building activities.

As the software developer and provider, eWater will undertake software maintenance and enhancement, as well as providing technical support, in accordance with formalised agreements through the National Collaboration Framework and directly between DELWP and eWater.

Page last updated: 15/07/19