Review of water and sewerage services demand forecasting methods


We have reviewed the methods we use to forecast demand for water and sewerage services in the ACT. We decided to review the demand forecasting methods in our 2018 price investigation as part of our strategy of regularly reviewing our modelling approaches.

The final report presents our final decision on the methods and data we will use to forecast demand for water and sewerage services in our next price investigation for the regulatory period beginning on 1 July 2023.

Release of final report

On Thursday 9 December 2021, we released the final report on our review of how we forecast demand for water and sewerage services in the ACT.

A copy of the final report and our consultant’s report is available below.

Submissions on Draft Report

Document NameTypeSizePublished date
Submission 1 - Icon WaterPDF301.0 KB2 Nov 2021

Release of draft report: Water and sewerage services demand forecasting

Submissions on the draft report closed on Monday 25 October 2021.

We held a virtual stakeholder workshop on Wednesday 6 October 2021.

Document NameTypeSizePublished date
Draft report – Review of water and sewerage services demand forecasting methodsPDF2.3 MB20 Sep 2021

Submissions on Issues Paper

Document NameTypeSizePublished date
Submission 2 - Professor Ian WhitePDF290.7 KB29 Jul 2021
Submission 1 - Icon WaterPDF1.1 MB29 Jul 2021

Extension of submission deadline and workshop details

We held a virtual workshop on Monday 28 June 2021 to discuss the issues for this review with stakeholders.

Document NameTypeSizePublished date

Release of issues paper: Water and sewerage services demand forecasting

On Friday 28 May 2021, we released an issues paper on our review of how we forecast demand for water and sewerage services in the ACT.

Read the issues paper here.Submissions on the issues paper closed on Friday 9 July 2021.

Document NameTypeSizePublished date
Issues paper - Review of water and sewerage services demand forecasting methodsPDF1.4 MB28 May 2021