AER - Draft determination - Default market offer prices 2025–26 - Cost assessment model

On 13 March 2025 the AER released its model for calculating DMO prices for 2025–26.

As set out in the DMO 7 draft determination, the AER’s approach is to use a cost build-up approach to calculate the DMO price, taking into account forecast costs for wholesale electricity, network, environment and retail costs. The model calculates the expected changes in these costs for 2025–26 for each area and customer type.

The information contained in the model is set out in the DMO 7 draft determination, and we have published the model to provide stakeholders with additional transparency on how we propose to calculate the DMO prices for 2025–26.