On 21 September 2022, Transgrid submitted an application under clause 6A.7.2 of the National Electricity Rules to the AER for a negative network support pass through of costs due to its actual network support expenditure for 2021–22 being higher than what was forecast in Transgrid’s 2018–23 revenue determination.

Transgrid's application is seeking a negative network support pass through amount of $10,509,065.