Post-tax revenue models (transmission and distribution) - January 2015 amendment

Post tax revenue model
Date initiated: 
3 October 2014
Effective date: 
29 January 2015
AER reference: 


The AER has published new versions of the post-tax revenue models (PTRMs) that apply to future electricity distribution and transmission determinations. The main change is that the new PTRMs allow the rate of return on debt to vary each year within the regulatory control period.

The National Electricity Rules (NER) require that the AER develop and publish certain guidelines, models and schemes that will be applied to distribution and transmission networks service providers. On 29 January 2015, in accordance with clauses 6.4.1(b) and 6A.5.2(b) of the NER, the AER published:

  • An amended distribution PTRM (version 3) and associated handbook.
  • An amended transmission PTRM (version 3) and associated handbook.
  • A final decision document and associated log of detailed changes to the PTRM.