Overview

Type
Sector
Electricity
Segment
Distribution
Transmission
Region
Australian Capital Territory
New South Wales
Queensland
South Australia
Tasmania
Victoria
Status
Current
Effective date
Categories
Benchmarking

Annual benchmarking reports 2025

In the annual benchmarking reports we examine the relative efficiency of the distribution and transmission electricity network service providers. In doing this, we consider the characteristics of each network business, and how their productivity compares at the aggregate level and for the outputs they deliver to consumers. We developed the reports using publicly available data that we collected after an extensive consultation process that aligned with our Expenditure Forecast Assessment Guideline.

Translog opex cost function development

Our distribution benchmarking reports include productivity results from econometric opex cost function models. We initiated a review into the performance of these models with the release for consultation of Quantonomics’ phase 1 memorandum in November 2024. We have now released for consultation a phase 2 report prepared by Quantonomics. 

 

 

Enquiries about these reports should be directed to the AER at AERInquiryataer [dot] gov [dot] au (AERInquiry[at]aer[dot]gov[dot]au), or call on 1300 585 165.

 

Key Documents

AER - 2025 Annual Benchmarking Report - Electricity distribution network service providers - November 2025

Authors
AER
Content type
Document

AER - 2025 Annual Benchmarking Report - Electricity transmission network service providers - November 2025

Authors
AER
Content type
Document

Quantonomics - Report Phase 2 - 26 November 2025

Authors
Quantonomics
Content type
Document