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 report using publicly available data that we collected after an extensive consultation process that aligned with the development of our Expenditure Forecast Assessment Guideline.
In this year’s distribution report we finalised implementation of our approach to addressing differences in capitalisation between network service providers. Given this, the results in this report are not directly comparable with those in previous reports (other than the 2023 Annual Benchmarking Report, which contained initial implementation of our approach).
The benchmarking calculations and dataset, and submissions by the network services providers, can be found at Annual Benchmarking Reports 2024.
Annual Benchmarking Reports
Consultant reports - Quantonomics
Distribution – Quantonomics’ benchmarking results for the AER – October 2024
Transmission – Quantonomics’ benchmarking results for the AER – July 2024
Distribution – Quantonomics' memorandum on opex cost function development – November 2024