Overview

AER position
Consultation

Annual Benchmarking Reports

The AER released the 2025 annual benchmarking reports for distribution and transmission on 27 November 2025.

AER - 2025 Annual Benchmarking Report - Electricity distribution network service providers - November 2025
PDF (684.55KB) View details

Authors
AER
Document

AER - 2025 Annual Benchmarking Report - Electricity transmission network service providers - November 2025
PDF (564.34KB) View details

Authors
AER
Document

Consultant reports

The AER’s 2025 annual benchmarking reports are supported by two expert reports and two memoranda from Quantonomics.

Quantonomics - Benchmarking results for the AER - distribution - November 2025
PDF (3.52MB) View details

Authors
Quantonomics
Document

Quantonomics - Benchmarking results for the AER - transmission - November 2025
PDF (1.85MB) View details

Authors
Quantonomics
Document

Quantonomics - Memorandum - Output Index Weights - 17 June 2025
PDF (505.98KB) View details

Authors
Quantonomics
Document

Quantonomics - Memorandum - Output Index Weights - Supplementary Analysis -11 November 2025
PDF (3.33MB) View details

Authors
Quantonomics
Document

Supporting information

The underlying data and calculations used in the benchmarking reports and memoranda are available. 

AER - 2025 Partial Performance Indicators for distribution
XLSX (2.71MB) View details

Authors
AER
Document

AER - 2025 Partial Performance Indicators for transmission
XLSX (318.04KB) View details

Authors
AER
Document

Quantonomics - DNSP Supporting files
ZIP (16.75MB) View details

Authors
Quantonomics
Document

Quantonomics - TNSP Supporting files
ZIP (5.42MB) View details

Authors
Quantonomics
Document

Quantonomics - Output Index Weights
ZIP (2.56MB) View details

Authors
Quantonomics
Document

Quantonomics - Output Index Weights - Supplementary Analysis
ZIP (18.22MB) View details

Authors
Quantonomics
Document

Submissions

Under the National Electricity Rules, the AER must consult with network service providers in the development of performance reports and we may also consult with other stakeholders who we consider have an interest in the relevant performance report.

We received the following submissions from electricity network service providers and other industry stakeholders in the development of the 2025 annual benchmarking reports.

Ausgrid - Submission - 2025 DNSP Annual Benchmarking Report - 11 September 2025
PDF (363.54KB) View details

Authors
Ausgrid
Document

AusNet Distribution - Submission - 2025 DNSP Annual Benchmarking Report - 12 September 2025
PDF (430.41KB) View details

Authors
AusNet Services (D)
Document

Ergon Energy and Energex - Submission - 2025 DNSP Annual Benchmarking Report - 10 September 2025
PDF (450.54KB) View details

Authors
Energy Queensland Limited (EQL)
Document

Essential Energy - Submission - 2025 DNSP Annual Benchmarking Report - 10 September 2025
PDF (278.12KB) View details

Authors
Essential Energy
Document

Evoenergy - Submission - 2025 DNSP Annual Benchmarking Report - 19 September 2025
PDF (211.6KB) View details

Authors
Evoenergy
Document

Jemena - Submission - 2025 DNSP Annual Benchmarking Report - 13 September 2025
PDF (266.35KB) View details

Authors
Jemena
Document

SA Power Networks - Submission - 2025 DNSP Annual Benchmarking Report - 22 September 2025
PDF (818.63KB) View details

Authors
SA Power Networks (SAPN)
Document

TasNetworks - Submission - 2025 DNSP Annual Benchmarking Report - 12 September 2025
PDF (141.92KB) View details

Authors
TasNetworks (Distribution)
Document

Powerlink - Submission - 2025 TNSP Annual Benchmarking Report - 18 September 2025
PDF (886.29KB) View details

Authors
Powerlink
Document