WEM Procedures Content Review

On 8 July 2025, the Coordinator published the first WEM Operation Effectiveness Report that covered matters outlined in clauses 2.16.13A, 2.16.13B and 2.16.13E of the ESM Rules.  

A key theme that emerged from this report is the need for greater transparency, including from the market bodies in performing their functions under the ESM Rules. Greater transparency will provide current and prospective participants with the complete information they require to make operational and investment decisions. 

One of the proposals to address this theme was for WEM Procedures to be completed and published in a timely manner, and prompt updates made when required. 

The Coordinator is aware that market bodies are already working to improve their WEM Procedures. To support this, the Coordinator is commencing a review of WEM Procedures content.  

The objective is to assess the content of selected existing WEM Procedures to determine, using the guiding principles in the Scope of Work for this review, whether: 

• the heads of power for the WEM Procedure are appropriate; 

• there is incomplete information in the WEM Procedure;  

• the WEM Procedure delegates matters to subordinate instruments not foreshadowed by the ESM Rules; and 

• any content within the WEM Procedure is no longer consistent with the ESM Rules. 

This Review is being conducted in consultation with the Market Advisory Committee and the WEM Procedures Content Review Working Group. 

Guiding Principles  

The guiding principles for the WEM Procedures Content Review are that WEM Procedures must: 

• be consistent with the State Electricity Objective; 

• provide clear and practical descriptions of technical and market processes; 

• clearly explain Rule Participant obligations; 

• not unnecessarily delegate responsibility to instruments that are not identified within the ESM Rules; and 

• ensure that information is presented in ways that are accessible and can be interpreted reliably by a wide variety of industry stakeholders. 

Identified WEM Procedures  

The following WEM Procedures were identified for inclusion in this review.