Market Wholesale Electricity Market (WA)
StageFinal Report
ConvenorAEMO WEM
Accepting submissions?No
Submissions close28/07/2023

Consultation process

The consultation process is outlined below. Dates are indicative only and subject to change.

  • APCWG forum
    14 June 2023
  • Publication of Procedure Change Proposal
    20 June 2023
  • Closing date for submissions on Procedure Change Proposal
    18 July 2023
  • Publication of Procedure Change Report
    18 August 2023
  • Proposed commencement of amended WEM Procedure version 6.0
    18 August 2023
  • Proposed commencement of amended WEM Procedure version 7.0
    1 October 2023

Procedure Change Proposal

Wholesale Electricity Market Rules – Clause 2.10

Date of Notice: 20 June 2023

Matter under Consultation

AEMO has initiated this Procedure Change Proposal to amend the WEM Reserve Capacity Security Procedure to: 

  • Integrate changes to allow Market Participants to submit electronic copies of Security Deposit deeds, bank guarantees and bank undertakings. Originals must still be provided within 20 business days. The amendments will result in improvements to the process based on the operational experience of processing Reserve Capacity Security during the 2022 Reserve Capacity Cycle.
  • Incorporates changes relating to the Wholesale Electricity Amendment (Tranche 5 Amendments) Rules relating to the Required Level calculations to account for Separately Certified Components from the 2023-24 Capacity Year. These changes will commence on 1 October 2023.  
  • reinforce alignment to the WEM Rules, and make other minor administrative changes. 

Further details are provided in the Procedure Change Proposal published with this notice. The proposed amended WEM Procedures are also published with this notice. 

AEMO has released a revised Procedure Change Proposal with further amendments. It includes changes to require hard copies of bank guarantees to be provided before the deadline in clause 4.1.13 of the Procedure.

 This consultation has now closed. The Procedure Change Report is published below.


Invitation to Make Submissions

AEMO invites submissions on this Procedure Change Proposal, including any alternative options or drafting you consider may improve the proposed WEM Procedure or better meet the Wholesale Market Objectives specified in section 122(2) of the Electricity Industry Act 2004 (and clause 1.2.1 of the WEM Rules).   

Please identify any parts of your submission that you wish to remain confidential, and explain why. AEMO may still publish that information if it does not consider it to be confidential, but will consult with you before doing so. 


Before the closing date for submissions, you may request a meeting with AEMO to discuss the issues and proposed changes raised in the Procedure Change Proposal, stating why you consider a meeting is necessary or desirable. 

If appropriate, meetings may be held jointly with other stakeholders. Subject to confidentiality restrictions, AEMO will generally make details of matters discussed at a meeting available to other stakeholders, and may publish those details. 

Closing Date and Time

Submissions in response to this Procedure Change Proposal should be sent by email to, to reach AEMO by 5.00 pm (AWST) on 28 July 2023

All submissions must be in electronic format (pdf or Microsoft Word). Submissions should use the Procedure Change Submission form available on this page

AEMO is not obliged to consider submissions received after the closing date and time. Any late submissions should explain the reason for delay and the detriment to you if AEMO does not consider your submission. 


All submissions will be published on AEMO’s website. Confidential information will not be published, other than as specified above.


No submissions were received  

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