AER publishes draft amended Rebidding and Technical Parameters Guideline - request for submissions

The Australian Energy Regulator (AER) has today published for consultation the Draft Rebidding and Technical Parameters Guideline to give effect to 5 Minute Settlement.

On 28 November 2017, the Australian Energy Market Commission (AEMC) released its final rule determination to change the settlement period for the electricity spot price from 30 minutes to five minutes, starting 1 July 2021 (“5 minute settlement Rule change”). As part of this rule change, the AER must amend and publish the guidelines maintained under clause 3.8.22 in respect of rebidding. We must publish the amended Rebidding and Technical Parameters Guideline by 1 December 2019 to take effect from the commencement of 5 minute settlement.

In accordance with the Rule requirements, our amendments are limited to those necessary to address the amending Rule. Our examination revealed that only minor amendments to the guideline are necessary.

In accordance with the rules consultation procedures set out in clause 8.9 of the Rules, we give notice of consultation in relation to amending the Rebidding and Technical Parameters Guideline to give effect to 5 Minute Settlement.

Invitation for Submissions

We invite interested stakeholders to make written submissions in response to the issues raised in this paper, the draft guideline, or any other matter relevant to the development of the changes to the guideline, by the close of business 16 October 2019.

Submissions should be sent electronically to: with the email subject: Draft Rebidding and technical parameters guideline and for the attention of: Mark McLeish, General Manager (A/g), Market Performance Branch.

Alternatively, written submissions can also be sent to:

Mr Mark McLeish
General Manager (A/g), Market Performance
Australian Energy Regulator
GPO Box 520
Melbourne Vic 3001

We prefer that all submissions be publicly available to facilitate an informed and transparent consultative process. Submissions will be treated as public documents unless otherwise requested. We request parties wishing to submit confidential information:

  • clearly identify the information that is the subject of the confidentiality claim
  • provide a non-confidential version of the submission in a form suitable for publication.

We will place all non-confidential submissions on our website. For further information regarding our use and disclosure of information provided to us, see the ACCC/AER Information Policy.

Enquiries about this paper, or about lodging submissions, should be directed to the Market Performance branch of the AER via

Issued date: 
18 September 2019
AER reference: 
AC 133/19