Rule Changes: Open

Unintended scheduling results - decision timing

Reference:
GRC0041
Stage:
Consultation on request for rule change (expedited)
Proponents:
AEMO
Project Leader:
Shivana Thiru Moorthy
Date initiated:
19-Sep-2017
Overview

The AEMC has released a consultation paper on proposed amendments to the time for AEMO to respond to requests for investigations of an unintended scheduling result in the Victorian Declared Wholesale Gas Market (DWGM).

Consultation paper

The AEMC has released a consultation paper on proposed amendments to the time for AEMO to respond to requests for investigations of an unintended scheduling result in the Victorian Declared Wholesale Gas Market (DWGM).
The AEMC has commenced an expedited rule making process on the grounds that this rule change request is a request for a non-controversial rule. Under an expedited rule making process, a final rule determination must be made within six weeks of the initiation of the process.

Written objections to the expedited process are to be submitted with the AEMC by 3 October 2017. Submissions in response to the rule change request and consultation paper are to be submitted by 17 October 2017.

Background

AEMO operates the Victorian Declared Wholesale Gas Market (DWGM) according to the National Gas Rules (NGR) and associated procedures. On occasions, AEMO may issue scheduling instructions for the market’s operating schedule that are erroneous.  Such incorrect scheduling instructions may meet the requirements of an ‘unintended scheduling result’.

A market participant can currently request that AEMO investigate if an unintended scheduling result has occurred.  The NGR require AEMO to investigate the matter and publish a decision by no later than 20 business days from the date of receipt of the request.  Depending on when the request is made, the 20 business day cut off may occur before AEMO obtains final settlement data.

AEMO has proposed in its rule change request extend the deadline for when a decision on whether an unintended scheduling result has occurred must be published to the later of:

  • 20 business days after the request was made; or
  • 20 business days after the publication of final statements.
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Documentation