Rule Changes: Open

Non-scheduled generation and load in central dispatch

Reference:
ERC0203
Stage:
Preparation of Draft Determination
Proponents:
ENGIE, Snowy Hydro Limited
Project Leader:
Michael Bradley
Date initiated:
21-Apr-2016
Overview

On 19 April 2017, the Australian Energy Market Commission (AEMC) gave notice that it is extending the period of time for making a draft determination and, if needed, a draft rule, under section 107 of the National Electricity Law.

On 19 April 2017, the Australian Energy Market Commission (AEMC) gave notice that it is extending the period of time for making a draft determination and, if needed, a draft rule, under section 107 of the National Electricity Law.

This extension of time is required as a result of the sufficiently complex issues raised by the rule change request. The timeframe for the draft determination has been extended to 20 June 2017.

The AEMC held a workshop on the non-scheduled generation and load in central dispatch rule change proposal in Melbourne on 24 March 2017.

At the workshop the AEMC shared the analysis it had undertaken and its assessment of possible rule change options. Participants provided feedback on the analysis and options assessment. The workshop presentation pack has been updated with summaries of the industry feedback, and is now available below.

Background

The AEMC received two related rule change requests, from Snowy Hydro and ENGIE, which seek to amend the provisions in the NER to require participation in the central dispatch process by:

  • loads above 30MW that are or intend to be price responsive; and,
  • non-scheduled non-intermittent generating units above 5 MW nameplate rating.

ENGIE also proposed two additional changes to the NER, which may operate in tandem or as alternatives to the proposed threshold reduction. These include creating a new 'soft scheduled' participant category and/or requiring changes to Australian Energy Market Operator (AEMO's) pre-dispatch and dispatch processes to take into account price responsiveness of non-scheduled generators and non-scheduled loads.

The AEMC consolidated the separate rule change proposals and commenced consultation on the combined rule change proposal on 21 April 2016.

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Documentation