Rule Change: Open
On 5 September 2019 the Commission published a draft determination and draft rule that simplifies risk management for market participants and improves wholesale gas prices in the Victorian Declared Wholesale Gas Market (DWGM).
The draft rule amends the National Gas Rules (NGR), in relation to the DWGM, by:
- requiring AEMO to take into account transmission constraints that limit withdrawals in pricing schedules, which determine market prices
- simplifying the mechanism that market participants can use to protect against the risk of incurring congestion uplift payments by removing the need to inject gas and submit injection hedge nominations.
The draft rule does not spread congestion uplift payments across all market participants, as suggested by the rule change proponent, but instead retains the current approach in which they are allocated as far as practicable to market participants that cause congestion. Spreading congestion uplift would remove an incentive for market participants to avoid causing some types of constraints.
In deciding to make this draft rule, the Commission has taken into account interactions with the draft rule for the separate rule change on DWGM improvement to AMDQ regime, also published on 5 September 2019.
Submissions on the draft determination and draft rule closed on 24 October 2019.
On 14 March 2019 the AEMC published a consultation paper on the rule change request. Eleven submissions were received, which can be found below.
The AEMC also held a stakeholder workshop in Melbourne on 16 May 2019 with extensive participation from a wide range of participants. Slides from the workshop are available below.
On 9 December 2019 the AEMC held a technical workshop to discuss implementation issues and interactions between the rule changes on DWGM simpler wholesale price (GRC0049) and DWGM improvement to AMDQ regime (GRC0051). Discussion notes from the workshop can be found below.
On 13 June 2019 the Commission published a notice under s. 317 of the NGL to extend the publication date of the draft determination to 5 September 2019. The Commission considers that this extension is necessary due to the complexity of the issues raised in the rule change request.
On 14 November 2019 the Commission published a notice under s. 317 of the NGL to extend the publication date of the final determination to 12 March 2020. The Commission considers that this extension is necessary due to the complexity and volume of the issues raised in stakeholder submissions.
On 5 November 2018, the AEMC received a rule change request from the Victorian Minister for Energy, Environment and Climate Change that sought to amend the NGR by spreading the recovery of congestion uplift costs across market participants, instead of the current approach that aims to recover congestion uplift payments from those parties that caused the congestion.
On 24 November 2016, the AEMC received a rule change request from the Australian Energy Market Operator (AEMO), on behalf of EnergyAustralia. The rule change request sought to amend the NGR to allow AEMO to include physical constraints that limit scheduled withdrawals in the determination of the pricing schedule for the Victorian DWGM.
As these two rule change requests both seek to improve risk management for market participants in the DWGM the Commission has consolidated them. The consolidated rule change request is referred to as the DWGM simpler wholesale price.
On 5 November 2018, the AEMC also received two other related rule change requests from the Victorian Minister, seeking to amend the NGR:
- The DWGM forward trading market rule change request proposed establishing a forward trading exchange. On 4 July 2019 the Commission published a draft determination decision to not make this rule.
- The DWGM improvement to AMDQ regime rule change request proposed introducing separate tradeable entry and exit certificates, enabling a secondary trading platform to be introduced and making certificates available for a range of different tenures. On 5 September 2019 the Commission published a draft determination to make a more preferable rule.
The Commission is addressing these two other requests through separate rule change processes, but has considered potential interactions between all three rule change requests.
Correction of data in background paper
On 14 March 2019 the AEMC published a background paper on the DWGM in relation to the three rule change requests that were being considered by the AEMC.
On 5 September 2019, the AEMC corrected data on uplift payments that was published in the background paper. The changes are detailed in an information sheet.
|ERM||Major Energy Users|
|Origin||Victorian Department of Environment, Land, Water and Planning|
Technical working group
|Consultation paper||Information sheet|
|Background paper||Rule change request - DWGM simpler wholesale price|
|Notice under NGL||Rule change request - Application of constraints in the DTS|
|Extension notice under NGL|
|Lochard Energy||Major Energy Users|
|Meridian and Powershop||Origin|