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Monitoring the new WEM

To ensure efficient operation of the Wholesale Electricity Market (WEM) in WA, the WEM Rules set up general trading obligations for market participants. These obligations are binding on all market participants.

The ERA is required to develop an Offer Construction Guideline and Trading Conduct Guideline under WEM Rule 2.16D.1. These Guidelines provide regulatory guidance on how market participants can fulfill their general trading obligations under the WEM Rules.

On 8 August 2024, Energy Policy WA (EPWA) published the Exposure Draft of WEM Amending Rules (FCESS Cost Review Amendments) (Exposure Draft). The Exposure Draft proposed amendments to the WEM Rules which affected the ERA’s regulatory guidance to market participants on their general trading obligations.

On 5 September 2024, the ERA published a first draft of the Guidelines and a Draft Report. The ERA sought stakeholder feedback by 3 October 2024. The ERA received seven submissions.

On 29 October 2024, the Minister for Energy approved the WEM Amendment (FCESS Cost Review) Rules (Amending Rules). Schedule 2 of the Amending Rules include changes to the market power mitigation framework and general trading obligations that affect the ERA’s Guidelines.

On 5 November 2024, the ERA published a second draft of the Guidelines and a Second Draft Report and sought stakeholder feedback by 2 December 2024. The ERA received five submissions.

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Final Report

0.37 MB

20 Jan 2025

Offer Construction Guideline (tracked changes)

0.87 MB

20 Jan 2025

Offer Construction Guideline (clean version)

0.84 MB

20 Jan 2025

Trading Conduct Guideline (tracked changes)

0.33 MB

20 Jan 2025

Trading Conduct Guideline (clean version)

0.32 MB

20 Jan 2025

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Second Draft report

0.53 MB

05 Nov 2024

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Draft report

0.34 MB

05 Sep 2024

Offer construction guideline (tracked changes)

0.93 MB

05 Sep 2024

Offer construction guideline (clean version)

0.87 MB

05 Sep 2024

Trading conduct guideline (tracked changes)

0.28 MB

05 Sep 2024

Trading Conduct guideline (clean version)

0.28 MB

05 Sep 2024

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Final Report

0.67 MB

11 Sep 2023

Offer construction guideline

0.83 MB

11 Sep 2023

Trading conduct guideline

0.26 MB

11 Sep 2023

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Draft offer construction guideline

0.80 MB

21 Jun 2023

Draft Trading conduct guideline

0.33 MB

21 Jun 2023

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Draft offer construction guideline

0.88 MB

23 Dec 2022

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Alinta Energy

0.11 MB

20 Feb 2023

Australian Energy Council

0.23 MB

20 Feb 2023

Bright Energy Investments

0.44 MB

20 Feb 2023

Collgar Renewables

0.24 MB

20 Feb 2023

Shell

0.16 MB

20 Feb 2023

Synergy

0.52 MB

20 Feb 2023

Trans Alta

0.55 MB

20 Feb 2023

Links

Electricity Industry (Wholesale Electricity Market) Regulations 2004
Exposure Draft of the FCESS Cost Review Amending Rules Wholesale Electricity Ma…
Amendment (FCESS Cost Review) Rules 2024