Market Development

Information on the development of the Wholesale Electricity Market Rules, Gas Services Information Rules and Pilbara Networks Rules.
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The framework that underpins the Wholesale Electricity Market (WEM), Gas Services Information (GSI) and Pilbara Networks Rules (PNR) allows for the relevant rules, procedures and markets to evolve over time.

This page provides a gateway to various market development activities and processes. Further information can be found on the web pages for the Wholesale Electricity Market, Gas Services Information, and Pilbara. A comprehensive list of primary and subsidiary legislation, codes, rules and orders can be found on the web page WA Energy Legislation.

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Rule Change Process

Information on how to propose a rule change under the Wholesale Electricity Market Rules, Gas Services Information Rules, and Pilbara Network Rules.
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New Market Implementation

Information relevant to the new Wholesale Electricity Market, that commenced in October 2023.
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Energy Market Reviews

Information on current and past reviews of any aspects of the Wholesale Electricity Market (WEM), Gas Service Information (GSI) and the Pilbara Network Rules (PNR).
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Market Advisory Committee

The Market Advisory Committee provides advice to the Coordinator of Energy on Rule Change Proposals and the evolution of the Wholesale Electricity Market.
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Gas Advisory Board

The Gas Advisory Board provides advice to the Coordinator of Energy on Rule Change Proposals and the evolution of the Gas Services Information Rules.
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Pilbara Advisory Committee

The Pilbara Advisory Committee provides advice to the Coordinator of Energy on Rule Change Proposals and the evolution of the Pilbara Networks Rules.
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WEM Procedure Change Process

Information on the process for amending procedures under the Wholesale Electricity Market Rules, including those for which the Coordinator of Energy is responsible.
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Transition to Low Emissions Energy Sector

The Wholesale Electricity Market in the South West Interconnected System is undergoing an unprecedented transition to a low emissions energy system.
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Regulation Changes

Information on changes to the Electricity Industry (Electricity System and Market) Regulations 2004, Electricity Industry (Pilbara Networks) Regulations 2021 and Gas Services Information Regulations 2012 impacting the development and implementation of the ESM Rules, GSI Rules and PNR.

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