Historical versions of the Electricity System and Market Rules (formerly known as the Wholesale Electricity Market Rules) will be updated on this page as they are superseded by new changes. For the current version of the Electricity System and Market Rules see the Electricity System and Market Rules webpage.
Note: Rules published prior to 4 June 2025 will still be referred to as the Wholesale Electricity Market Rules.
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2018
2017
Note that the WEM Rules of 13 October 2017 were updated on 6 December 2017 due to omissions in the Market Rules arising from the application of the eight sets of Amending Rules in the Gazettes from 25 November 2015 to 30 June 2017
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