Exposure Draft of the Miscellaneous Amendments No.3 WEM Amending Rules

Energy Policy WA published the Exposure Draft of WEM Amending Rules (Miscellaneous Amendments No. 3) on 10 June 2024. Amongst other amendments, this included proposed WEM Amending Rules to:

• require AEMO to inform EPWA and the ERA of any issues that are likely to adversely affect the effectiveness of the market or achievement of the Wholesale Market Objectives;
• require AEMO to investigate and report on significant incidents in the SWIS;
• reduce the deadline for providing AEMO any final details of a Forced Outage from fifteen days to seven days after the relevant Trading Day to allow for certain settlement calculations to be performed earlier;
• allow AEMO to proactively share information with EPWA and the ERA without requiring a formal request;
• clarify the publication requirements associated with NCESS contracts;
• allow AEMO to require more reserve capacity security to be lodged in the event that security has been drawn upon due to Facility not commencing on time;
• provide clarity around the Availability Duration Gap determination for all years in the LT PASA horizon;
• amend the definitions of Enablement Maximum and Enablement Minimum to improve clarity, and ensure that Enablement Limits accurately reflect the capability of a Facility;
• modify the settlement rules to allocate the costs of NCESS Contracts for peak capacity as a Reserve Capacity cost, i.e. on the basis of IRCR;
• remove barriers to entry and encourage participation of aggregated DSPs in the RCM;
• update clause 7.4.35 to allow a Market Participant to make a Real-Time Market Submission after Gate Closure if directed to do so by AEMO;
• refine the cost allocation methodology for Contingency Reserve Raise;
• define a Facility by its Metering Point, rather than its connection point, to allow for registration of multiple Facilities behind a single connection point following approval from AEMO;
• include transitional rules to extend the timeframes related to the submission, consideration and approval of AEMO’s Allowable Revenue for the 2025 to 2028 period;
• clarify the settlement provisions related to calculating FCESS Uplift Payments; and
• error corrections and enhancements across all the WEM Rules.

You can view the Miscellaneous Amendments No. 3 Exposure Draft below.

Consultation closed at 5:00pm (AWST) 8 July 2024.

The Minister for Energy has approved the Wholesale Electricity Market Amendment (Miscellaneous Amendments No.3) Rules 2024 and notice of the amendments was published in the Government Gazette on 4 October 2024.