August 2026 Meeting Summary

The MSUG Market Systems User Group meeting contained information about:

• MSATS - Secondary Settlement Points - November 2026
  • Introduces changes to support Flexible Trading Arrangements.
  • Changes affect participant roles, standing data and settlement reporting.
  • A correction to the pre-production timeline is provided during the meeting.
• MSATS - aseXML B2M schema r47 - August 2026
  • The schema changes support upcoming settlement cycle reforms and related market initiatives.
  • Adds a new settlement run type and supporting standing data fields.
• MSATS Market Settlement and Transfer Solutions. The procedures published by AEMO under clause 7.2.8 of the National Electricity Rules, which include those governing the recording of financial responsibility for energy flows at a connection point, the transfer of that responsibility between market participants, and the recording of energy flows at a connection point. - B2B Business-to-Business. Generic term used to refer to defined business-to-business interactions between participants; excludes interactions between a participant and market systems such as MSATS. schema r48 - November 2026
  • Adds new standing data fields, participant relationship updates and enumerations.
  • Continues support for schema transformations between R46 and R48 during transition.
  • A managed transition process is planned to reduce implementation risk.
• API Application Programming Interface; a set of clearly defined methods of communication between various software components. URL Changes - August 2026
  • Confirms production release is planned for September 2026.
  • Existing URLs remain available during the transition period before retirement.
  • Participants are encouraged to complete testing and migration before production release.
• IDAM - Identity and Access Management - May 2027
  • Early information is shared on the future identity and access management model.
  • New administration roles and access management concepts are introduced.
  • More detailed design information is expected in future releases.
• IDX Industry Data Exchange - Basic Power Quality Data - August 2026
  • Delivers voltage, current and phase angle data through the IDX platform.
  • Confirms production release in August 2026.
  • Supports exchange of smart meter power quality data.
• IDX - Industry Data Exchange See Relevant Rules or Procedures Platform - June 2026
  • Provides the platform used to exchange Basic Power Quality Data.
  • Introduces APIs and web interfaces for managing data exchange.
  • Plans additional capabilities, including notifications and archive access.
• IDX - AEMO Australian Energy Market Operator Gateway software - June 2026
  • Supports data exchange with the IDX platform.
  • Includes updated gateway, monitoring and certificate management tools.
  • Recommends upgrading to supported versions to receive ongoing support.
• EMMS Energy Market Management System (formerly MMS); software, hardware, network and related processes. - Portfolio Management System System refers to all the Web-based and File-based User Interfaces, Backend Services, APIs, Databases. - August 2026
  • Improves how participant and application information is managed.
  • Enhances search and navigation within the application.
  • Delivers changes on the system side with no participant action required.
• Electricity Data Model The Electricity Data Model is the definition of the interface to participants of data published by AEMO from National Electricity Market (NEM) systems. v5.8
  • Updates to multiple packages across billing, prudentials, settlements and participant registration.
  • Introduces a new Data Model Manager version with security improvements.
• EMMS - System Security Scheduler - October 2026
  • Adds new tables and interfaces for phase two enhancements.
  • Extends APIs to support new functionality.
  • Makes additional scheduling information available through the portal.
• EMMS - Cash Dashboard - October 2026
  • New dashboard capabilities support upcoming cash security reforms.
  • Supports additional security deposit management options.
  • Updates reports and APIs to support the new capabilities.
• EMMS - Inverter Dispatch See National Electricity Rules - May 2027
  • Continues development of inverter limit communication through existing dispatch processes.
  • Reduces reliance on manual operational instructions.
  • Documents both the current interim solution and future enhancements.
•  Next MSUG
  • The next MSUG is tentatively planned for 28 October 2026.