August 2026

Audience

Financially Responsible Market Participant See Relevant Rules or Procedures (FRMPs) and Metering Data Providers along with business analysts and IT staff in Registered Participant companies.

Contents

Summary

• This document outlines the technical changes and updates related to the 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. Technical Specification for August 2026, targeting business analysts and IT staff in registered participant organizations. It details the implementation timeline, project goals, and enhancements, particularly focusing on the Shortening Settlements See Relevant Rules or Procedures Cycle (SSC) project and related schema updates.

• Document Purpose and Audience: The specification provides guidance on system changes required for the MSATS August 2026 release, primarily for Financially Responsible Market Participants and Metering Data Providers. It serves as a technical resource aligned with the National Electricity Rules See Relevant Rules or Procedures.

• Release and Implementation Dates: The release includes a pre-production phase starting Sunday, 8 June 2026, and production implementation on Sunday, 9 August 2026, with rules effective from the production date.

• Shortening Settlements Cycle (SSC) Project: The SSC aims to reduce the settlement cycle to 9 business days post-billing and introduces a new Revision 0 settlement type to enhance market efficiency and lower capital barriers for retailers.

• System and Reporting Updates: Updates include changes to the Markets Portal Web applications for registered participants only. Requires access to MarketNet. settlement screens, B2M Business-to-Market aseXML schema Specification to describe the structure of an aseXML message. version r47 to support Revision 0, and modifications to RM28 and RM30 reports to incorporate the new settlement type.

• MDP Meter Data Provider. An organisation which installs, commissions, gathers, and verifies data remotely from meters in the National Electricity Market (NEM). Data Delivery Calendar Lists the dates specified actions need to occur for the provision of metering data and settlements ready data to AEMO. Changes: The calendar is revised to reflect new due dates aligned with the SSC, including a Revision 0 deadline to inform Metering Data Providers of their obligations.

• B2M aseXML A standard for energy transactions in XML. A set of schemas and usage guidelines that define how data should be exchanged under FRC in the gas and electricity industries in Australia. Schema See aseXML Schema. Enhancements: The r47 schema update adds Revision 0 enumeration to existing reports (RM16, RM22), facilitating the handling of new settlement runs in data exchanges.

• Markets Portal Functional Enhancements: The portal incorporates Revision 0 in settlement scenarios, data cases (including bulk uploads), and various RM30 performance and quantity reports, with new tables for non-interval and interval meter data.

• Participant Responsibilities and Risks: Participants are advised not to hard code configurable fields, to review and update their systems prior to release, and to schedule Energy Rules Terms resources for upgrade; failure to upgrade will result in missing new B2M schema fields.