1 Introduction
1.1 Audience
AEMO Australian Energy Market Operator provides this information as a service targeting business analysts and IT staff in Registered Participant See Relevant Rules or Procedures companies.
The primary audience is NMISP National Metering Identifier Service Provider. Responsible for managing Secondary Settlement Points (SSPs), DNSP Distribution Network Service Provider. A business that owns, operates or controls an electricity distribution network., FRMP Financially Responsible Market Participant, usually a retailer, Generator, Market Customer or a Market Small Generator Aggregator, identified in respect of a connection point. Responsible for dealings with AEMO in relation to a specific load., MC Meter Coordinator; The Role Code used in MSATS for an MC is RP., and MDPs.
1.2 Objective
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. - Secondary Settlement Points - November 2026 (Release) describes the projects planned by AEMO from a participant perspective and includes any system related changes for participants.
1.3 Status
|
Version |
Status |
|---|---|
|
1.00 |
In pre-production. |
|
0.07 |
The design is mostly complete. We expect more changes as AEMO testing and feedback continues. Participants can commence development providing they understand there may be some changes. |
|
0.06 |
In progress. The design is not ready for participants’ builds. |
|
0.05 |
In progress. The design is not ready for participants’ builds. |
|
0.04 |
In progress. The design is not ready for participants’ builds. |
|
0.03 |
In progress. The design is not ready for participants’ builds. |
|
0.02 |
In progress. The design is not ready for participants’ builds. |
|
0.01 |
Presents the MSATS - Secondary Settlement Points - November 2026 evolving design. Please send feedback to techwriters@aemo.com.au |
1.4 Release dates
Scheduled for implementation in:
- Pre-production AEMO’s test system available to participants: 4 September 2026
- Production AEMO’s live system: 25 October 2026
1.5 Projects and enhancements
For changes and enhancements for this Release, see High-level changes.
1.6 Rule and procedure changes
|
Title |
Status |
Effective |
|---|---|---|
|
National Electricity Amendment (Unlocking CER benefits through flexible trading) Rule 2024: Schedules 3,4, and 5 |
Final |
1 November 2026 |
|
Meter Data Management (MDM) Procedure v4.7 |
Amendment |
1 November 2026 |
|
Service Level Procedure Embedded Network Manager Services |
Amendment |
1 November 2026 |
|
Service Level Procedure NMI Service Level Provider v1.0 |
Draft |
1 November 2026 |
|
Service Level Procedure MDP Services v2.6 |
Amendment |
1 November 2026 |
|
Service Level Procedure MP Services v2.1 |
Amendment |
1 November 2026 |
|
B2B Procedure: Technical Delivery Specification |
Amendment |
1 November 2026 |
|
B2B Procedure: Service Order Process |
Amendment |
1 November 2026 |
|
B2B Procedure One Way Notification Process |
Amendment |
1 November 2026 |
|
National Metering Identifier procedure v7.5 |
Amendment |
1 November 2026 |
|
B2B Procedure: Meter Data Process |
Amendment |
1 November 2026 |
|
B2B Procedure: Customer and Site Details Notification Process |
Amendment |
1 November 2026 |
|
MSATS Procedures - Principles and Obligations for All Connection Points v8.1 |
Amendment |
1 November 2026 |
|
Standing Data for MSATS v6.3 |
Amendment |
1 November 2026 |
|
Metrology Procedure Part A v8.2 |
Amendment |
1 November 2026 |
|
Metrology Procedure Part B v8.2 |
Amendment |
1 November 2026 |
|
Qualification Procedure (Metering Providers, Metering Data Providers & Embedded Network Managers) |
Final |
1 October 2025 |
|
Default and Registration Procedure |
Final |
1 November 2026 |
1.7 Related technical specifications
|
Title |
Description |
|---|---|
|
System changes required for participants to support the implementation of Flexible Trading Arrangements (FTA), including type 9 metering installations |
|
|
New B2M aseXML schema version r47 |
|
|
New B2B aseXML schema version r48 |
|
|
PMS is updated to support the Premises Network Service Provider (PNSP) role and NMI Service Provider (NMISP) roles introduced for Secondary Settlement Point (SSP) arrangements. It also includes validations to support SSPs |
1.8 Related documents
These guides and resources are updated according to this technical specification and published for the pre-production Release Date.
|
Title |
Description |
Status |
|---|---|---|
|
aseXML r48 schema files |
Published |
|
|
Describes the mapping between the MSATS B2B procedures and the B2B aseXML schema |
In progress |
|
|
Describes the mapping between the MSATS B2M procedures and the B2M aseXML schema |
In progress |
|
|
Information about the B2B e-Hub functions available in the Market Settlement and Transfer System (MSATS) |
In progress |
|
|
Information about CATS and MDM reports |
In progress |
|
|
Information about the B2M functions available in the Market Settlement and Transfer System (MSATS) web portal |
In progress |
|
|
Describes setting up and using the B2B Validation Module software |
In progress |
|
|
Reference guide assisting participants interacting with MSATS to understand MSATS NMI Standing Data tables |
Published |
1.9 Related software
|
Software |
Change |
Available |
|---|---|---|
|
New version updated for aseXML schema r48 Pre-production:
|
||
|
B2B Batch Handlers |
||
1.10 Approval to change
AEMO is seeking Participant feedback from the Electricity Retail Consultative Forum (ERCF Electricity Retail Consultative Forum), 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. Working Group A group is a collection of one or many roles with permissions. AEMO System Administrator or Participant Administrator can optionally assign specific Groups to the users to simplify the management of users and roles., NEM Reform Implementation Forum, Industry Test Working Group, and interested parties.
1.11 Market systems user group meetings
The Market Systems User A user is a person who uses the system, either through UI (interactive) or by Batch processing (batch). To use the system each user must be associated with a participant ID and a Role. The Role assigned to the user determines the menu options and interfaces the user can access, and what actions (privileges) the user can complete. Group (MSUG Market Systems User Group) is an industry user group established to discuss NEM wholesale and retail IT systems releases. Its purpose is to facilitate the continuing improvement of AEMO's IT systems by seeking feedback and collaboration from participants.
MSUG meetings are open to all interested parties, with invitations sent to all included on the distribution list. If you have a technical question for a project and want to attend the MSUG ask your company’s support team to include your email address in their AEMO Help Desk Bulletin (CRM) distribution list.
1.12 Version numbers
Incremental version numbers such as 1.01, 2.01 and so on mean there is a minor change to the technical specification.
Major version numbers such as 1.00, 2.00 means there are substantial changes to the technical specification. Participants must carefully review these changes, detailed Page 1.
1.13 Changes in this version
This version has the following changes:
- Adds c1 and c4 report examples.
- Adds RM29 examples.
- Adds field names, permitted values and aseXML examples for the Service Order – Update Standing Data transaction.
- Adds EMMS – Portfolio Management System - September 2026 to related technical specifications