About Data Subscription

Overview

AEMO Australian Energy Market Operator's systems generate files continually, based on changes, five-minute dispatch runs, etc. These files (also known as "reports") are typically comma-separated values (CSV) files. The files contain private and public data available to each participant.

AEMO recommends participant use the EMMS Energy Market Management System (formerly MMS); software, hardware, network and related processes. Data Interchange A set of cooperating applications used to replicate data between AEMO's energy market systems and a participant's DBMS conforming to the MMS Data Model. products (supplied by AEMO) to automate receiving and storage of the subscribed reports from Data Subscriptions. The data is conveniently stored on the participant's DBMS Database Management System conforming to the MMS Data Model The definition of the interface to participants of data published by AEMO for gas or electricity. A database conforming to the Data Model can contain a local copy of all current participant-specific data recorded in the main database. The Data Model includes database tables, indexes, and primary keys., for further information, see Last modified: 17 October 2023.

AEMO communicates changes to participants in release schedules and technical specification published on AEMO's website > Electricity or Gas IT systems > Technical Specification Portal

Data Subscription A web application in the Markets Portal used to subscribe to Data Interchange files and to obtain the latest MMS Data Model. These files are typically csv files containing public data and participant’s private data. AEMO recommends participant use of the Data Interchange suite of products, supplied by AEMO, to automate receiving and storage of the files to their systems. AEMO provides working sample software for FTP access (Participant Batcher) to MarketNet and working sample software for Data Interchange. contains the Data Model files to populate your local DBMS and the non-Data Model files you can also subscribe to. It is a component of Data Interchange (see Figure 21) and the EMMS Markets Portal Web applications for registered participants only. Requires access to MarketNet..

You use it to:

  1. Obtain files to populate your local DBMS, conforming to the Data Model.
  2. Obtain Data Interchange software and Data Model scripts to build and maintain your own local DBMS.
    The Data Model is an industry standard database definition supplied and maintained by AEMO. It includes database tables, indexes and primary keys.
  3. Download Data Interchange related documentation.
  4. Easily identify the files you are currently subscribed to and those you are not.
  5. Subscribe to the files to populate your local DBMS.
  6. Unsubscribe from Legacy (redundant) files or files you no longer need.
  7. View a catalogue of all files, Legacy and current.
  8. For some file types, download sample files.

Figure 21 Standard Data Interchange environment