A Guide to the Role of the Metering Coordinator

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In the complex landscape of the electricity market, the role of the Metering Coordinator (MC) is crucial for ensuring the accurate measurement and efficient coordination of metering services. With the National Electricity Rules (NER) as the guiding framework, AEMO has published a guide to the role of a metering coordinator and this article serves as a summary of that role drawing on the guide.

Understanding the Purpose and Scope:

The Guide to the Role of the Metering Coordinator is specifically designed to meet the requirements of clause 7.3.1(c) of the NER. It serves as an authoritative resource to clarify the roles and responsibilities of MCs and provides a clear roadmap for authorized procedures under the NER. It is important to note that the NER and the National Electricity Law take precedence over the AEMO guide in case of any inconsistencies.

Defining Key Terms and Interpretation:

To facilitate effective communication and implementation, the Retail Electricity Market Procedures – Glossary and Framework is incorporated into the AEMO guide. MCs must familiarize themselves with the definitions and interpretations provided, ensuring accurate interpretation and execution of their responsibilities.

Exploring Related Documents:

The AEMO guide references an array of related documents that provide additional insights and guidance. MCs should consult these documents for a comprehensive understanding of specific procedures and requirements. Relevant documents include the Retail Electricity Market Procedures, Application for Registration as a Metering Coordinator, Qualification Procedure (MP, MDP & ENM), Accreditation Checklists, Accredited Metering Data Providers, Accredited Metering Providers, Metrology Procedures, Service Level Procedures, Exemption Guidelines, and more.

Unraveling the MC Role:

The AEMO guide provides clarity on who qualifies as an MC, the registration process, and the appointment procedures. MCs are responsible for the coordination and provision of metering services, ensuring accurate data collection, processing, and delivery. They play a critical role in appointing Metering Providers (MPs) and Metering Data Providers (MDPs) to ensure reliable metering operations.

Key Responsibilities in Focus:

MCs shoulder several responsibilities to ensure the smooth functioning of metering installations. This includes managing joint metering installations, small customer metering installations, check metering installations, network devices, meter churn, and addressing metering installation malfunctions. Additionally, MCs must conduct regular inspections, testing, and audits to maintain accuracy and security.

Managing Metering Data:

Managing metering data is a vital responsibility of MCs. They are entrusted with the collection, processing, and delivery of data and must address data inconsistencies promptly. Furthermore, MCs should have robust mechanisms in place to handle changes to data and ensure data integrity and security.

Retailer of Last Resort (ROLR) Events:

In the event of a Retailer of Last Resort (ROLR) scenario, MCs may be required to provide support and coordination to ensure a seamless transition of metering services to the new retailer. They play a critical role in maintaining continuity and minimizing disruptions during these events.

Emphasizing Document Retention:

Proper document retention is essential for compliance and accountability. MCs must maintain accurate and up-to-date records of metering coordination activities, including registration documents, qualification procedures, accreditation checklists, and other relevant documents. This ensures transparency and facilitates regulatory audits when necessary.

Navigating Market Systems:

MCs should have a thorough understanding of the Market Settlement and Transfer Solutions (MSATS) and the Business-to-Business (B2B) procedures. These systems enable efficient market operations and data exchange among market participants. The AEMO guide provides references to specific documents and guides related to MSATS and the B2B e-Hub for comprehensive knowledge.

Ensuring Compliance:

Adherence to the NER and other relevant rules and procedures is paramount for MCs. Compliance ensures the integrity of metering operations and fosters trust among market participants. MCs must follow prescribed procedures, meet regulatory requirements, and maintain proper documentation to demonstrate compliance.

Default and De-registration Considerations:

The AEMO guide briefly addresses the procedures and considerations related to default events and de-registration of MCs. MCs need to be aware of the applicable rules and procedures to facilitate a smooth transition and minimize disruptions during such circumstances.


The Guide to the Role of the Metering Coordinator serves as a comprehensive resource for MCs operating under the NER. By fulfilling their responsibilities diligently and following the guidelines outlined in the AEMO guide, MCs contribute to the accurate measurement of electricity consumption, the integrity of metering data, and the efficient operation of the electricity market. The role of the MC is pivotal in ensuring a reliable and secure electricity market, and the AEMO guide empowers MCs to execute their duties effectively.

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