January 2026

Audience

• Demand Response Service Providers (DRSPs)

• Market customers

• Integrated Resource Providers (IRPs)

Contents

Summary

AEMO Australian Energy Market Operator is enhancing the Portfolio Management System (PMS Portfolio Management System) to improve how National Metering Identifiers (NMIs) are managed during applications. Registered participants do not need to change their systems. This release is implemented on AEMO's side. The changes include:

• Optional automatic declassification of ineligible NMIs.

• Manual declassification from the interface with validation and capacity warnings.

• New declassification history view.

• Manual removal of invalid NMIs from an in-flight application.

• A new Sampling interval field for validation.

• Updated declaration text for Frequency Control Ancillary Services (FCAS) and Wholesale Demand Response (WDR) applications.