Register as a Market Ancillary Service Provider (MASP) in the NEM

This page outlines the requirements for registering as a Market Ancillary Service Provider (MASP) in the National Electricity Market (NEM).

A MASP delivers market ancillary services in accordance with AEMO’s market ancillary services specifications, by offering a customer’s load, or an aggregation of loads into FCAS markets.

A MASP need not be the customer’s retailer. In practice, this may mean that while a customer has a retail supply contract with a retailer, a customer may also have a separate contract with a MASP to provide ancillary services.”

It also provides information for participants who are already registered as a MASP about classifying additional load as an ancillary service load.

Registration documents

These are the documents needed for registration or to classify additional or aggregated ancillary service loads.

Supporting documents

Any document shown in this section is required in support of your application or to assist.

Recipient-created tax invoices (RCTI)

In response to the COVID-19 pandemic, AEMO has adopted digital and remote ways of working to protect our people and critical operations. During this time, applicants can sign and exchange electronically.

Short-term DER in FCAS arrangements

This guidance document seeks to expedite the participation of Distributed Energy Resources (DER) in Frequency Control Ancillary Services (FCAS) markets in the National Electricity Market (NEM) in the short term. It sets out AEMO’s approach to approving the classification of a load which has DER behind the connection point as an ancillary services load under the current National Electricity Rules (NER) and Market Ancillary Services Specifications (MASS).

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