A registered participant in an AEMO-operated market can apply to be deregistered from any registrable capacity. Relevant NEM participants can also apply to de-classify loads, generating units, or market network services.

Existing participants seeking to deregister must apply to AEMO to cease registration. The application should be on a formal letterhead, signed by a duly authorised company officer, and include:

• The participant’s full name and ABN.
• Relevant NEM participant ID(s).
• Markets and category(ies) from which the participant wishes to deregister.
• The business reason(s) why the participant considers it is (or will be) no longer required to be registered in the relevant capacity(ies) under the National Electricity Rules.
• A preferred future deregistration effective date (AEMO cannot guarantee this date, but will try to meet the timeframe provided).

Depending on circumstances, AEMO may require additional information to verify the reasons for deregistration and confirm that any ongoing liability in the market will be met.

To deregister as a market participant in the NEM, you should also complete the NEM Settlements Revisions Liability Deed. This deed is used when one entity wishes to take liability for the settlement revisions of another, for example in the event of an acquisition.

Upon deregistration, the status of the organisation is changed in the various system registers maintained by AEMO. Approximately six to nine months after the date of deregistration, when all revisions have been settled:

• Data sharing to and from the deregistered participant ID is removed.
• Access to AEMO’s market systems by the deregistered participant ID is revoked.
• Subsequently produced statements and reports are disabled.

When an organisation has ceased to be registered in any market and category(ies), it does not affect any prior obligation or liability of that organisation under the relevant market rules.

To re-register, the organisation must complete the registration process required for a new organisation.

For further information, please contact AEMO’s Information and Support Hub or call 1300 236 600.