Carbon Dioxide Procedures – SSC Minor Consultation

Consultation process

Key contact

Email: [email protected]

Matters under consultation

AEMO is implementing the Shortening the Settlement Cycle (SSC) reform following the Australian Energy Market Commission’s final determination, made on 12 December 2024. The change was made in response to GloBird Energy’s rule change request to shorten the settlement cycle.

The final rule shortens the National Electricity Market (NEM) settlement cycle to nine business days following the end of a billing period and introduces a new revision 20 business days following the end of the billing period.

The final rule will commence at the start of billing week 33 on 9 August 2026.

The Carbon Dioxide Equivalent Intensity Index Procedures (Procedures) are made under clause 3.13.14(a) of the National Electricity Rules (NER) for the purpose of calculating the average greenhouse gas emissions associated with electricity generation across the NEM, and is a relevant procedure for the purposes of NER 11.179.

AEMO is consulting on minor amendments to the Procedures in accordance with the minor rules consultation procedure in NER 8.9.4.

Stakeholders are invited to submit written responses to the minor amendments proposal and draft procedures via email to [email protected] by 5pm AEST on Tuesday 30 June 2026. Please note that submissions will be published, other than confidential material, as per AEMO’s Consultation submission guidelines.

Scope

The focus of this consultation is proposed amendments to the Carbon Dioxide Equivalent Intensity Index Procedures to:

• Implement the National Electricity Amendment (Shortening the settlement cycle) Rule 2024 No. 22 (SSC Rule) by reflecting changes to terms and concepts in the National Electricity Rules (NER) under the SSC Rule.