EUAA Submission: AEMO Consultation On Automation Of Negative Residue Management For The Implementation Of Transmission Loops
Emily Wood | July 11, 2025
AEMO’s historical minimalist interpretation of the NER has led to some strange and avoidable issues in the past that result in more costs to consumers. This proposal is no different and we will propose more efficient approaches that will reduce costs for consumers.
Summary of our submission:
‘…We understand that AEMO currently limits negative IRSR by imposing dispatch constraints in NEMDE when the negative IRSR is forecast to reach $100,000 per “instance” of negative IRSR arising. In AEMO’s Automation of NRM, we understand the following:
- When negative IRSR is forecast (using a pred-dispatch (PD) estimate) to reach $100,000 the interconnector is “clamped” using dispatch constraints
- When IRSR is forecast (using PD) to result in a positive IRSR, the interconnector is “unclamped” by removing the dispatch constraints
- If negative IRSR continues, the $100,000 threshold is rest as it is a new “incidence”
We find that there are three problems with this current approach that will be exacerbated by the PEC loop….’
Please download the attached document to read our full submission.
