AEMO published its HLIA for the ISF Implementation … and seeking input on draft ‘Security Enablement Procedures’

Adding one more to the ‘Easter Reading List*’ was the AEMO, in High-Level Implementation Assessment for the implementation of the AEMC’s ISF Rule Determination from 28th March 2024.

* a season-specific variation of the ‘if I had more time here’s something I’d like to read in detail’ List.

Here’s the 28-page HLIA PDF document that the AEMO published on Thursday 17th April 2025 (i.e. two days ago):

… and note there is more information published by AEMO on the Implementation Sub-Site here.

An overview of the complexity

I’ve only had the briefest chance to skim today, but Figure 1 on p9/28 jumped out, in terms of illustrating the complexity of the implementation process, so I’ve included here for reference:

Remaining Key Dates

The AEMO writes (on p10/28) that:

‘The remaining ISF milestones relate to AEMO’s security contract enablement obligations:

• By 31 August 2025: Publication of the Full Security Enablement Procedure.

• On 2 December 2025: Commencement of full enablement obligations (operational).

The published SO_OP_3720 Security Enablement Procedure (Provisional) outlines minimum and recommended contracting requirements. The final, complete SO_OP_3720 Security Enablement Procedure, currently under consultation (see here*) , outlines AEMO’s methodology for service enablement. The system impacts outlined in Section 4 are largely related to operationalising AEMO’s full enablement obligations for December 2025. ‘

 * note that that linked page indicates that:

(a)  Last week (Monday 7th April 2025) the AEMO published both:

i.  This 42-page Consultation Paper for ‘Security Enablement Procedures’; and

ii.  These 28-pages of draft Security Enablement Procedures.

(b)   submissions are due by Thursday 8th May 2025.

… so will have to read more, when we get a chance.