Second Round of Public Consultation

The ISO is seeking further feedback on revision 1.1 of the Guideline for Access and Connection to the NWIS.

Following the first consultation round, the ISO amended the Guideline to include:

  • minor improvements to consistency and readability;
  • a new Chapter 6, Study Philosophy and Guiding Principles; and
  • a new Chapter 8, CPC Guidelines.

The ISO has published the first-round stakeholder submissions on its website and will respond to each stakeholder separately.

The Guideline provides a practical overview of the access and connection framework for the North-West Interconnected System (NWIS). It is not a regulatory requirement under the Rules, so no formal decisions are required.

The indicative consultation process timeline is as follows*:

EventDate
First round public consultation period16th February – 16 March 2026 – Closed
First round submissions published7 August 2026
Second round public consultation period7 August – 7 September 2026
Second round submission and final Guideline publishedOctober 2026
*The final process will depend on number of submissions received and extent of issues raised

Submissions

Pilbara ISOCo is inviting stakeholders to provide feedback before 7th September 2026

Submissions received may be published on this website. If a submission contains confidential information, you should notify the Pilbara ISOCo of this when making your submission. The submission must clearly identify the information that is the subject of the claim for confidentiality, and you must also supply a non-confidential version of the submission.

Submissions must be received by the deadline. Please provide submissions electronically via our online form.

SUBMIT ONLINE

Documents related to this proposal

Second-round submission period

Guideline for Access and Connection to the NWIS v1.1

First-round submission period

Guideline for Access and Connection to the NWIS v1.0

APA

Horizon Power

Woodside