Access and Connection
The Pilbara ISO’s access and connection functions are outlined in subchapter 9.2 of the Rules and further described in the Access and Connection Procedure.
Throughout the access and connection process, the Pilbara ISO’s primary relationship is with the registered NSP. Further information on the access and connection processes of the two covered NSPs on the NWIS can be found at:
The registered NSP performs a central role, liaising with both the access seeker and the Pilbara ISO. The registered NSP is responsible for the connection standards whilst the Pilbara ISO is responsible for supervising these standards.
The Access and Connection Procedure outlines:
- Roles and responsibilities of the ISO
- Stages of connection
- Stages Overview Flowchart
- Stage 1 – Feasibility Assessment
- Stage 2 – Application Assessment
- Stage 3 – Connection Assessment
- Connection point compliance assessments
- Connection Point Compliance – Application Creation Process Flowchart
- Connection Point Compliance – Application Assessment Process Flowchart
- Time and cost of connection process
Access and Connection Guidelines
The purpose of this guideline is to outline the Pilbara Independent System Operator’s (ISO) expectations for Host NSPs in fulfilling their regulatory obligations in relation to New Connections.
This guideline also explains how the ISO performs its relevant functions in supervising, facilitating, and undertaking due diligence activities to support the ongoing security and reliability of the power system.
The key regulatory documents relevant to New Connections include:
- the Electricity Industry Act 2004 (WA);
- the Electricity Industry (Pilbara Networks) Regulations 2021;
- the Pilbara Networks Access Code (PNAC);
- the Pilbara Network Rules (PNR);
- the Harmonised Technical Rules (HTR);
- the Interim Power System Modelling Procedure (PSMP); and
- the Access and Connection Procedure (ACP).
ISO Access and Connection Guidelines
Templates
Feasibility Assessment Report Template
Request for Energisation Assessment – Part A Template
Exemption Notice to ISO Template
Commissioning Test Plan Template
Hold Point Test Results Summary Template
Commissioning Test Report Template
Preliminary Access Study – Steady State Report Template
Preliminary Access Study – SMIB Report Template
Preliminary Access Study – WAN Report Template
Preliminary Access Study – Releasable User Guide Template
Preliminary Access Study – Power Quality Study Report Template
R2 Model Validation Report Template
Technical Compliance Report Template
Nothing in this guideline overrides or supersedes any applicable regulatory instrument. To the extent of any inconsistency between this guideline and the relevant regulatory documents, the regulatory documents prevail.
This guideline may be updated from time to time, including in response to industry feedback. The ISO welcomes feedback from stakeholders at any time.
NWIS Power System Model
Registered NSPs are required to develop and maintain their network model in accordance with the Interim Power System Modelling Procedure. The Pilbara ISOCo is required to use the network models to develop and maintain the NWIS Full Power System Model, capable of supporting the Pilbara ISOCo performing its functions under the Pilbara Network Rules.
Subject to obtaining the necessary consents, the Pilbara ISOCo will provide the NWIS Power System Model to facilitate access and connection studies, see Guide to Confidentiality, Model Request Form and NWIS Power System Model User Guide.