Resources

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Last updated: 23 Mar 2023

2023 Annual Outage Planning Forum.pdf

2023 Annual Outage Planning Forum.pdf (PDF 6.54 MB)

Last updated: 27 May 2025

Standard Site Abbreviations.xlsx

Standard Site Abbreviations.xlsx (XLSX 278.42 KB)

Last updated: 28 Feb 2023

HLY 5 Outage Scenario - February 2023.pdf

HLY 5 Outage Scenario - February 2023.pdf (PDF 1.21 MB)

Last updated: 10 Oct 2023

Register of Granted Dispensations and Approved Equivalence Arrangements.xlsx

Register of Granted Dispensations and Approved Equivalence Arrangements.xlsx (XLSX 41.23 KB)

Last updated: 20 Sep 2022

Submission Summary - Grid Service Engagement Paper

Summary of submissions received from our customers and other stakeholders relating to the Grid Service Engagement Paper dated May 2022

RCP4 Submission Summary - Grid Service Engagement Paper (PDF 585.99 KB)

RCP4 Submission Summary - Grid Service Engagement Paper

Last updated: 06 Sep 2022

TPM Information Sheet Connection Charges July 2022

Information sheet on TPM Connection Charges

Information sheet on TPM Connection Charges (PDF 417.79 KB)

Last updated: 02 Sep 2022

2021 Asset Management Plan

A supporting document to our Integrated Transmission Plan, the Asset Management Plan explains how we undertake asset management.

A supporting document to our Integrated Transmission Plan, the Asset Management Plan explains how we undertake asset management. (PDF 8.53 MB)

2021 Asset Management Plan Cover

Last updated: 27 Jun 2025

Published planned loss of supply and n-security outage report.xlsx

Published planned loss of supply and n-security outage report.xlsx (XLSX 38.86 KB)

Last updated: 27 Sep 2023

Schedule - IR.pdf

Schedule - IR.pdf (PDF 182.29 KB)

Last updated: 25 Sep 2024

Schedule - BS.pdf

Schedule - BS.pdf (PDF 338.81 KB)