Overview

Initiation
Proposal

Revenue proposal

On 31 July 2025, Transgrid submitted a compliant non-contestable revenue proposal for the Enabling Central-West Orana (CWO) Renewable Energy Zone Network Infrastructure Project (CWO Enabling Project) for the regulatory period commencing 1 July 2026 and ending 30 June 2031 (2026–31). 

The proposal and supporting materials, as well as a call for submissions, are provided below.

Transgrid - Central West Orana Enabling Project 2026-31 - Revenue Proposal - 31 Jul 2025
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Transgrid - A.1 - Central West Orana Enabling Project 2026-31 - Revenue Proposal Overview - 24 Jul 2025
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Transgrid - A.2 - Central West Orana Enabling Project 2026-31 - Revenue Proposal - Document Register - 1 Aug 2025
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Confidentiality claims

Transgrid - A.6 - Central West Orana Enabling Project 2026-31 - Confidentiality Claims - 31 Jul 2025
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Regulatory information notice

Transgrid - A.4 - Central West Orana Enabling Project 2026-31 - Regulatory Information Notice Response - 29 Jul 2025
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Transgrid - A.24 - Central West Orana Enabling Project 2026-31 - Additional Regulatory Information Notice Response (Pre-period costs) – 29 Jul 2025
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Transgrid - A.3 - Central West Orana Enabling Project 2026-31 - Regulatory Information Notice Compliance Checklist - 24 Jul 2025
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Transgrid - A.5 - Central West Orana Enabling Project 2026-31 - Statutory Declaration - 24 Jul 2025
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Transgrid - A.7 - Central West Orana Enabling Project 2026-31 - Key Capex and Opex Assumptions Certification - 24 Jul 2025
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Models

Transgrid - M.1 - Central West Orana Enabling Project 2026-31 – Capex Forecast Model - 24 Jul 2025
XLSM (588.51KB) View details

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Transgrid - M.2. - Central West Orana Enabling Project 2026-31 – Labour and Overhead Costs Model - 24 Jul 2025
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Transgrid - M.3 - Central West Orana Enabling Project 2026-31 – Opex Forecast Model - 24 Jul 2025
XLSM (390.43KB) View details

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Transgrid - M.4 - Central West Orana Enabling Project 2026-31 – Direct Non-Labour Model - 24 Jul 2025
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Transgrid - M.5 - Central West Orana Enabling Project 2026-31 – Rate of Return Model - 24 Jul 2025
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Transgrid - M.6 - Central West Orana Enabling Project 2026-31 – Post Tax Revenue Model (PTRM) (unadjusted) - 24 Jul 2025
XLSM (2MB) View details

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Transgrid - M.7 - Central West Orana Enabling Project 2026-31 – Post Tax Revenue Model (PTRM) (adjusted) - 24 Jul 2025
XLSM (2MB) View details

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Transgrid - M.8 - Central West Orana Enabling Project 2026-31 – Financeability Model - 24 Jul 2025
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Supporting models - Financeability

Transgrid - M.9 - Central West Orana Enabling Project 2026-31 – VNI West Stage 1 2018-23 RFM - 31 Jul 2025
XLSM (2.86MB) View details

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Transgrid - M.10 - Central West Orana Enabling Project 2026-31 – VNI West Stage 1 CPA Depreciation- 31 Jul 2025
XLSM (3.84MB) View details

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Transgrid - M.11 - Central West Orana Enabling Project 2026-31 – PTRM Humelink S2 2025-26 RoD - 31 Jul 2025
XLSM (2.03MB) View details

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Transgrid - M.12 - Central West Orana Enabling Project 2026-31 – 2023-28 CESS HL S1P1 - 31 Jul 2025
XLSX (555.88KB) View details

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Transgrid - M.13 - Central West Orana Enabling Project 2026-31 – 2023-28 CESS HL S1P1 (with Actuals) - 31 Jul 2025
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Transgrid - M.14 - Central West Orana Enabling Project 2026-31 – 2018-23 PTRM Humelink - 31 Jul 2025
XLSM (1.71MB) View details

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Transgrid - M.15 - Central West Orana Enabling Project 2026-31 – 2024-29 WSB non-contestable PTRM - 31 Jul 2025
XLSM (1.92MB) View details

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Transgrid - M.16 - Central West Orana Enabling Project 2026-31 – 2021-22 Economic Benchmarking - 31 Jul 2025
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Transgrid - M.17 - Central West Orana Enabling Project 2026-31 – 2022-23 Economic Benchmarking - 31 Jul 2025
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Transgrid - M.18 - Central West Orana Enabling Project 2026-31 – 2023-24 Economic Benchmarking - 31 Jul 2025
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Transgrid - M.19 - Central West Orana Enabling Project 2026-31 – 2021-22 Regulatory Accounts - 31 Jul 2025
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Transgrid - M.20 - Central West Orana Enabling Project 2026-31 – 2022-23 Regulatory Accounts - 31 Jul 2025
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Transgrid - M.21 - Central West Orana Enabling Project 2026-31 – 2023-24 Regulatory Accounts - 31 Jul 2025
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Transgrid - M.22 - Central West Orana Enabling Project 2026-31 – 2023-28 Depreciation Tracking Module - 31 Jul 2025
XLSM (5.63MB) View details

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Transgrid - M.23 - Central West Orana Enabling Project 2026-31 – 2023-28 RFM - 31 Jul 2025
XLSM (2.87MB) View details

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Transgrid - M.24 - Central West Orana Enabling Project 2026-31 – 2028-33 PTRM- 31 Jul 2025
XLSM (2.05MB) View details

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Transgrid - M.25 - Central West Orana Enabling Project 2026-31 – 2028-33 CESS Model - 31 Jul 2025
XLSX (553.97KB) View details

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Transgrid - M.26 - Central West Orana Enabling Project 2026-31 – 2028-33 Opex Model - 31 Jul 2025
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Transgrid - M.27 - Central West Orana Enabling Project 2026-31 – 2028-33 EBSS Model - 31 Jul 2025
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Transgrid - M.28 - Central West Orana Enabling Project 2026-31 – 2024-29 WSB Depreciation Tracking Module - 31 Jul 2025
XLSM (3.6MB) View details

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Transgrid - M.29 - Central West Orana Enabling Project 2026-31 – 2024-29 WSB RFM- 31 Jul 2025
XLSM (2.68MB) View details

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Transgrid - M.30 - Central West Orana Enabling Project 2026-31 – 2029-34 WSB non-contestable PTRM - 31 Jul 2025
XLSM (1.94MB) View details

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Transgrid - M.31 - Central West Orana Enabling Project 2026-31 – 2029-34 WSB CESS Model - 31 Jul 2025
XLSX (553.2KB) View details

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Transgrid - M.32 - Central West Orana Enabling Project 2026-31 – Inflation Data - 31 Jul 2025
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Supporting information - Attachements

Transgrid - A.8 - Central West Orana Enabling Project 2026-31 - Direct Capex Forecasting Methodology - 29 Jul 2025
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Transgrid - A.9 - Central West Orana Enabling Project 2026-31 - Labour and Indirect Capex Forecasting Methodology - 24 Jul 2025
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Transgrid - A.10 - Central West Orana Enabling Project 2026-31 - Other Construction Costs Forecasting Methodology - 24 Jul 2025
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Transgrid - A.11 - Central West Orana Enabling Project 2026-31 - Opex Forecasting Methodology - 24 Jul 2025
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Transgrid - A.12 - Central West Orana Enabling Project 2026-31 - RfT Evaluation Plan - 28 Jul 2025
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Transgrid - A.13 - Central West Orana Enabling Project 2026-31 - Deliverability Plan - 24 Jul 2025
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Transgrid - A.14 - Central West Orana Enabling Project 2026-31 - Community and Stakeholder Engagement Plan - 24 Jul 2025
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Transgrid - GHD - A.15 - Central West Orana Enabling Project 2026-31 - Independent Verification and Assessment - 28 Jul 2025
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Transgrid - E3 - A.16 - Central West Orana Enabling Project 2026-31 - Independent Verification and Assessment - 24 Jul 2025
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Transgrid - Lockton - A.17 - Central West Orana Enabling Project 2026-31 - Insurance Report - 24 Jul 2025
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Transgrid - A.18 - Central West Orana Enabling Project 2026-31 - Expenditure Capitalisation Standard - 28 Jul 2025
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Transgrid - A.19 - Central West Orana Enabling Project 2026-31 - Cost Allocation Methodology - 24 Jul 2025
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Transgrid - A.20 - Central West Orana Enabling Project 2026-31 - Nominated Averaging Period - 24 Jul 2025
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Transgrid - PwC - A.21 - Central West Orana Enabling Project 2026-31 - Audit Report - 24 Jul 2025
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Transgrid - A.22 - Central West Orana Enabling Project 2026-31 - Project Deed - 28 Jul 2025
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Transgrid - GHD - A.23 - Central West Orana Enabling Project 2026-31 - Biodiversity Cost Estimate Report - 29 Jul 2025
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Transgrid - CEFC - A.25 - Central West Orana Enabling Project 2026-31 - Financeability Schedule - 24 Jul 2025
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Transgrid - KWM - A.26 - Central West Orana Enabling Project 2026-31 - Amending Deed and Umbrella Deed - 24 Jul 2025
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Transgrid - CEFC - A.27 Central West Orana Enabling Project 2026-31 - Adjustment Letter February - 24 Jul 2025
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Transgrid - CEFC - A.28 Central West Orana Enabling Project 2026-31 - Adjustment Letter June - 24 Jul 2025
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Transgrid - A.29 - Central West Orana Enabling Project 2026-31 - Amendment Letter – Umbrella Deed - 24 Jul 2025
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Transgrid - KWM - A.30 - Central West Orana Enabling Project 2026-31 - CEFC Terms Agreement - 24 Jul 2025
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Transgrid - KWM - A.31 - Central West Orana Enabling Project 2026-31 - CEFC Senior Secured Facility - 24 Jul 2025
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Transgrid - KWM - A.32 - Central West Orana Enabling Project 2026-31 - Note Trust Deed - 24 Jul 2025
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Transgrid - A.33 - Central West Orana Enabling Project 2026-31 - Pricing Supplement - 24 Jul 2025
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Transgrid - KWM - A.34 - Central West Orana Enabling Project 2026-31 - Concessional Finance Agreement - 24 Jul 2025
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Submissions

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Stakeholders were invited to make submissions on Transgrid’s 2026–31 non-contestable revenue proposal for the CWO Enabling Project by 26 August 2025.

CCP35 - Submission - Enabling Central-West Orana RNIP - 2026-31 Revenue Proposal - August 2025
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EUAA - Submission - Enabling Central-West Orana RNIP - 2026-31 Revenue Proposal - August 2025
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Gavin Dufty and Louise Benjamin - Submission - Enabling Central-West Orana RNIP - 2026-31 Revenue Proposal - August 2025
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Save Our Surroundings Riverina - Submission - Enabling Central-West Orana RNIP - 2026-31 Revenue Proposal - August 2025
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