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Powerlink Queensland Revenue Proposal

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Powerlink Queensland Revenue Proposal 2023-27 POWERLINK QUEENSLAND REVENUE PROPOSAL Appendix 5.02 – PUBLIC 2020 Transmission Annual Planning Report © Copyright Powerlink Queensland 2021 Transmission Annual Planning Report 2020 Transmission Annual Planning Report Please direct Transmission Annual Planning Report (TAPR) enquiries to: Stewart Bell A/Executive General Manager Strategy and Business Development Division Powerlink Queensland Telephone: (07) 3860 2801 Email: [email protected] Disclaimer: While care is taken in the preparation of the information in this report, and it is provided in good faith, Powerlink Queensland accepts no responsibility or liability for any loss or damage that may be incurred by persons acting in reliance on this information or assumptions drawn from it. 2020 TRANSMISSION ANNUAL PLANNING REPORT Table of contents Executive summary __________________________________________________________________________________________________ 7 1. Introduction ________________________________________________________________________________________________ 15 1.1 Introduction ___________________________________________________________________________________________ 16 1.2 Context of the TAPR _________________________________________________________________________________ 16 1.3 Purpose of the TAPR _________________________________________________________________________________ 17 1.4 Role of Powerlink Queensland _______________________________________________________________________ 17 1.5 Meeting the challenges of a transitioning energy system ___________________________________________ 18 1.6 Overview of approach to asset management ______________________________________________________ 19 1.7 Overview of planning responsibilities and processes _______________________________________________ 19 1.7.1 Planning criteria and processes ______________________________________________________________ 19 1.7.2 Integrated planning of the shared network __________________________________________________20 1.7.3 Joint planning __________________________________________________________________________________22 1.7.4 Connections __________________________________________________________________________________23 1.7.5 Interconnectors _______________________________________________________________________________23 1.8 Powerlink’s asset planning criteria ___________________________________________________________________23 1.9 Powerlink’s reinvestment criteria ____________________________________________________________________24 1.10 Stakeholder engagement _____________________________________________________________________________25 1.10.1 Customer and stakeholder engagement ____________________________________________________25 1.10.2 Non‑network solutions ______________________________________________________________________27 1.10.3 Focus on continuous improvement _________________________________________________________28 2. Energy and demand projections ______________________________________________________________________ 29 2.1 Overview _____________________________________________________________________________________________30 2.2 Customer consultation _______________________________________________________________________________34 2.3 Demand forecast outlook ____________________________________________________________________________35 2.3.1 Changing load profiles ________________________________________________________________________36 2.3.2 Demand and energy terminology ___________________________________________________________37 2.3.3 Energy forecast _______________________________________________________________________________39 2.3.4 Summer maximum demand forecast ________________________________________________________ 41 2.3.5 Winter maximum demand forecast _________________________________________________________ 43 2.3.6 Summer minimum demand forecast ________________________________________________________45 2.3.7 Winter minimum demand forecast __________________________________________________________47 2.4 Zone forecasts ________________________________________________________________________________________49 2.5 Summer and winter minimum and maximum daily profiles ________________________________________56 2.6 Annual load duration curves _________________________________________________________________________58 3. Joint Planning _______________________________________________________________________________________________ 59 3.1 Introduction ___________________________________________________________________________________________60 3.2 Working groups and regular engagement ___________________________________________________________60 3.2.1 Regular joint planning meetings ______________________________________________________________ 61 3.3 AEMO ISP ____________________________________________________________________________________________ 61 3.4 AEMO National Planning – Fault Level Shortfall ____________________________________________________62 3.5 Power System Frequency Risk Review (PSFRR) ____________________________________________________62 3.6 Joint planning with TransGrid – Expanding the transmission transfer capacity between New South Wales and Queensland ________________________________________________________________63 3.7 Joint planning with Energex and Ergon Energy ______________________________________________________64 3.7.1 Matters requiring joint planning ______________________________________________________________64 3 Contents 4. Asset management overview __________________________________________________________________________ 65 4.1 Introduction ___________________________________________________________________________________________66 4.2 Overview of approach to asset management ______________________________________________________66 4.3 Asset Management Policy ____________________________________________________________________________67 4.4 Asset Management Strategy _________________________________________________________________________67 4.4.1 Asset life cycle ________________________________________________________________________________68 4.4.2 Asset management cycle _____________________________________________________________________68 4.5 Asset management methodologies __________________________________________________________________69 4.6 Flexible and integrated network investment planning ______________________________________________70 4.7 Asset management implementation _________________________________________________________________70 4.8 Further information __________________________________________________________________________________70 5. Future network development _________________________________________________________________________ 71 5.1 Introduction ___________________________________________________________________________________________72 5.2 ISP alignment __________________________________________________________________________________________73 5.3 Flexible and integrated approach to network development _______________________________________ 74 5.4 Forecast capital expenditure _________________________________________________________________________75 5.5 Forecast network limitations _________________________________________________________________________75 5.5.1 Summary of forecast network limitations within the next five years ______________________ 76 5.5.2 Summary of forecast network limitations beyond five years _______________________________ 76 5.6 Consultations _________________________________________________________________________________________ 76 5.6.1 Current consultations – proposed transmission investments ______________________________77 5.6.2 Future consultations – proposed transmission investments ________________________________79 5.6.3 Connection point proposals _________________________________________________________________80 5.7 Proposed network developments ___________________________________________________________________80 5.7.1 Far North zone _______________________________________________________________________________84 5.7.2 Ross zone _____________________________________________________________________________________92 5.7.3 North zone ___________________________________________________________________________________97 5.7.4 Central West zone _________________________________________________________________________ 100 5.7.5 Gladstone zone _____________________________________________________________________________ 105 5.7.6 Wide Bay zone _______________________________________________________________________________110 5.7.7 South West zone ___________________________________________________________________________ 115 5.7.8 Surat zone ____________________________________________________________________________________118 5.7.9 Bulli zone _____________________________________________________________________________________120 5.7.10 Moreton zone ________________________________________________________________________________121 5.7.11 Gold Coast zone ____________________________________________________________________________130 5.7.12 Supply demand balance _____________________________________________________________________135 5.7.13 Existing interconnectors ____________________________________________________________________135 5.7.14 Expanding NSW‑Queensland transmission transfer capacity _____________________________136 6. Network capability and performance ______________________________________________________________
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