Shoalhaven Hydro Expansion Project Origin Energy State Significant Infrastructure Scoping Report IA193700-0100-EN-RPT-003 | 03 8 April 2019 S tate S ignific ant I nfr astr uctur e S copi ng R epo rt Origin E n ergy State Significant Infrastructure Scoping Report Shoalhaven Hydro Expansion Project Project No: IA193700 Document Title: State Significant Infrastructure Scoping Report Document No.: IA193700-0100-EN-RPT-003 Revision: 03 Date: 8 April 2019 Client Name: Origin Energy Project Manager: Mike Luger Author: Thomas Muddle & Jorja Vernon File Name: https://jacobsengineering.sharepoint.com/sites/Shoalhaven-ECI/CLIENT SHARED DOCUMENTS/c. Working Drafts for Origin review/Environmental approvals/IA193700_Origin_Shoalhaven Pumped Hydro_Scoping Report_Rev02.docx Jacobs Group (Australia) Pty Limited ABN 37 001 024 095 710 Hunter Street Newcastle West NSW 2302 Australia PO Box 2147 Dangar NSW 2309 Australia T +61 2 4979 2600 F +61 2 4979 2666 www.jacobs.com © Copyright 2019 Jacobs Group (Australia) Pty Limited. The concepts and information contained in this document are the property of Jacobs. Use or copying of this document in whole or in part without the written permission of Jacobs constitutes an infringement of copyright. Limitation: This document has been prepared on behalf of, and for the exclusive use of Jacobs’ client, and is subject to, and issued in accordance with, the provisions of the contract between Jacobs and the client. Jacobs accepts no liability or responsibility whatsoever for, or in respect of, any use of, or reliance upon, this document by any third party. Document history and status Revision Date Description By Review Approved 00 20 November First draft for client review T. Muddle & J. Vernon M. Luger 2018 01 8 February Draft for client review T. Muddle & J. Vernon M. Luger 2019 02 13 February Final for Issue to DPE T. Muddle & J. Vernon M. Luger M. Luger 2019 03 8 April 2019 Final addressing DPE comments T. Muddle & J. Vernon M. Luger M. Luger IA193700-0100-EN-RPT-003 i State Significant Infrastructure Scoping Report Contents 1. Introduction ..................................................................................................................................1 1.1 Background ....................................................................................................................................1 1.2 Project overview.............................................................................................................................3 1.3 Proponent ......................................................................................................................................5 1.4 Planning and Assessment Process ................................................................................................5 1.5 Purpose of Report ..........................................................................................................................5 2. Project context .............................................................................................................................6 2.1 Location .........................................................................................................................................6 2.2 Surrounding land use .....................................................................................................................6 2.2.1 The existing scheme ......................................................................................................................6 2.2.2 Morton National Park......................................................................................................................8 2.2.3 Bendeela Recreation Area .............................................................................................................8 2.2.4 Surrounding landholdings ...............................................................................................................8 2.3 Existing Environment......................................................................................................................8 2.3.1 Historic context ..............................................................................................................................8 3. Project Description .................................................................................................................... 10 3.1 Overview...................................................................................................................................... 10 3.2 Operations ................................................................................................................................... 10 3.3 Operational project components ................................................................................................... 12 3.3.1 Surface Pipeline ........................................................................................................................... 13 3.3.2 Surge tank ................................................................................................................................... 14 3.3.3 Vertical shaft and headrace tunnel ............................................................................................... 14 3.3.4 Powerhouse cavern ..................................................................................................................... 14 3.3.5 Tailrace ........................................................................................................................................ 15 3.3.6 Outlet/ Intake ............................................................................................................................... 15 3.3.7 Access tunnel............................................................................................................................... 15 3.3.8 Ancillary components ................................................................................................................... 15 3.4 Construction ................................................................................................................................. 15 3.4.1 Surface pipeline and surge tank ................................................................................................... 15 3.4.2 Tunnel construction ...................................................................................................................... 16 3.4.3 Cavern construction ..................................................................................................................... 16 3.4.4 Spoil management ....................................................................................................................... 16 3.4.5 Surface infrastructure ................................................................................................................... 17 3.4.6 Laydowns .................................................................................................................................... 17 3.4.7 Timing – hours and years ............................................................................................................. 17 3.4.8 Access and transport.................................................................................................................... 17 3.4.9 Workforce .................................................................................................................................... 17 4. Strategic justification ................................................................................................................. 19 4.1 Project Need ................................................................................................................................ 19 4.2 Commonwealth policy context ...................................................................................................... 20 IA193700-0100-EN-RPT-003 ii State Significant Infrastructure Scoping Report 4.3 State policy context ...................................................................................................................... 21 4.4 Regional Policy ............................................................................................................................ 21 4.5 Shoalhaven Hydro Expansion Project Opportunity ........................................................................ 21 4.6 Consideration of Options .............................................................................................................. 22 4.7 Design refinement ........................................................................................................................ 24 5. Statutory framework .................................................................................................................. 25 5.1 NSW Planning Framework ........................................................................................................... 25 5.1.1 Critical State Significant Infrastructure .......................................................................................... 25 5.1.2 Application of other parts of EP&A Act .......................................................................................... 26 5.1.3 Water NSW Act 2014 and Regulation 2013 .................................................................................. 27 5.1.4 National Parks and Wildlife Act 1974 ............................................................................................ 28 5.1.5 Heritage Act 1977 .......................................................................................................................