Nautilus Interconnector Briefing Pack July 2019 Introduction Connecting for a cleaner future Nautilus Interconnector is a proposed second Interconnector between Great Interconnectors are making energy more secure, affordable and sustainable Britain and Belgium, including cabling works and a converter station situated in for consumers. East Suffolk. These projects have helped to lower electricity prices, increase the security of supply and stabilise energy in the Great Britain transmission network. When built, it will create a new 1.4 gigawatts (GW) high voltage direct current (HVDC) electricity link between the transmission systems of Great Britain and Belgium. Interconnectors are the perfect tool to help decarbonise our energy system. So far this year it is estimated that almost 65% of electricity coming into Britain through National Grid’s Interconnectors comes from zero carbon sources. It is expected that This will carry enough electricity to supply around 1.4 million homes. this figure will reach 90% by 2030. Who we are They also help to strengthen security of supply, by providing access to a much larger and more diverse mix of generation. Proposals for Nautilus Interconnector (Nautilus) are being developed by National Grid Interconnector Holdings (NGIH) and joint venture partner Elia. NGIH is a wholly owned subsidiary of National Grid Group and is legally separate from National Grid Electricity Transmission Plc (NGET). Elia is Belgium’s transmission system operator, operating the high voltage electricity network in Belgium1. It also Reducing our reliance on energy from Providing access to affordable energy is a key player in the energy market and the interconnected electricity system. fossil fuels for consumers NGET is responsible for ensuring electricity is transported safely and efficiently from where it is produced; reaching homes The transition to a low-carbon energy system is necessary to Interconnectors make the market more economically and businesses safely, reliably and efficiently. National Grid is also the Systems Operator. The Electricity Systems Operator avoid the catastrophic effects of climate change. efficient, by ensuring everyone has access to the lowest (ESO) now operates as a separate company within National Grid effective from 1 April 2019. It is responsible for making sure priced electricity available. supply and demand of electricity is balanced in real time across Great Britain. The UK’s climate change ambitions are among the highest Y in Europe. To achieve these goals, the UK needs to improve Nautilus will provide access to 1.4 GW of electricity so that A cross-border electricity Interconnections so that reliable, when the market is tight in the UK, but there is surplus wind National GridGrid sustainable energy can be imported to the British energy or sun in Belgium, it is possible to import power from these W network at times when UK renewable energy generation is less expensive generation resources. Interconnector portfolio Holdings’ portfolio R limited. Interconnectors are the perfect tool to help decarbonise our O As more Interconnectors help to bring down wholesale energy system. N Connecting the UK with Europe’s electricity systems will prices, consumers will benefit from lower bills. allow the UK to boost its security of electricity supply and to NSL Operational integrate more renewables into energy markets. Nautilus will provide access to more affordable energy for VIKING LINK Under construction British consumers. Under development Nautilus will help to increase efficiency across Europe and reduce reliance upon oil and gas imports by providing 1.4 Project: Go-live date: GW of flexible capacity between the British and Belgian K IFA 1986 R networks. BritNed 2011 A M Nemo 2019 N E IFA2 2020 T D H NSL 2021 E Keeping the lights on in low-carbon Viking Link 2023 U Britain Nautilus 2028 N I T Renewable sources of generation are crucial to helping the UK I E R D E achieve its legally binding climate change targets, but they also LA K N I provide challenges for managing the complexity of the future D N BRITNED G S electricity system. D D NEMO O N M A NAUTILUS L This, along with other Interconnectors will give UK system R IFA E operators the critical tools they need to balance rapid changes H T E in supply and demand – helping to smooth hourly variations in N production from wind and solar farms in the UK. M BE I U L G IFA2 Nautilus will increase security of supply by ensuring energy flows between Britain and Belgium from where it is being FRANCE generated in large quantities to where it is needed most. 1 Elia System Operator is listed on Euronext Brussels and is part of the BEL Mid-index. Its core shareholder is Publi-T. Elia System Operator has been listed on the regulated market of Euronext Brussels, since June 2005. 2 Nautilus Interconnector Nautilus Interconnector 3 Nautilus Interconnector Key benefits 640000 645000 650000 National Grid Interconnector Holdings is proposing to develop Nautilus, a second KEY Interconnector between Belgium and Great Britain, to provide a 1.4 GW HVDC Existing 400kV Overhead Line Potential Options electricity link between the two countries. A Landfall Options Indicative Cable Route Corridor Options 1 Converter Station Options 640000 645000 Electricity provided by Nautilus will be transported 650000 00 KEY 00 under the North Sea via underground subsea 650 650 2 Existing 400kV Overhead Line 8 Initial Site Appraisal 2 cables which will be buried onshore at a point Potential Options known as ‘landfall’ before connecting into an A Landfall Options onshore converter station and the national grid. Indicative Cable Route Corridor Options Enough power for Potential high level cable route options and various 1 Converter Station Options 7 00 landfalls along the East Suffolk Coast are currently 00 1.4 million homes 650 650 2 8 being assessed for Nautilus. 2 In order to connect Nautilus to the national grid, 7 discussions have been ongoing with National Grid Electricity Transmission (NGET) and the System 1 Operator. From this, NGET have provided a A Connection Agreement to use a new 400 kilovolts 2 (kV) substation provisionally referred to as “Leiston 400kV substation”. This is the same substation 3 1 that Scottish Power Renewables (SPR) offshore B windfarms East Anglia 1N and 2 are proposed to A 4ZX be linked to. NGIH, SPR and NGET are currently C 2 5 4ZW 4 working on the premise that all projects will be 5A connecting to the same substation – “Leiston 3 B D 400kV substation”. 6 1.4 gigawatts (GW) 4ZX C of secure, sustainable energy for 5 4ZW 4 Nautilus is currently at a very early stage of its 00 00 British consumers 5A development. Should consent be granted, a Final 600 600 D 2 2 CONFIDENTIAL Investment Decision is planned for 2024. Following 6 this, construction will commence, and the project DRAFT Reproduced by permission of Ordnance Survey on behalf of Her Majesty's could be operational by 2028. Stationery Office. Contains OS data © Crown Copyright and database right 2017. All rights reserved. Reproduced from Ordnance Survey digital map data © Crown copyright 2017. 00 00 All rights reserved. Licence number 0100031673 600 600 2 2 CONFIDENTIAL AUpdate to indicative cable search areaREJB03/07/2018 DRAFT RevDescription DrawnApproved Date Reproduced by permission of Ordnance Survey on behalf of Her Majesty's Stationery Office. Design Contains OS data © Crown Copyright and database right 2017. All rights reserved. Reproduced from Ordnance Survey digital map data © Crown copyright 2017. All rights reserved. Licence number 0100031673 The design for the converter station has not yet been AUpdate to indicative cable search areaREJB03/07/2018 developed. A typical operational footprint for a converter Genesis Centre, Birchwood Science Park, Warrington WA3 7BH RevDescription DrawnApproved Date station covers an area of five hectares (12 acres) with a Te l 01925 844004 e-mail [email protected] www.tep.uk.com maximum height of 24 metres. The exact size and height Project Nautilus Feasibility Study More Interconnectors help will depend upon the specific proposals for mitigation and Title the transition to a Genesis Centre, Birchwood Science Park, Warrington WA3 7BH construction. Potential Options Te l 01925 844004 e-mail [email protected] www.tep.uk.com Note: Project This map contains data from the following sources: Figure No. Drawing Number - National Grid zero carbon future Nautilus Feasibility Study The business is constantly challenging its supply chain to Figure A G6660.019A Kilometres Title bring down the size of converters. The final design of the Drawn CheckedApproved ScaleDate 0120.5 Potential Options converter station will be developed through a thorough RE JS JB 1:38,500 @ A3 24/06/2019 640000 645000 650000 Note: This map contains data from the following sources: Figure No. Drawing Number consultation process with stakeholders and the local - National Grid Figure A G6660.019A Kilometres community, as well as through collaboration with the Drawn CheckedApproved ScaleDate 0120.5 RE JS JB 1:38,500 @ A3 24/06/2019 supply chain. 640000 645000 650000 4 Nautilus Interconnector Nautilus Interconnector 55 The development process Environmental Impact For the purposes of the development process, Nautilus has been classified as Assessment process a Nationally Significant Infrastructure Project (NSIP) in the UK and a Project of Common Interest (PCI) in Europe. In parallel to the public consultation we will be undertaking extensive environmental surveys and studies and consulting with a range of statutory stakeholders. NSIP classification Confirmation has been received from the Secretary of State for Business, Energy and Industrial Strategy (BEIS) that Nautilus will be treated as an NSIP What is a Project of Scoping Report Indicative Timeline* and as development requiring a Development Consent Order (DCO). This Common Interest (PCI)? A Scoping Report will be submitted to the means that the final decision-maker for the project will be the Secretary of Planning Inspectorate.