Document library

On this page you can find all the materials we have published on EGL 5, including for our Stage 2 consultation.

    2026 Stage 2 Consultation Preliminary Environmental Information Report (PEIR)

    In this section you can view our Preliminary environmental information report (PEIR) for our Stage 2 consultation. This considers the likely significant effects of our proposals on the environment. It also includes the measures we are proposing to mitigate these impacts. The PEIR has been split into several chapters, along with figures and appendices.

    You can also read a shorter Non-technical summary of the PEIR (PDFs below) as well as a Digital Non-technical summary of the PEIR which can be found here.

    Non-technical summary of the PEIR
    Non-technical summary of the PEIR - Figures
    Design Development Report
    PEIR Glossary
    Part 1, Chapter 1 Introduction
    Volume 1, Part 1, Chapter 1 Introduction
    Volume 2, Part 1, Appendix 1.A Scoping Opinion Responses
    Volume 3, Part 1, Chapter 1 Figures
    Part 1, Chapter 2 Regulatory and Policy Overview
    Volume 1, Part 1, Chapter 2 Regulatory and Policy Overview
    Volume 2, Part 1, Appendix 2.A Regulatory and Planning Context
    Volume 2, Part 1 Appendix 2.B Marine Plan Policy Assessment
    Volume 2, Part 1 Appendix 2.C Habitats Regulations Assessment (HRA) Stage 1 Screening Report
    Part 1, Chapter 3 Reasonable Alternatives Considered
    Volume 1, Part 1, Chapter 3 Reasonable Alternatives Considered
    Volume 2 Part 1, Appendix 3.A Marine Options Appraisal
    Volume 3, Part 1, Chapter 3 Figures
    Part 1, Chapter 4 Description of the Project
    Volume 1, Part 1, Chapter 4 Description of The Project
    Volume 2, Part 1 Appendix 4.A Electromagnetic Field (EMF) Study
    Volume 2, Part 1 Appendix 4.B EGL 5 Heat Calculations Technical Report
    Volume 3, Part 1, Chapter 4 Figures
    Part 1, Chapter 5 PEIR Approach and Methodology
    Volume 1, Part 1, Chapter 5 PEIR Approach and Methodology
    Volume 2, Part 1, Appendix 5.A Outline Register of Design Measures
    Volume 2, Part 1, Appendix 5.B Outline Code of Construction Practice
    Volume 2, Part 1, Appendix 5.C Outline Construction Environmental Management Plan
    Part 2, Chapter 6 Biodiversity
    Volume 1, Part 2, Chapter 6 Biodiversity
    Volume 2, Part 2, Appendix 6.A Biodiversity Scoping Opinion Responses
    Volume 2, Part 2, Appendix 6.B Biodiversity Desk Study Report
    Volume 3, Part 2, Chapter 6 Figures
    Part 2, Chapter 7 Cultural Heritage
    Volume 1, Part 2, Chapter 7 Cultural Heritage
    Volume 2, Part 2, Appendix 7.A Cultural Heritage Scoping Response
    Volume 2, Part 2, Appendix 7.B Cultural Heritage Baseline
    Volume 2, Part 2, Appendix 7.C Cultural Heritage Gazetteer
    Volume 2, Part 2, Appendix 7.D Cultural Heritage Non-significant impacts
    Volume 3, Part 2, Chapter 7 Figures
    Part 2, Chapter 8 Landscape and Visual Amenity
    Volume 1, Part 2, Chapter 8 Landscape and Visual Amenity
    Volume 2, Part 2, Appendix 8.A Landscape and Visual Methodology
    Volume 2, Part 2, Appendix 8.B Landscape Character Baseline
    Volume 2, Part 2, Appendix 8.C Preliminary Visual Baseline and Assessment
    Volume 3, Part 2, Chapter 8 Figures (and viewpoints) – pages 1 to 20
    Volume 3, Part 2, Chapter 8 Figures (and viewpoints) – pages 21 to 39
    Part 2, Chapter 9 Water Environment
    Volume 1, Part 2, Chapter 9 Water Environment
    Volume 2, Part 2, Appendix 9.A Water Framework Directive Assessment Stage 1 & 2
    Volume 2, Part 2, Appendix 9.B Preliminary Water Environment Design Principles
    Volume 2, Part 2, Appendix 9.C Preliminary Watercourse Crossing Schedule
    Volume 3, Part 2, Chapter 9 Figures
    Part 2, Chapter 10 Geology and Hydrogeology
    Volume 1, Part 2, Chapter 10 Geology and Hydrogeology
    Volume 2, Part 2, Appendix 10.A EGL 5 Groundsure Report
    Volume 2, Part 2, Appendix 10.B EGL 5 Potential Contaminative Sources Walkover Photo Log
    Volume 2, Part 2, Appendix 10.C Scoping Opinion Response Summary
    Volume 3, Part 2, Chapter 10 Figures
    Part 2, Chapter 11 Agriculture and Soils
    Volume 1, Part 2, Chapter 11 Agriculture and Soils
    Volume 3, Part 2, Chapter 11 Figures
    Part 2, Chapter 12 Traffic and Transport
    Volume 1, Part 2, Chapter 12 Traffic and Transport
    Volume 2, Part 2, Appendix 12.A Traffic and Transport - Scoping Opinion Response
    Volume 2, Part 2, Appendix 12.B Traffic and Transport - Baseline Conditions
    Volume 2, Part 2, Appendix 12.C Traffic and Transport - Preliminary Construction Phase Traffic Flows
    Volume 2, Part 2, Appendix 12.D Traffic and Transport - Preliminary Construction Phase Effects
    Volume 3, Part 2, Chapter 12 Figures
    Part 2, Chapter 13 Noise and Vibration
    Volume 1, Part 2, Chapter 13 Noise and Vibration
    Volume 2, Part 2, Appendix 13.A Construction Plant Assumptions
    Volume 3, Part 2, Chapter 13 Figures
    Part 2, Chapter 14 Air Quality
    Volume 1, Part 2, Chapter 14 Air Quality
    Volume 2, Part 2, Appendix 14.A Construction Dust Assessment and Methodology
    Volume 3, Part 2, Chapter 14 Figures
    Part 2, Chapter 15 Socio-economics, Recreation and Tourism
    Volume 1, Part 2, Chapter 15 Socio-economics, Recreation and Tourism
    Volume 2, Part 2, Appendix 15.A Socio-economics, Recreation and Tourism Receptors
    Volume 3, Part 2, Chapter 15 Figures
    Part 2, Chapter 16 Health and Wellbeing
    Volume 1, Part 2, Chapter 16 Health and Wellbeing
    Volume 2, Part 2, Appendix 16.A Health and Wellbeing Baseline Data
    Volume 3, Part 2, Chapter 16 Figures
    Part 3, Chapter 17 Coastal and Marine Physical Processes
    Volume 1, Part 3, Chapter 17 Coastal and Marine Physical Processes
    Volume 2, Part 3, Appendix 17.A Fine Sediment Modelling Spreadsheet
    Volume 2, Part 3, Appendix 17.B Wave Modelling
    Volume 2, Part 3, Appendix 17.C Water Framework Directive (WFD) Offshore Assessment
    Volume 3, Part 3, Chapter 17 Figures
    Part 3, Chapter 18 Intertidal and Subtidal Benthic Ecology
    Volume 1, Part 3, Chapter 18 Intertidal and Subtidal Benthic Ecology
    Volume 2, Part 3, Appendix 18.A Intertidal Environmental Survey Report
    Volume 2, Part 3, Appendix 18.B Environmental Baseline Survey Report
    Volume 2, Part 3, Appendix 18.C Project Marine Conservation Zone (MCZ) Assessment Screening
    Volume 2, Part 3, Appendix 18.D Marine Conservation Zone Stage 1 Assessment
    Volume 2, Part 3, Appendix 18.E In-principal MEEB Strategy
    Volume 3, Part 3, Chapter 18 Figures
    Part 3, Chapter 19 Fish and Shellfish
    Volume 1, Part 3, Chapter 19 Fish and Shellfish
    Volume 2, Part 3, Appendix 19.A DATRAS Survey Results
    Volume 3, Part 3, Chapter 19 Figures
    Part 3, Chapter 20 Intertidal and Offshore Ornithology
    Volume 1, Part 3, Chapter 20 Intertidal and Offshore Ornithology
    Volume 2, Part 3, Appendix 20.A Supporting Information: Intertidal and Offshore Ornithology
    Volume 3, Part 3, Chapter 20 Figures
    Part 3, Chapter 21 Marine Mammals and Marine Reptiles
    Volume 1, Part 3, Chapter 21 Marine Mammals and Marine Reptiles
    Volume 2, Part 3, Appendix 21.A Underwater Noise Assessment
    Volume 3, Part 3, Chapter 21 Figures
    Part 3, Chapter 22 Shipping and Navigation
    Volume 1, Part 3, Chapter 22 Shipping and Navigation
    Volume 2, Part 3, Appendix 22.A Navigation Risk Assessment
    Volume 3, Part 3, Chapter 22 Figures
    Part 3, Chapter 23 Commercial Fisheries
    Volume 1, Part 3, Chapter 23 Commercial Fisheries
    Volume 2, Part 3, Appendix 23.A Supporting Commercial Fisheries Information
    Volume 2, Part 3, Appendix 23.B Fisheries Liaison and Coexistence Plan (FLCP)
    Volume 3, Part 3, Chapter 23 Figures
    Part 3, Chapter 24 Other Marine Users
    Volume 1, Part 3, Chapter 24 Other Marine Users
    Volume 3, Part 3, Chapter 24 Figures
    Part 3, Chapter 25 Marine Archaeology
    Volume 1, Part 3, Chapter 25 Marine Archaeology
    Volume 2, Part 3, Appendix 25.A Offshore Written Scheme of Investigation and Protocol for Archaeological Discoveries
    Volume 2, Part 3, Appendix 25.B Gazetteer of UKHO and Heritage Records
    Volume 2, Part 3, Appendix 25.C Gazetteer of Geophysical Anomalies
    Volume 2, Part 3, Appendix 25.D Gazetteer of Sea Level Index Points
    Volume 3, Part 3, Chapter 25 Figures
    Part 4, Chapter 26 Greenhouse Gases
    Volume 1, Part 4, Chapter 26 Greenhouse Gases
    Part 4, Chapter 27 Cumulative Effects
    Volume 1, Part 4, Chapter 27 Cumulative Effects
    Volume 2, Part 4, Appendix 27.A Long List of other Developments
    Volume 3, Part 4, Chapter 27 Figures

    2025 Stage 1 consultation webinars

    In this section you can watch the webinars we held during our stage 1 consultation. Please note, these webinars also share information on the separate EGL 3 and EGL 4 projects.

    Webinar 1 - EGL 5's offshore proposals - 23 May
    Webinar 2 - EGL 5's onshore proposals - 5 June

     

    2025 Stage 1 consultation videos 

    In this section you can watch animations that provide an indicative overview of how National Grid builds new infrastructure.