Document library
You’ll find all of our publications, legal documents and key business reports here.
NGN & You
Corporate responsibility
RIIO-GD2 Business Plan (2021 - 2026)
Executive Summary
Business Plan
Customer Engagement Group Report
Customer Engagement Group Impacts Appendices 28
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- Business Plan Data Tables
- Business Plan Commentary
- NARMs Business Plan Data Tables
- NARMs Business Plan Commentary
- MRPS Data Table's (4.10)
- RIIO-2 Snapshot Tables
- NGN LiMo GD2 20191107 d4.1 (Ofgem)
- NGN LiMo GD2 20191107 d4.1 (NGN)
- NGN Domestic Customer Bill Calculation
- NGN's Business Plan Financial Parameters and Credit Rating Calculator
- NGN RIIO GD2 Business Plan - Irregular Submission Report
- CCG, 'You said, We did'
- NGN RIIO GD2 - Statement of Exclusions / Redactions
- A1 - NGN RIIO-2 Ofgem Guidance Checklist and Signposting
- A2 - NGN RIIO-2 Business Plan Assurance
- A3 - NGN RIIO-2 Stakeholder Engagement Strategy
- A4 - NGN RIIO-2 Stakeholder Engagement Insights
- A5 - NGN RIIO-2 Stakeholder Engagement Benchmarking
- A6 - NGN RIIO-2 Outputs
- A7 - NGN RIIO-2 Vulnerability Strategy
- A8 - NGN RIIO-2 Environmental Action Plan
- A9 - NGN RIIO-2 NTS Interactions
- A10 - NGN RIIO-2 Workforce Resilience Strategy
- A11 - NGN RIIO-2 IT and Cyber Security Plan
- A12 - NGN RIIO-2 Digitalisation Strategy
- A13 - NGN RIIO-2 Consumer Value Proposition
- A14 - NGN RIIO-2 Our Whole Systems Strategy
- A15 - NGN RIIO-2 Uncertainty and Risk
- A16 - NGN RIIO-2 Economic Outlook
- A17 - NGN RIIO-2 Long Term Development Statement
- A18 - NGN RIIO-2 Innovation Delivery Strategy
- A19 - NGN RIIO-2 Real Price Effects for Gas Networks
- A20 - NGN RIIO-2 Ongoing Efficiency for Gas Networks
- A21 - NGN RIIO-2 Regional factors
- A22 - NGN RIIO-2 Business Support Benchmarking
- A23 - NGN RIIO-2 Investment Decision Packs - Overview
- A24 - NGN RIIO-2 Cost Confidence Review
- A25 - NGN RIIO-2 Gas Holder Strategy
- A26 - NGN RIIO-2 Assessment of a Comfortable Investment Grade Credit Rating
- A27 - NGN RIIO-2 Review of NGN’s RIIO-2 Business Plan Financiability
- A28 - NGN RIIO-2 Review of NGN's Financial Analysis for RIIO-GD2
- A29 - NGN RIIO-2 Cost of Debt in RIIOGD2 - A report prepared for NGN
- A30 - NGN RIIO-2 Cost of Debt at RIIO-2 - A report for Gas Distribution Networks
- A31 - NGN RIIO-2 Outperformance Wedge
- A32 - NGN RIIO-2 The Cost of Equity for RIIO2 - Q4 2019 update
- A33 - NGN RIIO-2 Proposed Financial Package for RIIO-2
- A34 - NGN RIIO-2 Halo Effect and Additional Costs of Borrowing at RIIO-2
- A35 - NGN RIIO-2 Business Plan V2 to Final High Level Changes
- A23.A - NGN RIIO-2 Investment Decision Pack - Pressure Reduction Stations - CBA
- A23.A - NGN RIIO-2 Investment Decision Pack - Pressure Reduction Stations - EJP
- A23.A - NGN RIIO-2 Investment Decision Pack - Pressure Reduction Stations (Preheating) - CBA
- A23.A - NGN RIIO-2 Investment Decision Pack - Pressure Reduction Stations (Pressure Control) - CBA
- A23.B - NGN RIIO-2 Investment Decision Pack - Offtakes - CBA
- A23.B - NGN RIIO-2 Investment Decision Pack - Offtakes - EJP
- A23.B - NGN RIIO-2 Investment Decision Pack - Offtakes (Metering) - CBA
- A23.B - NGN RIIO-2 Investment Decision Pack - Offtakes (Odourant) - CBA
- A23.B - NGN RIIO-2 Investment Decision Pack - Offtakes (Preheating) - CBA
- A23.B - NGN RIIO-2 Investment Decision Pack - Offtakes (Pressure Control) - CBA
- A23.C - NGN RIIO-2 Investment Decision Pack - Local Transmission System - CBA
- A23.C - NGN RIIO-2 Investment Decision Pack - Local Transmission System - EJB
- A23.D - NGN RIIO-2 Investment Decision Pack - Connections - EJP
- A23.E - NGN RIIO-2 Investment Decision Pack - Reinforcement - EJP
- A23.F - NGN RIIO-2 Investment Decision Pack - TransPennine - CBA
- A23.F - NGN RIIO-2 Investment Decision Pack - TransPennine - EJP
- A23.G - NGN RIIO-2 Investment Decision Pack - Overcrossings - CBA
- A23.G - NGN RIIO-2 Investment Decision Pack - Overcrossings - EJP
- A23.H - NGN RIIO-2 Investment Decision Pack - Governors - CBA
- A23.H - NGN RIIO-2 Investment Decision Pack - Governors - EJP
- A23.I - NGN RIIO-2 Investment Decision Pack - Pressure Management - CBA
- A23.I - NGN RIIO-2 Investment Decision Pack - Pressure Management - EJP
- A23.I - NGN RIIO-2 Investment Decision Pack - Pressure Management (Net-Zero) - CBA
- A23.J - NGN RIIO-2 Investment Decision Pack - Technology and Systems - EJP
- A23.J - NGN RIIO-2 Investment Decision Pack - Technology and Systems (Cyber Security) - CBA
- A23.J - NGN RIIO-2 Investment Decision Pack - Technology and Systems (Hardware) - CBA
- A23.J - NGN RIIO-2 Investment Decision Pack - Technology and Systems (Innovation) - CBA
- A23.J - NGN RIIO-2 Investment Decision Pack - Technology and Systems (Software) - CBA
- A23.K - NGN RIIO-2 Investment Decision Pack - Operational Vehicles - CBA
- A23.K - NGN RIIO-2 Investment Decision Pack - Operational Vehicles - EJP
- A23.L - NGN RIIO-2 Investment Decision Pack - Gas Holder Demolition - CBA
- A23.L - NGN RIIO-2 Investment Decision Pack - Gas Holder Demolition - EJP
- A23.M - NGN RIIO-2 Investment Decision Pack - Mandatory Repex - EJP
- A23.M - NGN RIIO-2 Investment Decision Pack - Mandatory Repex (Stubbbs) - CBA
- A23.M - NGN RIIO-2 Investment Decision Pack - Mandatory Repex (PRE Services) - CBA
- A23.M - NGN RIIO-2 Investment Decision Pack - Mandatory Repex (Mains) - CBA
- A23.N - NGN RIIO-2 Investment Decision Pack - Non-Mandatory Repex - EJP
- A23.N - NGN RIIO-2 Investment Decision Pack - Non-Mandatory Repex (Above 2" Steel) - CBA
- A23.N - NGN RIIO-2 Investment Decision Pack - Non-Mandatory Repex (Above 2" Steel Net-Zero Sensitivity) - CBA
- A23.N - NGN RIIO-2 Investment Decision Pack - Non-Mandatory Repex (Diversions) - CBA
- A23.N - NGN RIIO-2 Investment Decision Pack - Non-Mandatory Repex (Overcrossings) - CBA
- A23.N - NGN RIIO-2 Investment Decision Pack - Non-Mandatory Repex (PE) - CBA
- A23.N - NGN RIIO-2 Investment Decision Pack - Non-Mandatory Repex (Phoenix) - CBA
- A23.N - NGN RIIO-2 Investment Decision Pack - Non-Mandatory Repex (Risers) - CBA
- A23.N - NGN RIIO-2 Investment Decision Pack - Non-Mandatory Repex (Tier 2 B) - CBA
- A23.N - NGN RIIO-2 Investment Decision Pack - Non-Mandatory Repex (Tier 2 B Net-Zero Sensitivity) - CBA
- A23.N - NGN RIIO-2 Investment Decision Pack - Non-Mandatory Repex (Tier 3) - CBA
- A23.N - NGN RIIO-2 Investment Decision Pack - Non-Mandatory Repex (Tier 3 Net-Zero Sensitivity) - CBA
- A23.N - NGN RIIO-2 Investment Decision Pack - Non-Mandatory Repex (Zero Scoring) - CBA
RIIO-GD1 Reports
RIIO-GD1 Business Plan (2012 - 2021)
Executive summary
Business plan
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- Appendix-1-ENA-Gas-Future-Scenarios-Report1
- Appendix2-TPA-Report-on-Medium-Term-Economic-Outlook
- Appendix3-Benchmarking-Matrix
- Appendix4-Innovation-Projects
- Appendix5-Stakeholder-Engagement
- Appendix6-EC-Harris-Report-on-Real-Price-Effects
- Appendix7-First-Economics-Report-on-Productivity
- Appendix8-Expenditure-Forecast-Plan-and-Table-Reconciliation
- Appendix10-Repex-Tier-2-Risk-Threshold-Methodology
- Appendix12-NTS-NGN-Capacity-Interaction
- Appendix13-What-is-the-Cost-of-Equity-for-RIIO-T1-and-RIIO-GD1
- Appendix14-Cash-Flow-Betas-and-Cost-of-Equity
- Appendix15-Debt-indexation-and-allowed-returns
- Appendix16-Long-Term-Equity-Returns
- Appendix17-Uncertainty-and-Risk
- Appendix18-Regional-Factors
- Appendix19B-Asset-Integrity-Assessment-Methodology
- Appendix-19C-NGN-RIIO-GD1-Network-Integrity-Capex1
- Appendix19E-Programme-Investment-Repex-Delivery
- Appendix19F-NGN-Innovation-Strategy-Benefits
- Appendix20-Regional-Economic-Impacts
- Appendix-21-IQI-NGN-Proposal
- Customer Engagement Group Report to OFGEM on NGN RIIO-2 Business Plan
- Customer Engagement Group Impacts Appendix 28
Gender Pay Reports
Group Strategies
Safe & reliable
Distribution System Management Principles Statement
Carbon Monoxide Detection
Gas Illegally Taken
Capacity Management Services Annual Report
Uniform Network Code
Long Term Development Statements
Business Separation
Keeping costs down
Regulatory Financial Performance Report
Regulatory Accounts
Statutory Accounts
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Archive
- Northern Gas Networks Finance plc 31 March 2019
- Northern Gas Networks Limited Operations Limited 31 March 2019
- Northern Gas Networks Limited Annual Report and Accounts 31 March 2019
- Northern Gas Networks Limited 31 March 2018
- Northern Gas Networks Finance plc 31 March 2018
- Northern Gas Networks Holdings Limited 31 March 2018
- Northern Gas Networks Operations Limited 31 March 2018
- Northern Gas Networks Finance plc 31 March 2017
- Northern Gas Networks Holdings Limited 31 March 2017
- Northern Gas Networks Limited Annual Reports and Accounts 31 March 2017
- Northern Gas Networks Operations Limited 31 March 2017
Transportation Pricing
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Archive
- Supplier of Last Resort Claims
- 2020-21(150 day notice)
- 2019-20 (60 day notice)
- 2019-20 (150 day notice)
- 2018-19 (60 day notice)
- 2018-19 (150 day notice)
- 2017-18 (60 day notice)
- 2017-18 (150 day notice)
- April 2009 Statement
- October 2009 Statement
- November 2009 Notice
- January 2010 Notice
- April 2010 Statement
- November 2010 Notice
- January 2011 Notice
- April 2011 Statement
- October 2011 Statement
- November 2011 Notice
- January 2012 Notice
- October 2012 Statement
- May 2012 Notice
- July 2012 Notice
- January 2012 Notice
- November 2012 Notice
- January 2013 Notice
- April 2013 Statement
- November 2013 Notice
- April 2014 Notice
- April 2014 Statement
- October 2014 Statement
- April 2015 150 Day Notice
- April 2015 60 Day Notice
- April 2015 Statement
- April 2016 60 Day Notice
- April 2016 Statement
Metering Pricing
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Archive
- May 2018 Statement
- March 2017 Statement
- June 2016 Statement
- March 2016 Notification
- May 2017 Notification
- February 2007 Notification
- May 2007 Statement
- June 2009 Notification
- September 2009 Statement
- June 2010 Notification
- September 2010 Statement
- August 2011 Notification
- November 2011 Statement
- January 2014 Notification
- April 2014 Statement
Connections Charges
Purchase Order Terms for Goods and Services
Investor Presentations
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Archive
- March 2016 Investor Presentation
- February 2013 Investor Presentation
- June 2013 Investor Presentation
- December 2013 Investor Presentation
- June 2012 Investor Update
- December 2012 Investor Presentation
- June 2011 Investor Update
- September 2011 Investor Update
- December 2011 Investor Update
- March 2010 Investor Presentation
- June 2010 Performance
- December 2010 Performance Investor Update
Interim Accounts
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Archive
- Northern Gas Networks Finance plc September 2019
- Northern Gas Networks Limited September 2019
- Northern Gas Networks Operations Limited September 2019
- Northern Gas Networks Limited September 2018
- Northern Gas Networks Finance plc September 2018
- Northern Gas Networks Holdings Limited September 2018
- Northern Gas Networks Operations Ltd 2018
- Northern Gas Networks Limited September 2017
- Northern Gas Networks Finance plc September 2017
- Northern Gas Networks Operations Limited September 2017
- Northern Gas Networks Holdings Limited September 2017