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Regulatory documents

Regulatory documents

We’re regulated by Ofgem and Ofwat to own and operate electricity, gas and water networks across England, Scotland and Wales.

Electricity

Code of practice

Code of Practice 2024 Code of Practice 2023 Code of Practice 2022

Gas

Code of practice

Code of Practice 2023 Code of Practice 2022

Water

Codes of practice

Customer Code of Practice Debt Code of Practice Leakage Code of Practice

Compensation form

Compensation form Compensation form - online

Electricity

Distribution charges

EDCM Use of System Charging Methodology 2026 EDCM Use of System Charging Methodology 2022

Use of System Charging Methodology 2024 Use of System Charging Methodology 2023

Use of System Charging Statement 2025-26 Use of System Charging Statement 2024-25 Use of System Charging Statement 2023-24 Use of System Charging Statement 2021-22 Use of System Charging Statement 2019-20

Use of System Charging Tables 2027-28 Use of System Charging Tables 2026-27 Use of System Charging Tables 2025-26 Use of System Charging Tables 2024-25 Use of System Charging Tables 2023-24 Use of System Charging Tables 2022-23 Use of System Charging Tables 2021-22 Use of System Charging Tables 2020-21 Use of System Charging Tables 2019-20

Ofgem Direction to Derogate Notice 2027-28

Electricity

Embedded capacity register

Download document

Electricity

Flexibility statement

Flexibility Statement 2026 Flexibility Statement 2024

Electricity

Meter Point Administration Services charges

MPAS Statement of Charges 2024 MPAS Statement of Charges 2023 MPAS Statement of Charges 2022 MPAS Statement of Charges 2021 MPAS Statement of Charges 2020 MPAS Statement of Charges 2019 MPAS Statement of Charges 2018

Electricity

New connection charges

Connection Charging Statement 2024 Connection Charging Statement 2023 Connection Charging Statement 2020 Connection Charging Statement 2019

Electricity

Security of supply

Safety and Security of Supply Statement 2024 Safety and Security of Supply Statement 2023 Safety and Security of Supply Statement 2020

Electricity

Whole system coordination register

Download document

Gas

Network code

Network Code 2023 Network Code 2020

Gas

New connection charges

New Connection, Adoption and System Exit Charges 2023 New Connection, Adoption and System Exit Charges 2022 New Connection, Adoption and System Exit Charges 2021 New Connection, Adoption and System Exit Charges 2020 New Connection, Adoption and System Exit Charges 2019

Gas

Transportation charges

Transportation Charging Statement 2023 Transportation Charging Statement 2022 Transportation Charging Statement 2021 Transportation Charging Statement 2020 Transportation Charging Statement 2019

Water

Drought plan

Drought plan 2025-30

Water

Household charges

Household Assurance Statement 2026-27 Household Assurance Statement 2025-26

Water

New connection charges

New Connection Assurance Statement 2026-27 New Connection Assurance Statement 2025-26

New Connection Charges 2026-27 New Connection Charges 2025-26

Water

No Worse Off Assessment

No Worse Off Assessment 2026

Water

Ofwat annual returns

Assurance Statement Code for Adoption Review Customer Statement Financial Disclosures Independent Accountant Report Regulatory Reporting Tables Ringfencing Certificate Structure and Governance

Annual Performance Report Addendum Assurance Statement Customer Statement Financial Support Agreement Regulatory Reporting Tables Ringfencing Certificate Supplementary Information

Water

Pollution Incident Reduction Plan

Pollution Incident Reduction Plan 2026

Water

Water Resources Management Plan

Draft Water Resources Management Plan 2026 Water Resources Management Plan Tables 2026 Pre-consultation Statement of Response 2026

Water

Wholesale charges

Wholesale Charges Assurance Statement 2026-27 Wholesale Charges Assurance Statement 2025-26

Wholesale Charges 2026-27 Wholesale Charges 2025-26