NESOOFGEMDESNZ

Wiki

How GB energy regulation works, from statutes to industry codes.

Projects

Connections218

The access crisis

10 open
Networks707

Investment, charging, regulation

16 open
Generators1202

CfD, Capacity Market, RO, FiT

15 open
Nuclear31

The build-again story

1 open
Statistics210

Data releases

Consumer280

Bills, efficiency, fuel poverty

7 open
Data

Interactive charts: generation, prices, capacity

Library

Full-text reference publications

Instruments and topics (134)

▶Primary legislation10
Electricity Act 1989
Energy Act 2004
Energy Act 2008
Energy Act 2010
Energy Act 2011
Energy Act 2013
Energy Act 2016
Energy Act 2023
Gas Act 1986
Nuclear Energy (Financing) Act 2022** 2026-04-05
▶Licences4
Electricity Generation Licence -- Standard Licence Conditions** 2026-04-06
Electricity Supply Licence -- Standard Conditions** 2026-04-05
Electricity Transmission Licence** 2026-04-05
NESO Electricity System Operator Licence** 2026-04-05
▶Industry codes17
Balancing and Settlement Code (BSC)** 5 April 2026
BSC Section A: Parties and Participation** 5 April 2026
BSC Section B: The Panel** 5 April 2026
BSC Section K: Classification and Registration of Metering Systems and BM Units** 5 April 2026 | **Section version:** v56.0, effective 12 December 2025
BSC Section Q: Balancing Mechanism Activities** 5 April 2026 | **Section version:** v47.0, effective 26 June 2025
Distribution Code (DCode)** 6 April 2026
Distribution Connection and Use of System Agreement (DCUSA)
Grid Code -- Connection Conditions (CC)
Grid Code -- Operating Codes (OC)
Independent Gas Transporters' Uniform Network Code (iGT UNC)
Retail Energy Code (REC)** 6 April 2026
Smart Energy Code (SEC)** 6 April 2026
The Connection and Use of System Code (CUSC)
The Grid Code
The Security and Quality of Supply Standard (SQSS)
The System Operator - Transmission Owner Code (STC)
Uniform Network Code (UNC)
▶Contracts for Difference6
CfD (Allocation) Regulations 2014** 2026-04-05
CfD (Definition of Eligible Generator) Regulations 2014** 2026-04-05
CfD (Miscellaneous Amendments) Regulations 2025** 2026-04-05
CfD Allocation Framework
CfD Standard Terms and Conditions** 2026-04-05
UK CfD Auction Results
▶Capacity Market3
Capacity Market Rules
Electricity Capacity (Supplier Payment etc.) Regulations 2014** 2026-04-05
Electricity Capacity Regulations 2014** 2026-04-05
▶Renewables and low carbon10
CHPQA Standard
Feed-in Tariffs Order 2012
Guarantees of Origin (REGO) Regulations** 2026-04-05
Offshore Generating Stations: Applications for Consent** 2026-04-05
Renewable Energy Guarantees of Origin (REGO)
Renewable Heat Incentive (RHI) Regulations** 2026-04-05
Renewables Obligation** 2026-04-05
Renewables Obligation Closure Order 2014
Smart Export Guarantee (SEG)
Smart Export Guarantee Order (SI 2019/1005)** 2026-04-05
▶Networks and charging12
Electricity (Connection Charges) Regulations 2002** 2026-04-05
Electricity Safety, Quality and Continuity Regulations 2002 (ESQCR)** 2026-04-05
Energy Price Guarantee Pass-through Requirements
Offshore Transmission Owner (OFTO) Licence
Offshore Transmission Owner (OFTO) Tender Regulations** 2026-04-05
Offshore Transmission Owner (OFTO) Tender Regulations
RIIO-ED3: Electricity Distribution Price Control (2028-2033)** 2026-04-05
RIIO-ET3: Electricity Transmission Price Control (2026-2031)** 2026-04-05
RIIO-GD3: Gas Distribution Price Control 2026-2031** 2026-04-05
RIIO-GT3: Gas Transmission Price Control 2026-2031** 2026-04-05
TNUoS Charging Methodology
TNUoS Reform Under Reformed National Pricing** 2026-04-04
▶Consumer and environment18
Boiler Upgrade Scheme (BUS)** 2026-04-05
Boiler Upgrade Scheme (BUS) Regulations** 2026-04-05
Clean Heat Market Mechanism (CHMM)** 2026-04-05
Climate Change Agreements** 2026-04-05
Climate Change Agreements (Administration) Regulations 2012** 2026-04-05
Climate Change Levy (General) Regulations 2001** 2026-04-05
ECO4 Order (SI 2022/875)** 2026-04-05
Electric Vehicles (Smart Charge Points) Regulations 2021** 2026-04-05
Electricity and Gas (Smart Meters Licensable Activity) Order 2012** 2026-04-05
Energy Bill Relief Scheme (EBRS)
Energy Company Obligation 4 (ECO4)** 2026-04-05
Energy Performance of Buildings (England and Wales) Regulations 2012** 2026-04-05
Gas and Electricity (Consumer Complaints Handling Standards) Regulations 2008** 2026-04-05
Great British Insulation Scheme (GBIS)** 2026-04-05
Heat Network (Metering and Billing) Regulations 2014** 2026-04-05
Smart Meters Act 2018
Warm Home Discount** 2026-04-05
Warm Home Discount: Reconciliation Regulations** 2026-04-05
▶Nuclear3
Nuclear RAB Revenue Collection Regulations 2023** 2026-04-05
Nuclear Site Licence Conditions (LC 1-36)
UK Nuclear Power Policy
▶Market design8
Electricity and Gas (Internal Markets) Regulations** 2026-04-05
Electricity Market Reform (General) Regulations 2014** 2026-04-05
Electricity Supplier Payments (Amendment) Regulations 2022** 2026-04-05
REMIT - Wholesale Energy Market Integrity and Transparency
REMIT Enforcement Regulations 2013** 2026-04-05
Review of Electricity Market Arrangements (REMA)** 2026-04-04
UK Emissions Trading Scheme (UK ETS)** 2026-04-06
UK ETS Auctioning Regulations** 2026-04-05
▶Reference data3
Network Levy Charge (NLC)** 2026-04-04
The GB Electricity System: Reference Data** March 2026
UK Electricity Grid Constraints and Balancing Costs
▶Other40
Access and Forward-Looking Charges SCR
BSUoS Charging Methodology
CACM Regulation
Climate Change Act 2008
CMA Energy Market Investigation 2016
COMAH Regulations 2015
Connection Charging Methodology (Distribution)
Connection Charging Methodology (Transmission)
Connection Charging Methodology (Transmission)
Dcc Regulation
DCC Smart Meter Communication Licence
Domestic Gas and Electricity (Tariff Cap) Act 2018
DUoS Charging Methodology
EBGL: Electricity Balancing Guideline
Electricity Distribution Licence
Electricity Interconnector Licence
ENA Engineering Recommendation G100: Customer Export and Import Limitation Schemes
ENA Engineering Recommendation G98 (ER G98)** 10 April 2026
ENA ER G5/5 - Harmonic Voltage Distortion
ENA ER G99 - Generation Connection (Type B/C/D)
ENA ER P2 - Security of Supply
ENA ER P28 - Voltage Fluctuations (Flicker)
ER Regulation - Emergency and Restoration Network Code
EREP 130: Application Guide for EREC P2 Security of Supply
Forward Capacity Allocation (FCA) Regulation
Gas Shipper Licence
Gas Supply Licence
Gas Transporter Licence
HVDC Regulation
NPS EN-1 - Overarching National Policy Statement for Energy
NPS EN-2 - National Policy Statement for Natural Gas Electricity Generating Infrastructure
NPS EN-3 - National Policy Statement for Renewable Energy Infrastructure
NPS EN-4 - Gas Supply Infrastructure and Gas and Oil Pipelines
NPS EN-5 - Electricity Networks Infrastructure
NPS EN-7 - National Policy Statement for Nuclear Energy Generation
ONR Safety Assessment Principles (SAPs)
Planning Act 2008
RfG Regulation - Requirements for Generators
System Operation Guideline (SOGL)
Utilities Act 2000