- Back
- Who we are
- Electricity explained
- Future of energy
-
Industry information
- Back
- Home
- Industry information
- Connections
- Balancing Services
-
Charging
- Back
- Industry information
- Charging
- Balancing Services Use of System (BSUoS) charges
- Transmission Network Use of System (TNUoS) charges
- Assistance for Areas with High Electricity Distribution Costs (AAHEDC)
- Connection charges
- Charging guidance
- Charging policy developments
- Charging statements
- Submit a charging query
-
Codes Homepage
- Back
- Industry information
- Codes Homepage
- Connection and Use of System Code (CUSC)
- Grid Code (GC)
- System Operator Transmission Owner Code
- Security and Quality of Supply Standard (SQSS)
- Balancing Settlement Code (BSC)
- European Network Codes (ENC)
- Codes calendar
- Code changes: Beginner's Guide
- About the Codes Team
-
Industry Data and Reports
- Back
- Industry information
- Industry Data and Reports
- System Incidents Report
- Balancing services performance monitoring report
- Data finder and explorer
- Forecast volumes and costs
- GB Electricity System Operator Daily Reports
- System balancing reports
- Monthly transmission loss data (4l)
- System constraints
- Voltage costs
- Keeping the lights on throughout coronavirus
- Accelerated Loss of Mains applications
- Our consultation responses
- Our strategy
- Research & publications
Our response to coronavirus
Find out how we're working to keep Great Britain’s lights on reliably throughout the outbreak
ESO
Connections
We deal with all aspects of contracts for connections to use the National Electricity Transmission System (NETS). We do not supply or bill domestic consumers. If you have an enquiry about a domestic property, please contact your local distribution network operator (DNO).
Further enquiries
Contact your local Distribution Network Operator (DNO) if you have an electricity enquiry about any of the following:
- a domestic property;
- a small/medium industrial property.
Contact us about:
new connections to the NETS;
modifications to an existing connection agreement;
all enquiries relating to existing or proposed new and existing generation connections in England and Wales;
all enquiries relating to existing or proposed interconnectors from Great Britain to other countries.
Contact us about:
new connections to the NETS and the distribution system onshore in Scotland and the Western Isles;
modifications to existing connections agreements;
any related liaison with Scottish transmission owners and Scottish regional energy bodies.
Contact us about:
all customer compliance in relation to the Grid Code and bilateral agreements for new and existing connections.
Contact us about:
technical requirements for new connections to the GB Network;
technical support for modifications to an existing connection agreement;
the connection and infrastructure optioneering note process (CION) for offshore generators and interconnectors;
power quality requirements and queries for all generators connecting to the GB network.
Please do not contact us for domestic and household-related queries. Please contact your Distribution Network Operator (DNO) instead.
For questions about submitting an application, an existing application or connection, or security options, please contact the relevant Team Leader or your Customer Contract Manager.
Questions about domestic connections
We do not charge or supply domestic consumers directly. If you have questions about your household bills, domestic meter, or related issues please contact your network operator. You can find out who your operator is by entering your post code on the Energy Networks website.