We are a separate company

On 1 April the Electricity System Operator became a legally separate company within the National Grid Group. Find out more about what this change means.

European network codes

The Third Energy Package of European legislation created a requirement for European network codes (ENC), covering grid connections, markets, and system operation. The codes are designed to provide a sustainable, secure and competitive electricity market across Europe.

Commencement of ENCs

All EU Network Codes (ENCs) have now entered into force, and are EU Regulations in their own right. Implementation activities in Britain will continue for a number of years. Grouped into three areas, there are eight European network codes required by the Third Energy Package.