We are becoming a separate company

In April 2019, the Electricity System Operator is becoming a separate company within the National Grid Group. Find out more about what this change will mean.

Electricity connection charges

Connection Charges recover the cost of installing and maintaining connection assets which connect individual users to the GB Transmission Network.The connection charge is calculated annually and consists of a capital component and a non-capital component. Charges are published in January for each user and take effect from 1 April each year.

Please download the following guide to better understand connection charging:

Download the Guide to Connection Charging

To understand the costs associated with connecting to the National Electricity Transmission System (NETS), please refer to the  Charge Modeller and Application Fee Calculator document. The charge modeller provides an indicative cost for the annual connection charge for new assets being installed, and allows you to create hypothetical scenarios based on various factors. The application fee calculator calculates the cost of an application fee based on the location of the connection, size of connection, and offer type.