Grid Code (GC)
The Grid Code has the technical rules for connecting to and using the National Electricity Transmission System (NETS). Following the Grid Code is required by the Connection and Use of System Code (CUSC).
As the code administrator for the Grid Code, we manage and update the Grid Code. All changes must be reviewed by the Grid Code Review Panel, and approved by the panel or Ofgem.
If you're interested in connecting to the NETS, find out more about the connections process.
For more information about the code, subscribe to the Grid Code mailing list or email us at: [email protected]
Grid Code Development Forum (GCDF)
The GCDF facilitates technical discussion of grid code-related issues between us and interested industry participants. Here you will find the proposals for this forum and details related to…
Grid Code Panel
The Grid Code Review Panel (GCRP) meets every month, its function is to evaluate and administer amendments to the code, review any consequences of those amendments and more.
Grid Code documents
All documents relating to the Grid Code are available here to download, including the latest version of the code in full and details of any re
Grid Code Modifications
Here you can search for any current or concluded modifications as well as raising a modification when you want to propose a change to any part of the Grid Code.
Electrical standards documents
Here you will find the electrical standards documents including specifications for electronic data communications facilities that apply to transmission-connected generators in England, Wales, and…
Modification tracker
Our modification tracker gives you the most up-to-date details on current modifications for each of the four codes.
This includes the purpose of the modification, the stakeholders it affects, panel comments on prioritisation, and where it is in the review process.
We publish the tracker on the 7th of each month, or the following working day if the 7th falls on a weekend or holiday.