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.

GC0124 Critical Friend review period for submission of new modifications

Modification status: Current - Draft Self-Governance Grid Code Modification Report

Last updated: 7 June 2019

This modification seeks to codify a requirement for new
modifications to be submitted to the National Grid ESO Code Administrator for a period of
five working days ahead of when the modification is to be submitted to the Grid Code Panel.
This period will allow the Code Administrator to deliver a better service and in turn allow all
network users to better understand code modifications.