Our response to coronavirus

Find out how we're working to keep Great Britain’s lights on reliably throughout the outbreak.

ESO Code Administrator Improvements Page

Welcome to the ESO Code Administrator Improvements Page, here you will find all the improvements that we are currently making based on feedback that you have given us and our commitments under the 

The ESO Incentive Forward Plan 2019-21



Recently we have introduced:

Modification Tracker  this has been created to provide a transparent, easily accessible information to track modification proposals across the frameworks we administer Grid Code, CUSC, STC and SQSS. The Modifications Tracker will be updated on the first working day of the month.

Frequently Asked Questions  this document provides you with answers on the Code Governance process.

Horizon Scanning Grid Code,  CUSC,  STC  and  CACoP provides a clear transparentview of potential code changes across the codes we administer.

Improvement Webinar  this webinar provides an overview on the new tools and improvements that have been released so far.

Governance webinar this webinar provides an overview on the governance process and carries out a deep dive into the life cycle of a modification. If you are pressed for time you can listen to a bitesize overview.

Critical Friend Guidance setting out the actions that we will take upon submission of new modification proposals from 1 August 2019, how we will demonstrate transparency in the process, the feedback we will share with industry and Panels to demonstrate improvements and clarifying the revised timetable for new modification proposals to be submitted.

Legal Text Guidance to set out the roles and responsibilities for the production of legal text for any proposed modification or alternate modification.


All of the above can be found on the Codes overview page.