You can raise a modification – or mod – when you want to propose a change to any part of the CUSC.

For more information, please contact [email protected]

Search for any current or concluded modifications by name or ID. You can sort mods by ID, name, status or date of update.

Modification status
ID Name Status Last Updated Sort ascending
CAP098 CAP098 - Reassessment of Suppliers Value at Risk Concluded
CAP077 CAP077 - Revision to CUSC Amendment implementation dates, where an Authority decision is referred to Appeal or Judicial Review. Concluded
CAP050 CAP050 - Review Process for implemented Urgent Amendment Proposals Concluded
CAP019 CAP019 - Reactive Power default payment rate indexation Concluded
CMP314 CMP314: Updating the CUSC to align Power Available with the Grid Code definition for Power Park Modules Concluded
CMP405 CMP405: TNUoS Locational Demand Signals for Storage Current
CMP421 CMP421: CUSC Section 14 – Housekeeping changes update Current
CMP221 CMP221: Interruption compensation in the absence of market suspension during a Partial Shutdown Concluded
CMP242 CMP242: Charging arrangements for interlinked offshore transmission solutions connecting to a single onshore substation Concluded
CMP259 CMP259: Clarification of decrease in TEC as a Modification Concluded

More about modifications

Modification Tracker

Our Tracker gives you the latest details on current code modifications including the purpose and the stakeholders it affects, as well as panel comments and where it is in the review process. It is published on the 7th (or next working day) of each month.

Modification Proposal Form

If you're thinking about raising a modification, please get in touch with us. Our experts can give you advice on your Proposal, explain how the modification process works and help to answer any questions you may have. When we receive your Proposal, we'll check it through and work together to make sure it's easy to understand.

Calendar

Once you've been in touch and are ready to write your Proposal paper, send it to us by the monthly modification submission date which you can find on our Calendar.