CUSC Modifications

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
CMP414 CMP414: "CMP330/CMP374 Consequential Modification" Current
CMP439 CMP439: Removal of (BEGA) obligation for a sub 100 MW Generator Withdrawn
CMP445 CMP445 Pro-rating first year TNUoS for Generators Current
CMP444 CMP444 Introducing a cap and floor to wider generation TNUoS charges Current
CMP288&CMP289 CMP288&CMP289: Explicit charging arrangements for customer delays and backfeeds (CMP288) and consequential change (CMP289) Current
CMP413 CMP413: Rolling 10-year wider TNUoS generation tariffs Rejected
CMP393 CMP393: Using Imports and Exports to Calculate Annual Load Factor for Electricity Storage Rejected
Establishing ISOP in industry codes 2024 Establishing ISOP in industry codes 2024 Implemented
CMP396 CMP396: Re-introduction Of BSUoS on Interconnector Lead Parties Rejected
CMP435 CMP435 Application of Gate 2 Criteria to existing contracted background Current

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.