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.
| ID | Name | Status | Last Updated Sort ascending | |
|---|---|---|---|---|
| CMP448 | CMP448: Introducing a Progression Commitment Fee to the Gate 2 Connections Queue | Current | ||
| CMP446 | CMP446: Increasing the lower threshold in England and Wales for Evaluation of Transmission Impact Assessment (TIA) | Current | ||
| CMP316 | CMP316: TNUoS Arrangements for Co-located Generation Sites | Current | ||
| CMP344 | CMP344: Clarification of Transmission Licensee revenue recovery and the treatment of revenue adjustments in the Charging Methodology | Current | ||
| CMP451 | CMP451: Suspending TNUoS payments when TOs and/or NESO has delayed connection date | Current | ||
| CMP449 | CMP449: Rectifications to pending 01 April 2025 implementation legal text | Current | ||
| CMP450 | CMP450: Introducing the definition of Dynamic Reactive Compensation Equipment (DRCE) in the CUSC | Current | ||
| CMP418 | CMP418: Refine the allocation of Dynamic Reactive Compensation Equipment (DRCE) costs at OFTO transfer | Current | ||
| CMP444 | CMP444 Introducing a cap and floor to wider generation TNUoS charges | Current | ||
| CMP432 | CMP432: Improve “Locational Onshore Security Factor” for TNUoS Wider Tariffs | 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.