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 | Link to modification |
|---|---|---|---|---|
| CMP419 | CMP419: Generation Zoning Methodology Review | Current | view | |
| CMP402 | CMP402: Introduction of Anticipatory Investment (AI) principles within the User Commitment Arrangements | Current | view | |
| CMP376 | CMP376: Inclusion of Queue Management process within the CUSC | Implemented | view | |
| CMP308 | CMP308: Removal of BSUoS charges from Generation | Implemented | view | |
| CMP452 | CMP452: Suspension of TNUoS Payments for generators connecting during the 2024/25 charging year | Withdrawn | view | |
| CMP403 and CMP404 | CMP403 and CMP404: Introducing Competitively Appointed Transmission Owners & Transmission Service Providers (Section 14 and 11) | Implemented | view | |
| CMP437 | CMP437: Update CUSC arrangements to replace the Electricity Arbitration Association with the London Court of International Arbitration (Charging) | Implemented | view | |
| CMP436 | CMP436 Update CUSC arrangements to replace the Electricity Arbitration Association with the London Court of International Arbitration (Non Charging) | Implemented | view | |
| CMP415 | CMP415: Amending the Fixed Price Period from 6 to 12 months | Implemented | view | |
| CMP430 | CMP430: Adjustments to TNUoS Charging from 2025 to support the Market Wide Half Hourly Settlement (MHHS) Programme | Implemented | view |
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.