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 | |
|---|---|---|---|---|
| CMP343 and CMP340 | CMP343 and CMP340: 'Transmission Demand Residual bandings and allocation for 1 April 2022 implementation (CMP343)' and 'Consequential changes for CMP343 (CMP340)' | Implemented | ||
| CMP339 | CMP339: Consequential changes for CMP317/327 (TCR) | Implemented | ||
| CMP335 & CMP336 | CMP335&CMP336: Transmission Demand Residual - Billing and consequential changes to CUSC Section 3 and 11 (TCR)’ & CMP336 'Transmission Demand Residual - Billing and consequential changes to CUSC Section 14 (TCR) | Implemented | ||
| CMP334 | CMP334: Transmission Demand Residual – consequential definition changes (TCR) | Implemented | ||
| CMP333 | CMP333: BSUoS – charging Supplier Users on gross demand (TCR) | Implemented | ||
| CMP332 | CMP332: Transmission Demand Residual bandings and allocation (TCR) | Withdrawn | ||
| CMP329 | CMP329: Housekeeping Modification to amend incorrect references to National Grid Electricity Transmission in the CMP295 legal text | Implemented | ||
| CMP326 | CMP326: Introducing a Turbine Availability Factor' for use in Frequency Response Capacity Calculation for Power Park Modules (PPMs) | Implemented | ||
| CMP324 & CMP325 | CMP324 & CMP325: Generation Zones – changes for RIIO-T2' & 'Rezoning – CMP324 expansion | Implemented | ||
| CMP323 | CMP323: Updating the CUSC governance process to ensure we capture the EBGL change process for Article 18 T and Cs | Implemented |
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.