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 Sort descending | Name | Status | Last Updated | |
|---|---|---|---|---|
| CMP352 | CMP352 'Correction to ‘Revised Indicative Annual TNUoS charge’ formulas in Appendix 2 of CUSC Section 3' | Concluded | ||
| CMP353 | CMP353 'Stabilising the Expansion Constant and non-specific Onshore Expansion Factors from 1st April 2021' | Concluded | ||
| CMP354 | CMP354 'Capacity Allocation and Congestion Management Regulation (CACM) cost sharing consequential changes' | Concluded | ||
| CMP355 & CMP356 | CMP355 & CMP356 'Updating the Indexation methodology used in TNUoS and Transmission Connection Asset charges for RIIO2 (CMP355) & Definition changes for CMP355 (CMP356)' | Concluded | ||
| CMP357 | CMP357 'To improve the accuracy of the TNUoS Locational Onshore Security Factor for the RIIO2 Period' | Concluded | ||
| CMP358 & CMP359 | CMP358 & CMP359 : Implementation of the Small Generation Discount into the CUSC & Definition changes for CMP358 | Concluded | ||
| CMP360 | CMP360 'Aligning Section 14 of the CUSC ‘Balancing Services Use of System Charging Methodology’ to the licence changes introduced by RIIO-2 in respect of the ‘System Operator Revenue Restriction’ | Concluded | ||
| CMP361 & CMP362 | CMP361 & CMP362: 'BSUoS Reform: Introduction of an ex ante fixed BSUoS tariff & Consequential Definition Updates' | Concluded | ||
| CMP363 & CMP364 | CMP363 & CMP364: TNUoS Demand Residual charges for transmission connected sites with a mix of Final and non-Final Demand & Definition changes for CMP363 | Concluded | ||
| CMP365 | CMP365 'Improvements to CUSC Governance Arrangements' | Concluded |
More about modifications
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.
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.
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.