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.

Views reference
Modification status
ID Sort descending Name Status Last Updated
CMP277 CMP277: Special License Condition 4J Concluded
CMP278 CMP278: BSIS 2017 Housekeeping Concluded
CMP279 CMP279: Housekeeping modification to amend typographical errors in the CMP272 legal text Concluded
CMP280 CMP280: Creation of a New Generator TNUoS Demand Tariff which Removes Liability for TNUoS Demand Residual Charges from Generation and Storage Users Concluded
CMP281 CMP281: Removal of BSUoS Charges From Energy Taken From the National Grid System by Storage Facilities Concluded
CMP282 CMP282: The effect Negative Demand has on Zonal Locational Demand Tariffs Concluded
CMP283 CMP283: Consequential Changes to enable the Interconnector Cap and Floor regime Concluded
CMP284 CMP284: Improving TNUoS cost reflectivity (Reference Node) This modification has been withdrawn Concluded
CMP285 CMP285: CUSC Governance Reform – Leveling the Playing Field Concluded
CMP286 CMP286 Improving TNUoS Predictability Through Increased Notice of the Target Revenue used in the TNUoS Tariff Setting Process. 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.