The Great Grid Reshuffling – CMP434 and CMP435 consultations open

A significant and much awaited reform of the grid connections process is underway. These changes will be implemented through modifications to the Connection and Use of System Code (CUSC). The key code modification proposals are CMP434 (Implementing Connections Reform) and CMP435 (Application of Gate 2 Criteria to existing contracted background). 

The CMP434 and CMP435 consultations opened on 25 July 2024 and will close on 6 August 2024. Project developers should take advantage of this narrow window of opportunity to shape the final modification report before it is submitted to Ofgem for approval. The implementation date for the reformed process is still targeted for 1 January 2025. 

This note is intended to summarise both consultations but is not a substitute for a full review. Given the overlap between the consultations, we recommend engaging with CMP434 first, and a comparison between the two proposals can be found in Annex 6 of CMP435. Developers with existing connection agreements will need to pay close attention to CMP435. 

At Freeths we advise on all elements of clean energy projects, including grid connection diligence and grid sharing arrangements. Please get in touch with Shraiya Thapa, Deborah Harvey and Clare King for more information. 

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The content of this page is a summary of the law in force at the date of publication and is not exhaustive, nor does it contain definitive advice. Specialist legal advice should be sought in relation to any queries that may arise.

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