Minded-to Decision on CMP444: Introducing a cap and floor to wider generation TNUoS charges

Minded-to Decision on CMP444: Introducing a cap and floor to wider generation TNUoS charges | Ofgem Please enable JavaScript in your web browser to get the best experience. BETA This site is currently in BETA. Help us improve by giving us your feedback . Close alert: Minded-to Decision on CMP444: Introducing a cap and floor to wider generation TNUoS charges Publication type: Consultation Publication date: 10 July 2025 Last updated: 23 October 2025 Closed date: 12 August 2025 Status: Closed (with decision) Topic: Electricity transmission, National Energy System Operator (NESO), Energy codes Subtopic: Connection and use of system code (CUSC) Show all updates Print this page Related links Authority update on decision timing for CMP444: Introducing a cap and floor to wider generation TNUoS charges Share the page Share on Facebook Share on Twitter Share on LinkedIn Details of outcome In July 2025, we consulted on our minded-to decision to reject Connection and Use of System Code (CUSC) CMP444: Introducing a cap and floor to wider generation TNUoS charges. The proposal aimed to place upper and lower limits on the absolute £/kW Peak, Year-Round Shared and Year-Round Not Shared Wider tariffs. We received a total of 25 responses to our consultation, including four confidential responses. Those views were taken into consideration in our Final Decision, alongside the Final Modification Report (FMR). Consistent with our minded-to decision, we remain of the view that none of the modification proposals would better facilitate achievement of the ACOs, and that all of the proposals should therefore be rejected. Our final decision is to direct that the modification CMP444 not be made. Read the full outcome Final decision: CMP444 – Introducing a cap and floor to wider generation TNUoS charges [PDF, 359.78KB] Consultation responses: CMP444 – Introducing a cap and floor to wider generation TNUoS charges [ZIP, 6.65MB] Original consultation Consultation description We are consulting on our minded-to decision to reject Connection and Use of System Code (CUSC) Modification Proposal CMP444: Introducing a cap and floor to wider generation TNUoS charges. Next steps This consultation will close (deadline for responses) at 5pm on 11 August 2025. Following this consultation closing, we will review responses and publish a final decision on CMP444. How to respond We particularly welcome responses from parties affected by these proposals, including Transmission Network Use of System (TNUoS)-liable generators, suppliers, consumer representatives, and the National Energy System Operator (NESO). We also welcome responses from other interested stakeholders and the public. Responses should be sent via email to tnuosreform@ofgem.gov.uk . Respond name David Jones Respond email tnuosreform@ofgem.gov.uk Main document Consultation on our minded-to decision in respect of CMP444 [PDF, 430.65KB] Print this page Related links Authority update on decision timing for CMP444: Introducing a cap and floor to wider generation TNUoS charges Share the page Share on Facebook Share on Twitter Share on LinkedIn All updates 23 October 2025 The following documents were added: Decision: CMP444 – Introducing a cap and floor to wider generation TNUoS charges Consultation responses: CMP444 – Introducing a cap and floor to wider generation TNUoS charges Close