UK’s Grid Connection Reforms: Focus on delivering the Clean Power 2030 Action Plan
In April 2025, the UK’s energy regulator, Office of Gas and Electricity Markets (Ofgem), made changes to the regulatory framework to implement connection reforms, specifically by approving NESO’s Target Model Option 4 (TMO4+) connection reform package. This includes industry code modifications, connections methodologies established under the NESO licence (as amended), and Electricity Standard Licence Condition changes (introduced by Ofgem). Subsequently, in the same month, NESO published the final versions of the connection methodologies – Gate 2 Criteria, Connections Network Design Methodology (CNDM) and Project Designation. These contain minor amendments following Ofgem’s recommendations and will be used to implement the connection reforms. These reforms seek to address long wait times of over 15 years and slow connection rates, which are misaligned with the system’s needs.
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