Energy UK response to NESO tRESP consultation

Executive Summary

Energy UK welcomes NESO’s consultation on the tRESP and the associated publication on the NESO website. The information is generally well-presented, though minor technical issues on the webpage and opportunities for greater data depth and interactivity remain.

Energy UK highlights the need for enhanced regional data on major consumers (e.g., data centres), flexibility uptake, and the ability to cross-compare datasets such as heat pump adoption and fuel poverty. Consistency across regional content, particularly regarding district heating projects, is encouraged, alongside inclusion of cross-region dependencies and cost projections to enable informed policymaking and investment decisions.

On methodology, Energy UK supports NESO’s baseline and pathway approach but calls for greater clarity on how pathways, Strategic Investment (SI) Needs, and regional contexts interrelate. NESO should incorporate anc clearly signpost sensitivities in the tRESP pathways and “decision moments” to manage uncertainty around electrification and technology adoption.

Energy UK urges NESO to integrate local and third-party data sources to prevent under- or over-investment risks and to ensure robust evidence for RIIO-ED3 planning. The definitions and scope of Common Planning Assumptions (CPAs) are broadly fit for purpose, though flexibility for adjustments is essential.

Finally, the concept of SI Needs is supported, but Energy UK requests clearer definitions, examples, and alignment with DESNZ’s emerging Strategic Demand framework. Including cost estimates and ensuring data coordination across NESO and government bodies will be critical for transparency, stakeholder engagement, and informed decision-making.