transitional Regional Energy Strategic Plan (tRESP) Consultation
The transitional RESP is the first publication in the journey towards transforming and improving local energy infrastructure, developing bespoke plans for Scotland, Wales and nine English regions.
We are aiming to publish the final tRESP in January 2026. The electricity distribution network operators (DNOs) will then use the tRESP outputs, alongside Ofgem’s business planning guidance, to develop their plans for the third electricity distribution price control period, also known as ED3, which covers 2028-33. The current consultation sets out our progress to date and seeks stakeholders’ views to support the final output.
tRESP has been designed as a bridge between the current approach to energy distribution network planning and the full RESP approach which will be in place from 2027.
The tRESP Consultation closed on 3rd November 2025 at 23.59pm.
During the consultation, we asked for feedback on the following tRESP components:
- Nations and Regions Contexts
- Pathways and Consistent Planning Assumptions (CPAs)
- Strategic Investment Need
The consultation is now closed. We will analyse the responses received and update the tRESP components, where appropriate. All responses will be shared, in full, with Ofgem and DESNZ, even if marked as confidential.
The following documents provide as detailed a view as possible to support future electricity distribution network planning, at a national and regional level. The extent of the detail reflects the timescales we have to deliver tRESP, following the scope that was issued by Ofgem in February 2025. The RESP team is continuing to work on the tRESP components alongside this consultation, to ensure we can meet the January 2026 publication deadline. An update on progress was provided at the October 2025 meetings of the RESP Forums.
If you have any questions about the consultation process, other additional comments or queries, please email us.
Transitional Regional Energy Strategic Planning (tRESP) Consultation Webinar
An overview of the tRESP Consultation and the purpose of the consultation.
tRESP Frequently Asked Questions
Find out more about the tRESP consultation in our FAQs. These are being updated regularly so please keep checking back for updates.
Digital Platform
tRESP Pathways
Provides an initial overview of tRESP pathway visualisations, derived from illustrative data, along with corresponding narratives for each RESP nation and region.
tRESP Strategic Investment Need
Provides a spatial view of where SI Needs may be emerging, and accompanying narratives that summarise common hotspot types, and early trends across each nation and region.
tRESP Nations and Regions Contexts
Provides an initial view of conditions and priorities for each RESP nation and region.
Additional documents
tRESP Consistent Planning Assumptions (CPAs) Methodology and Detailed Design
The tRESP Consistent Planning Assumptions (CPAs) Methodology and Detailed Design covers our end-to-end approach to the development of CPAs.
tRESP Consistent Planning Assumptions Value Workbook
The Consistent Planning Assumptions (CPAs) Value Workbook contains proposed default values/ranges for all CPAs, including profiles and diversity corrections.
tRESP Pathways Building Blocks List
The Pathways Building Blocks Workbook contains a list of building blocks and key assumptions used in creating tRESP Pathways.
tRESP Pathways Methodology and Detailed Design
The tRESP Pathways Methodology and Detailed Design covers our end-to-end approach to the development of Pathways.
tRESP Nations and Regions Context Methodology and Detailed Design
The tRESP Nations and Regions Context Methodology and Detailed Design covers our approach and data used to develop the Nations and Regions Context.
tRESP SI Need Methodology and Detailed Design
This detailed methodology will focus on Strategic Investment (SI) Need. NESO will work with stakeholders collaboratively to identify and position areas of SI Need for progression within the Revenue = Incentives + Innovation + Outputs Electricity Distribution Three (RIIO-ED3) price control period, 2028-2033.