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Strategic investment options: Shaping Subtransmission

The Distribution Future Energy Scenarios are used as an input into our Shaping Subtransmission studies, which aim to assess the ability of the existing network to accommodate new demand and generation connections under the DFES scenarios. We are currently on Round 2 of our studies; please see the table below for the latest and upcoming areas for study.

South WestSouth WalesEast MidlandsWest Midlands
CompleteComplete

Area currently being studied

Next area to study Q3/Q4 2019

Detailed analysis on the Subtransmission network for each licence area is carried out on a two year rolling cycle, and identifies thermal and voltage constraints on the network. We then work to assess options for conventional reinforcement and provide recommendations for low regret investment. The Shaping Subtransmission studies are also used to understand the economic potential for demand side response and/or generation constraint to avoid conventional reinforcement.

For each licence area we publish a report and host a webinar to disseminate information on our Strategic Investment Options studies to stakeholders. Please use the links on this page for each licence area to access the latest information and an archive of previous Shaping Subtransmission studies.

  • Below is an archive of the latest and previous Shaping Subtransmission studies for the South West licence area. A link to the accompanying South West DFES page can be found here.

    Round 2

    Shaping Subtransmission OutputLink to Information
    Report                                            Shaping Subtransmission South West 2018                            
    Accompanying Information 

    Network Diagrams:
    Devon and Cornwall
    Somerset and Severnside
    Post-HPC Somerset and Severnside

    Map

    Webinar9th August 2018 (webinar repeated on 14th August 2018)
    Slides available here
     

     

    Round 1

    Shaping Subtransmission OutputLink to Information
    Report                                                                                  

    Shaping Subtransmission South West 2016                                                                                                

    Webinar

    22nd September 2016



    Slides available to download here

  • Below is an archive of the latest and previous Shaping Subtransmission studies for the South Wales licence area. A link to the accompanying South Wales DFES page can be found here.

    Below is an archive of the latest and previous DFES studies for the South Wales licence area. A link to the accompanying South Wales Shaping Subtransmission page can be found here.

    Round 2

    Shaping Subtransmission OutputLink to Information
    Report                                            
    Shaping Subtransmission South Wales 2019                          
                     
    Accompanying Information 
    Network Diagram 
    Map
     
    Webinar28th March 2019
     

    Slides available to download here
     

     

    Round 1

    Shaping Subtransmission OutputLink to Information
    Report                                     
    Shaping Subtransmission South Wales 2016                       
     
    Accompanying Information 
    Network Diagram 
    Map
    Webinar                                                                                                            

    24th February 2017
         

    Slides available to download here

     

  • Below is an archive of the latest and previous Shaping Subtransmission studies for the East Midlands licence area. A link to the accompanying East Midlands DFES page can be found here.

    Round 1

    Shaping Subtransmission Output        

    Link to Information
    ReportShaping Subtransmission East Midlands 2017                                   
    Accompanying Information

    Network Diagram
    Map

    Webinar

    27th July 2017


    Slides available here
     
  • Below is an archive of the latest and previous Shaping Subtransmission studies for the West Midlands licence area. A link to the accompanying West Midlands DFES page can be found here.

    Round 1 

    Shaping Subtransmission OutputLink to Information
    ReportShaping Subtransmission West Midlands 2017                        
    Accompanying Information 

    Network Diagrams: 
    South 
    Birmingham & Black Country
    Shropshire
    North 

    Map

    Webinar27th February 2018
     

    Slides available here