Grid Supply Points Overview

Information Comments (0)

Introduction

This table provides an overview of the physical and technical capacity at every Grid Supply Point (GSP).

The Technical Limits fields provide a RAG status on whether this is available yet, and where available the limits as agreed with National Grid ESO which will not have a negative impact on the transmission network. This is an ongoing development and as they become available more GSPs will become part of this process, and values may change over time.

The Import limit is provided for winter, summer and the access period. The Historical Maximum and Minimum Power Flow comes from UK Power Networks' own analysis of the power flow through that GSP in the previous year.

The Asset Import Limit and Asset Export Limit is calculated based on the Supergrid transformer capacities available at the GSP, and are provided for indicative purposes only and may not reflect the actual capacity at the GSP.

The Export and Import Capacity Utilisation is then calculated as a ratio of the maximum and minimum demand and the capacity at the GSP, which where possible is the technical limits and where not possible, the asset capacity. Combined with the previous table it provides a thorough view of headroom at all GSPs.

Methodological Approach

Data is compiled from existing datashare between UK Power Networks and the National Energy System Operator. UK Power Networks has included Functional Locations (FLOCs) to aid with referencing with other UK Power Networks datasets.

Quality Control Statement

Quality Control Measures include:

  • Verification steps to match features only with confirmed functional locations.
  • Manual review and correct of data inconsistencies
  • Use of additional verification steps to ensure accuracy in the methodology

    • Assurance Statement

    The Open Data Team and DSO Data Science team worked together to ensure data accuracy and consistency.

    Other

    Download dataset information: Metadata (JSON)

    Definitions of key terms related to this dataset can be found in the Open Data Portal Glossary: https://ukpowernetworks.opendatasoft.com/pages/glossary/

    Supported by National Energy SO Open Data.

    Dataset Identifier
    ukpn-grid-supply-points-overview@ukpowernetworks
    Source
    UK Power Networks Open Data Portal
    Downloads
    1,064
    Themes
    Network Infrastructure
    License
    CC BY 4.0
    Language
    English
    Modified
    January 31, 2025 2:13 PM
    Publisher
    UK Power Networks, Company number 3870728
    Last processing
    March 19, 2025 2:39 PM (metadata)
    January 31, 2025 2:13 PM (data)

    Semantic Metadata

    INSPIRE

    DCAT

    Dublin Core

    Subject
    Grid Supply Point, Substation, Extra High Voltage, EHV
    Type
    Dataset
    Language
    English
    Spatial Coverage
    EPN= Eastern Power Networks; LPN= London Power Networks; SPN= South Eastern Power Networks
    Relation
    https://ukpowernetworks.opendatasoft.com/explore/dataset/ukpn-grid-supply-points-overview/information/; https://ukpowernetworks.opendatasoft.com/explore/dataset/ukpn-appendix-g-summary/information/; https://ukpowernetworks.opendatasoft.com/explore/dataset/ukpn-nodd-gsp-aggregated/information/
    Source
    https://ukpowernetworks.opendatasoft.com/; https://www.neso.energy/data-portal/gis-boundaries-gb-grid-supply-points
    Creator
    UK Power Networks, Company number 3870728
    Access Rights
    Open
    Date Issued
    July 15, 2024 11:00 PM
    Format
    application/json, text/csv, application/vnd.openxmlformats-officedocument.spreadsheetml.sheet

    DCAT-AP High Value Datasets (HVD)

    Attachments

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    Dataset schema

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    DNO
                   
    No description available for this field.
               
                   
                       
                                                      Name (identifier)                                                                         
    dno
                               		                   
                       
                                                      Type                                                                         
    text
                               		                   
                                          
                                                      Sample                                                                         
                               		                   
                   
           
       
           
    Site Functional Location
           
               
                   
                   
    No description available for this field.
               
                   
                       
                                                      Name (identifier)                                                                         
    floc
                               		                   
                       
                                                      Type                                                                         
    text
                               		                   
                                          
                                                      Sample                                                                         
                               		                   
                   
           
       
           
    Grid Supply Point (GSP)
           
               
                   
                   
    No description available for this field.
               
                   
                       
                                                      Name (identifier)                                                                         
    gsp
                               		                   
                       
                                                      Type                                                                         
    text
                               		                   
                                          
                                                      Sample                                                                         
                               		                   
                   
           
       
           
    Minimum Observed Power Flow
           
               
                   
    The Maximum and Minimum Power Flow comes from UK Power Networks' own analysis of the power flow through that GSP in the previous year.
                   
    No description available for this field.
               
                   
                       
                                                      Name (identifier)                                                                         
    minimum_observed_power_flow
                               		                   
                       
                                                      Type                                                                         
    decimal
                               		                   
                       
                                                      Unit                                                                         
    MW
                               		                   
                       
                                                      Sample                                                                         
                               		                   
                   
           
       
           
    Maximum Observed Power Flow
           
               
                   
    The Maximum and Minimum Power Flow comes from UK Power Networks' own analysis of the power flow through that GSP in the previous year.
                   
    No description available for this field.
               
                   
                       
                                                      Name (identifier)                                                                         
    maximum_observed_power_flow
                               		                   
                       
                                                      Type                                                                         
    decimal
                               		                   
                                          
                                                      Sample                                                                         
                               		                   
                   
           
       
           
    Asset Import Limit
           
               
                   
    The Asset Import Limit and Asset Export Limit is calculated based on the Supergrid transformer capacities available at the GSP, and are provided for indicative purposes only and may not reflect the actual capacity at the GSP.
                   
    No description available for this field.
               
                   
                       
                                                      Name (identifier)                                                                         
    asset_import_limit
                               		                   
                       
                                                      Type                                                                         
    text
                               		                   
                                          
                                                      Sample                                                                         
                               		                   
                   
           
       
           
    Asset Export Limit
           
               
                   
    The Asset Import Limit and Asset Export Limit is calculated based on the Supergrid transformer capacities available at the GSP, and are provided for indicative purposes only and may not reflect the actual capacity at the GSP.
                   
    No description available for this field.
               
                   
                       
                                                      Name (identifier)                                                                         
    asset_export_limit
                               		                   
                       
                                                      Type                                                                         
    integer
                               		                   
                                          
                                                      Sample                                                                         
                               		                   
                   
           
       
           
    Technical Limit Import Summer
           
               
                   
    This is the agreed limit between UKPN and NGESO for the allowed level of Summer import at this GSP before curtailment, in MW. This is May to August inclusive.
                   
    No description available for this field.
               
                   
                       
                                                      Name (identifier)                                                                         
    technical_limit_import_summer
                               		                   
                       
                                                      Type                                                                         
    text
                               		                   
                                          
                                                      Sample                                                                         
                               		                   
                   
           
       
           
    Technical Limit Import Winter
           
               
                   
    This is the agreed limit between UKPN and NGESO for the allowed level of Winter import at this GSP before curtailment, in MW. This is November to March inclusive.
                   
    No description available for this field.
               
                   
                       
                                                      Name (identifier)                                                                         
    technical_limit_import_winter
                               		                   
                       
                                                      Type                                                                         
    text
                               		                   
                                          
                                                      Sample                                                                         
                               		                   
                   
           
       
           
    Technical Limit Import Access Period
           
               
                   
    This is the agreed limit between UKPN and NGESO for the allowed level of import during the Access Period (week 13 - week 43) at this GSP before curtailment, in MW.
                   
    No description available for this field.
               
                   
                       
                                                      Name (identifier)                                                                         
    technical_limit_import_access_period
                               		                   
                       
                                                      Type                                                                         
    text
                               		                   
                                          
                                                      Sample                                                                         
                               		                   
                   
           
       
           
    Technical Limit Export
           
               
                   
    This is the agreed limit between UKPN and NGESO for the allowed level of export at this GSP before curtailment, in MW.
                   
    No description available for this field.
               
                   
                       
                                                      Name (identifier)                                                                         
    technical_limit_export
                               		                   
                       
                                                      Type                                                                         
    text
                               		                   
                                          
                                                      Sample                                                                         
                               		                   
                   
           
       
           
    Export Capacity Utilisation
           
               
                   
    The Export and Import Capacity Utilisation is calculated as a ratio of the maximum and minimum demand and the capacity at the GSP, which where possible is the technical limits and where not possible, the asset capacity.
                   
    No description available for this field.
               
                   
                       
                                                      Name (identifier)                                                                         
    export_capacity_utilisation
                               		                   
                       
                                                      Type                                                                         
    decimal
                               		                   
                       
                                                      Unit                                                                         
    %
                               		                   
                       
                                                      Sample                                                                         
                               		                   
                   
           
       
           
    Import Capacity Utilisation
           
               
                   
    The Export and Import Capacity Utilisation is calculated as a ratio of the maximum and minimum demand and the capacity at the GSP, which where possible is the technical limits and where not possible, the asset capacity.
                   
    No description available for this field.
               
                   
                       
                                                      Name (identifier)                                                                         
    import_capacity_utilisation
                               		                   
                       
                                                      Type                                                                         
    decimal
                               		                   
                       
                                                      Unit                                                                         
    %
                               		                   
                       
                                                      Sample                                                                         
                               		                   
                   
           
       
           
    Technical Limits Available
           
               
                   
    The Technical Limits Available field provides a status on whether this site has an agreed limit to manage customers on a curtailable-connection ahead of transmission reinforcements - green means Technical Limits are available, red means unavailable. Where available, the below table shows the limits applied.
                   
    No description available for this field.
               
                   
                       
                                                      Name (identifier)                                                                         
    technical_limits_available
                               		                   
                       
                                                      Type                                                                         
    text
                               		                   
                                          
                                                      Sample                                                                         
                               		                   
                   
           
       
           
    Geo Point
           
               
                   
                   
    No description available for this field.
               
                   
                       
                                                      Name (identifier)                                                                         
    geo_point_2d
                               		                   
                       
                                                      Type                                                                         
    geo point
                               		                   
                                          
                                                      Sample                                                                         
                               		                   
                   
           
       
    
                                
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                                    More about JSON schema.
                                
    
                                
       
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                  • "unit":"%"
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