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  • Electricity Transmission System Operations

  • These pages contain information on the operation and balancing of the National Electricity Transmission System.

    National Grid balances the system ensuring that supply and demand are balanced on a second by second basis, 24hours a day, 365 days a year.

    Normal operating frequency of the system is around 50hz, National Grid are obliged to maintain the system frequency between 49.5Hz and 50.5Hz, although normal operating limits of 49.8Hz to 50.2Hz normally apply.

    • Key Industry Information Websites

    • Further information can be found, by using the links below to key operational industry websites

       

      BMRS website (Elexon) - Balancing Mechanism half hourly data close to real-time

      Elexon website - Delivers the Balancing Settlement Code and longer term (e.g. 2-14 day, 2-52 week) market forecast data

      SONAR - Bulletin board for National Grid operational notifications   

       

    • Electricity Transmissional Operational Data

    • Click here to access the latest operational data via the Electricity Transmission Operational Data Portal including real time flow data

    •  
      Promo Panel
       
      Title:  Balancing Services
      Sub Title:
      Text:  
      National Grid is the GB Electricity industry’s Residual Balancer and procures Mandatory and Commercial Balancing Services to maintain system balance.
      
       
      Link to URL:   More Information
      National Grid is the GB Electricity industry’s Residual Balancer and procures Mandatory and Commercial Balancing Services to maintain system balance.

      More Information
    •  
      Promo Panel
       
      Title:  BSUoS
      Sub Title:
      Text:  
      Balancing Services Use of System Charges
      
      The costs National incurs in acting as the GB Residual Balancer are distributed across the industry
       
      Link to URL:   More Information
      Balancing Services Use of System Charges The costs National incurs in acting as the GB Residual Balancer are distributed across the industry

      More Information
    •  
      Promo Panel
       
      Title:  MBSS
      Sub Title:
      Text:  
      To view the latest Monthly Balancing Services Summary report 
       
      Link to URL:   click here
      To view the latest Monthly Balancing Services Summary report

      click here
    •  
      Promo Panel
       
      Title:  Network Access
      Sub Title:
      Text:  
      To view our (Network Access) Outage Management pages
       
      Link to URL:   click here
      To view our (Network Access) Outage Management pages

      click here
    •  
      Promo Panel
       
      Title:  Balancing Frameworks
      Sub Title:
      Text:  
      Click here to see the latest Balancing Frameworks
       
      Link to URL:   here
      Click here to see the latest Balancing Frameworks

      here
    •  
      Promo Panel
       
      Title:  Winter and Summer Outlook Reports
      Sub Title:
      Text:  
      To view the latest Winter and Summer Outlook Reports
       
      Link to URL:   click here
      To view the latest Winter and Summer Outlook Reports

      click here