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  • Enhanced Frequency Response

    • Enhanced frequency response is defined by National Grid Electricity Transmission as being a service that achieves 100% active power output at 1 second (or less) of registering a frequency deviation.  This is in contrast with existing frequency response services of Primary and High which have timescales of 10 seconds, and Secondary which has timescales of 30 seconds.  This is a new service that is being developed to improve management of the system frequency pre-fault, i.e. to maintain the system frequency closer to 50Hz under normal operation.

      National Grid has procured 200MW of enhanced frequency response through the tendering exercise held in July 2016.  Results were published on 26th August and the list of tenders submitted can be found on the link on this page.

    •  
      Promo Panel
       
      Title:  Market Information Report
      Sub Title:
      Text:  
      This report summarises the tender process and lists the successful tenders.  A full list of all assessed tenders can be found in the document list below.
       
      Link to URL:   EFR MIR 2016
      This report summarises the tender process and lists the successful tenders. A full list of all assessed tenders can be found in the document list below.

      EFR MIR 2016
    •  
      Promo Panel
       
      Title:  June 2016 Seminar
      Sub Title:
      Text:  
      NGET hosted a seminar for pre-qualified parties on 2nd June 2016 to provide more information and answer questions on the proposed service
       
      Link to URL:   EFR Seminar June 2016
      NGET hosted a seminar for pre-qualified parties on 2nd June 2016 to provide more information and answer questions on the proposed service

      EFR Seminar June 2016
    •  
      Promo Panel
       
      Title:  Invitation to Tender
      Sub Title:
      Text:  
      This is the ITT pack for pre-qualified parties to the enhanced frequency response tender
       
      Link to URL:   EFR Invitation to Tender
      This is the ITT pack for pre-qualified parties to the enhanced frequency response tender

      EFR Invitation to Tender
  • As part of this event, we are publishing data files containing second by second frequency data for 2014 and 2015.  This data is being provided to support analysis of frequency response services by potential and existing providers.  If you have any comments or questions please contact commercial.operation@nationalgrid.com.
  • 26 Aug 2016
    EFR Full Results
    33 KB

    07 Jul 2016
    Clarification Request Tracker
    94 KB

    08 Jul 2016
    Collateral Deposit Deed v3
    38 KB

    08 Jul 2016
    EFR ITT v2.2 Compare
    5866 KB

    30 Mar 2016
    Enhanced Frequency Response FAQs v5_0
    711 KB

    22 Dec 2015
    Pre-qualified Publication
    191 KB

    23 Sep 2015
    Invitation for Expressions of Interest in Provision of Enhanced Frequency Response
    164 KB

    15 Apr 2016
    January 2015
    7571 KB

    15 Apr 2016
    Feb 2015
    6835 KB

    15 Apr 2016
    March 2015
    7591 KB

    18 Apr 2016
    April 2015
    7377 KB

    15 Apr 2016
    May 2015
    7727 KB

    15 Apr 2016
    June 2015
    7497 KB

    15 Apr 2016
    July 2015
    7700 KB

    15 Apr 2016
    August 2015
    7631 KB

    15 Apr 2016
    September 2015
    7399 KB

    15 Apr 2016
    October 2015
    7562 KB

    15 Apr 2016
    November 2015
    7337 KB

    15 Apr 2016
    December 2015
    7575 KB

    14 Sep 2015
    Jan 2014
    10127 KB

    14 Sep 2015
    f 2014 2
    9125 KB

    14 Sep 2015
    f 2014 3
    10136 KB

    14 Sep 2015
    f 2014 4
    9754 KB

    14 Sep 2015
    f 2014 5
    10107 KB

    14 Sep 2015
    f 2014 6
    9657 KB

    14 Sep 2015
    f 2014 7
    9957 KB

    14 Sep 2015
    f 2014 8
    9967 KB

    14 Sep 2015
    f 2014 9
    9750 KB

    14 Sep 2015
    f 2014 10
    10097 KB

    14 Sep 2015
    f 2014 11
    9716 KB

    14 Sep 2015
    f 2014 12
    9910 KB