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  • Policies and Guidance

  • Here you will find a variety of electricity related policies, procedure and guidance notes on key topics, that aim to provide clear and consistent messages to our customers in relation to our connection activities. We have group these into catergories to help you navigate to the most pertinent areas.

  • User Commitment

    This provides a consistent methodology for Generation Customers to provide financial security for the transmission reinforcement works thier connection triggers and has been codified in Section 15 of the Connection and use of System Code (CUSC) as a result of CUSC Modification Proposal 192, 219, 222 & 223. These arrangements replace the Final Sums methodology and the Interim Generic User Commitment Methodology for Generation and Interconnector Customers. The Final Sums methodology continues to apply for the Demand Customers.

     

  • Interactivity

    This is where an offer for connection to a Customer due to be made would affect the terms of an offer for connection to a Customer that has already been made, which is reliant upon the completion of the same transmission reinforcement works. We have published guidance for managing interactive offers which will explain the process we would follow to allocate capacity in these circumstances.

  • Loss of Transmission Access Compensation

    On 24 January 2013, CUSC Modification Proposal 212 introduced a new process where Customers connected to the system who have lost access to the National Electricity Transmission System can make a claim for compensation within 30 calender days of such an incident taking place.

    For further guidance on the process and to view a form to submit a claim for compensation, please use the links below:

  • Useful Guidance

  • Useful Documents

    27 Jan 2017
    2017-18 Wider Cancellation Charge Statement
    261 KB

    18 Jan 2016
    Open Letter -Modification to User Commitment Methodology for distributed generation as a consequence of CMP223 Letter
    113 KB

    09 Nov 2015
    Guidance Note - Active Network Management v1 0
    390 KB

    30 Oct 2015
    Connection and Infrastructure Options Note (CION) Process Guidance Note - Issue 003
    498 KB

    25 Aug 2015
    Open letter on available grid capacity and connection dates
    122 KB

    19 Aug 2015
    Open Letter - Confirmation of Timeline for 'CMP213 Judicial Review Period'
    186 KB

    27 Jul 2015
    Open letter - Timeline for the opening of the 'CMP213 Judicial Review Period'
    127 KB

    12 Jun 2015
    Guidance Note - Design Variations for Onshore Generation Connections- Indicative Assessment of Restrictions
    627 KB

    01 May 2015
    Decision Letter - Interim Restrictions on Availability
    148 KB

    19 Mar 2015
    Open Letter - Interim Restrictions on Availability
    40 KB

    04 Mar 2015
    CION Process Guidance Note - Issue 002
    440 KB

    12 Mar 2015
    Summary of CION Process Review Consultation Responses (2)
    354 KB

    19 Feb 2015
    2015-16 Wider Cancellation Charge Statement Version 2
    297 KB

    03 Oct 2014
    Open Letter - CION Process Review
    932 KB

    23 Jun 2014
    Open Letter - charges associated with requests to delay connections
    88 KB

    30 May 2014
    Invitation to Stakeholder Workshop - Statement of Works - 30 May 2014
    70 KB

    14 May 2014
    National Grid letter regarding the Statement of Works Trial
    66 KB

    14 May 2014
    Small Embedded - Process Flow and Timescales - Final Version
    15 KB

    31 Jan 2014
    2014-15 Wider Cancellation Charge Statement
    266 KB

    05 Dec 2013
    Interim Process IC Consulation Final
    96 KB

    23 May 2013
    2012-13 Wider Cancellation Charge Statement
    83 KB

    23 May 2013
    2013-14 Wider Cancellation Charge Statement
    104 KB

    23 May 2013
    A Guide to Disconnection from the National Electricity Transmission System
    240 KB

    23 May 2013
    A Guide to Security Provision
    125 KB

    23 May 2013
    CMP192 Updated Guidance Document
    603 KB

    23 May 2013
    Connect and Manage - Updated Guidance
    262 KB

    23 May 2013
    Connect and Manage Guidance January 2011
    402 KB

    23 May 2013
    Connect and Manage Quarterly Report - August 2011
    503 KB

    23 May 2013
    Connect and Manage Quarterly Report 1st September 2012 - 31st December 2012
    615 KB

    23 May 2013
    CUSC Section 15 (CMP192) - Guidance and Implementation Document
    867 KB

    23 May 2013
    Final Sums Liabilities Consultation Responses
    16258 KB

    23 May 2013
    Free TEC Review Letter February 2013
    64 KB

    23 May 2013
    Implementation of Transmission Access Review (TAR)
    29 KB

    23 May 2013
    Interconnector User Guidance FAQs
    20 KB

    23 May 2013
    Interim Generic User Commitment Methodology in relation to Offshore Projects Letter dated 2nd July 2010
    309 KB

    23 May 2013
    Interim Generic User Commitment Methodology Statement Issue 17 July 2009
    266 KB

    23 May 2013
    Loss of Transmission Access Compensation - Guidance Note for Customers
    71 KB

    23 May 2013
    Loss of Transmission Access Compensation Claim Form
    1128 KB

    23 May 2013
    National Grid Guidance on Interim Connect and Manage Version 1_0 - June 2009
    103 KB

    23 May 2013
    National Grid response to SHE Transmission Update
    323 KB

    23 May 2013
    Open Letter on National Grid Guidance on Interim Connect and Manage - June 2009
    358 KB

    23 May 2013
    Policy Document for Managing Interactive Offers
    174 KB

    23 May 2013
    Quarterly Report Guidance
    215 KB

    23 May 2013
    Review Of Final Sums Liabilities Consultation
    859 KB

    23 May 2013
    Review of sharing arrangements for Final Sums Liabilities Letter dated 2nd July 2010
    48 KB

    23 May 2013
    TEC Review Letter
    309 KB

    23 May 2013
    Timely Connections Report
    249 KB

    23 May 2013
    User Commitment for Non-Generation Users
    120 KB

    23 May 2013
    Wider cancellation charge for CUSC section 15 (CMP192)
    35 KB