National Grid ESO Phone Numbers and Emails

Customer Service:

  • +44 118 936 3000
    National Grid - Wokingham
  • +44 800 464 3621

Accounting/ Billing:

  • +44 192 665 4611
    Contracts Enquiries
  • +44 192 665 4613
    Payments and Invoices


  • +44 192 665 3400


  • +44 786 689 7151
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National Grid ESO Emails:

Business Customer Service
Contracts Enquiries
Customer Service
Connection and Use of System (CUSC), European Network Codes (ENC) Enquiries, Managing The Connection, Security, Security and Quality of Supply Standard (SQSS), System Operator Transmission Owner Code (STC) Enquiries
Press Inquiries
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Contact Information

National Grid ESO Website:

National Grid ESO Help Center:

Corporate Office Address:

National Grid ESO
Faraday House Warwick Technology Park Gallows Hill
Warwick, Warwickshire CV34 6DA
United Kingdom

Other Info (opening hours):

Other Locations:

Registered address

1 - 3 Strand

London, WC2N 5EH

National Grid ESO - London

179 Great Portland Street


London W1W 5PL

National Grid - Wokingham

St Catherine's Lodge

Bearwood Road


Nr Wokingham

Berkshire, RG41 5BN

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