Private company

National Grid Electricity Distribution

Logo: nationalgrid.co.uk4

Brand used by British electricity distribution companies

Western Power Distribution is a trade name formerly used by four electricity distribution companies in the United Kingdom: WPD South West (operating in South West England), WPD South Wales (in South Wales) and WPD Midlands (two companies, in the East Midlands and West Midlands). Each company was the distribution network operator for its respective region.2 It is part of National Grid plc.1 Wikipedia text CC BY-SA 4.0

Last updated Oct 20, 2026.

Overview

1999Founded1
  • HeadquartersCardiff1
  • Websitewww.nationalgrid.co.uk
  • Legal formpublic limited company1
  • LEI549300HFCD0G1TPU4N093
  • StatusActive3
  • LEI statusIssued and current3
  • Registered addressAvonbank, BS2 0TB Bristol, United Kingdom3
  • Registered withCompanies House, 092233843

See how the biggest companies compare on our leaderboards

Eurocopter EC135P1 of Western Power Distribution (G-WPDD) leaves Bristol Airport, England 15Aug2016 arp
Photo: Myself ( Adrian Pingstone )., Public domain, via Wikimedia Commons5

Western Power Distribution is a trade name formerly used by four electricity distribution companies in the United Kingdom: WPD South West (operating in South West England), WPD South Wales (in South Wales) and WPD Midlands (two companies, in the East Midlands and West Midlands). Each company was the distribution network operator for its respective region.2

Corporate structure

National Grid Electricity Distribution is part of a group headed by National Grid plc. 30 entities, 2 countries on record. Switch between the flow chart and the network, and select any entity to see its details.

  • National Grid plc London, United Kingdom
    • National Grid Electricity Distribution London, United Kingdom
    • NATIONAL GRID NORTH AMERICA INC. Waltham, Massachusetts, United States
      • National Grid USA Waltham, Massachusetts, United States
        • KEYSPAN GAS EAST CORPORATION Subsidiary · Hicksville, New York, United States
        • MASSACHUSETTS ELECTRIC COMPANY Subsidiary · Waltham, Massachusetts, United States
        • NEW ENGLAND POWER COMPANY Subsidiary · Waltham, Massachusetts, United States
    • Niagara Mohawk Power Corporation Syracuse, New York, United States
    • National Grid US Subsidiary · New York City, United States
    • NESO Subsidiary
    • BOSTON GAS COMPANY Subsidiary · Waltham, Massachusetts, United States
    • BRITNED DEVELOPMENT LIMITED Subsidiary · London, United Kingdom
    • Fayette Solar, LLC Subsidiary · Bloomington, Minnesota, United States
    • GRAIN LNG LIMITED Subsidiary · London, United Kingdom
    • NATIONAL GRID (US) HOLDINGS LIMITED Subsidiary · London, United Kingdom
      • NATIONAL GRID (US) INVESTMENTS 4 LIMITED Subsidiary · London, United Kingdom
    • NATIONAL GRID ELECTRICITY DISTRIBUTION (EAST MIDLANDS) PLC Subsidiary · London, United Kingdom
    • NATIONAL GRID ELECTRICITY DISTRIBUTION (SOUTH WALES) PLC Subsidiary · London, United Kingdom
    • NATIONAL GRID ELECTRICITY DISTRIBUTION (SOUTH WEST) PLC Subsidiary · London, United Kingdom
    • NATIONAL GRID ELECTRICITY DISTRIBUTION (WEST MIDLANDS) PLC Subsidiary · London, United Kingdom
    • NATIONAL GRID ELECTRICITY DISTRIBUTION HOLDINGS LIMITED Subsidiary · London, United Kingdom
    • National Grid Electricity Transmission Subsidiary · United Kingdom
    • NATIONAL GRID HOLDINGS ONE PLC Subsidiary · London, United Kingdom
      • NATIONAL GRID CARBON LIMITED Subsidiary · London, United Kingdom
      • NATIONAL GRID ELECTRICITY SYSTEM OPERATOR LIMITED Subsidiary · London, United Kingdom
    • NATIONAL GRID IFA 2 LIMITED Subsidiary · London, United Kingdom
    • NATIONAL GRID PARTNERS LIMITED Subsidiary · London, United Kingdom
    • Ross County Solar, LLC Subsidiary · Bloomington, Minnesota, United States
    • THE BROOKLYN UNION GAS COMPANY Subsidiary · Brooklyn, New York, United States

Built from parent and subsidiary links from GLEIF, the Global Legal Entity Identifier Foundation (CC0); subsidiaries, stakes and holdings from Wikidata (CC0). Each entity in the chart links to its source.

Products and brands

  • electric power distribution

Listed on Wikidata.1

Subsidiaries and ownership

Parent company

Owners

Subsidiaries

  • National Grid Electricity Distribution (East Midlands) Plc
  • National Grid Electricity Distribution (South Wales) Plc
  • National Grid Electricity Distribution (South West) Plc
  • National Grid Electricity Distribution (West Midlands) Plc

From Wikidata.1

Timeline

  1. Jun 14, 2021Parent Directly consolidated by National Grid plc3
  2. 1999Founded Founded1

Sources

The numbers on this page point here. Each one links to the record it came from.

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5