National Grid plc

This article is about the energy company. For the electric power transmission network, see National Grid (Great Britain).
National Grid plc
Public limited company
Traded as
Industry Utilities
Founded 1990 (1990)
Headquarters Warwick, United Kingdom
Key people
Sir Peter Gershon (Chairman)
John Pettigrew (Chief Executive)
Products Electricity transmission
Gas distribution and transmission
Revenue £15,201 million (2015)[1]
£3,780 million (2015)[1]
£2,011 million (2015)[1]
Number of employees
24,274 (2015)[1]
A National Grid van working in central England

National Grid plc is a British multinational electricity and gas utility company headquartered in Warwick, United Kingdom. Its principal activities are in the United Kingdom and Northeastern United States.

National Grid has a primary listing on the London Stock Exchange and is a constituent of the FTSE 100 Index. It had a market capitalisation of approximately £40.4 billion on 23 September 2016, the 20th-largest of any company with a primary listing on the London Stock Exchange.[2] It has a secondary listing on the New York Stock Exchange.


Background (CEGB before 1990)

Before 1990, both the generation and transmission activities in England and Wales were under the responsibility of Central Electricity Generating Board (CEGB). The present electricity market in the UK was built upon the breakup of the CEGB into four separate companies in the 1990s. Its generation (or upstream) activities were transferred to three generating companies—PowerGen, National Power, and Nuclear Electric (later British Energy, eventually EDF Energy)—and its transmission (or downstream) activities to the National Grid Company.[3]

National Grid and acquisitions (1990-2000)

In 1990, the transmission activities of the CEGB were transferred to the National Grid Company plc, which was owned by the 12 regional electricity companies (RECs) through a holding company, National Grid Group plc. The company was first listed on the London Stock Exchange in 1995.[4]

With the beginning of the new millennium, National Grid pursued some major mergers and acquisitions. In 2000, National Grid Group acquired New England Electric System and Eastern Utilities Associates.[5] In January 2002, National Grid Group acquired Niagara Mohawk Power Corporation, a New York State utility.[6]

In October 2002, National Grid Group merged with Lattice Group plc, owner of Transco—the UK gas distribution business (Lattice demerged from BG Group in 2000).[7] National Grid Group changed its name to National Grid Transco plc.[8]

Expansion and consolidation (2000-present)

In 2004, National Grid Transco agreed to sell four of its regional gas distribution networks. The total cash consideration was £5.8 billion. NGT kept ownership of other four distribution networks, which comprise almost half of Great Britain's gas distribution network.[9]

In 2005, National Grid Transco was renamed National Grid plc. On 26 July 2005, National Grid Company was renamed National Grid Electricity Transmission plc, and on 10 October 2005, Transco was renamed National Grid Gas plc.[10]

In February 2006, National Grid announced that it had agreed to buy KeySpan Corporation,[11] a gas distributor and electricity producer in the United States, for $7.3bn (£4.1bn) in cash. Around the same time, National Grid also announced the acquisition of the Southern Union Company subsidiary, New England Gas Company in Rhode Island.[12] The acquisitions of the two natural gas delivery companies materially doubled the size of National Grid's American subsidiary, creating the second largest utility in the United States with more than 8 million customers. The acquisition of KeySpan was completed on 24 August 2007 following government and regulatory approval and endorsement by the shareholders of the two companies.[13]

In May 2007, National Grid formed a joint venture with the Dutch transmission operator TenneT for a 260-kilometre (160 mi) 1,000 MW BritNed DC link between the Isle of Grain in Kent and Maasvlakte, near Rotterdam.[14][15] The installation of the first section of cable link started on 11 September 2009,[16] whilst the entire 260 km (160 mi) cable was completed in October 2010.[17] The interconnection became operational on 1 April 2011,[18][19] and by January 2012, electricity flow had mostly been from the Netherlands to the UK.[20] The BritNed interconnection would serve as a vital link for the foreseeable European super grid project.[21]

In November 2015, it was announced that Steve Holliday, the CEO for ten years, would leave in March 2016, and that John Pettigrew, its UK executive director who joined National Grid 25 years ago, would succeed him.[22]

In June 2016 the Energy Select Committee argued that the company faced too many conflicts of interest, particularly with regard to its ownership of international interconnectors. The committee proposed that the company should be split up.[23]


United Kingdom

United States

See also


  1. 1 2 3 4 "Annual Report 2015" (PDF). National Grid plc. Retrieved 25 March 2016.
  2. "Telegraph Share Indices". Retrieved 4 August 2014.
  3. "A whole world sold on sell-offs". The Guardian. 22 November 2000. Retrieved 26 March 2016.
  4. "NATIONAL GRID Share Price - NG.L- Yahoo! UK & Ireland Finance". Yahoo! Finance. Retrieved 21 March 2015.
  5. "Another US buy for National Grid". BBC News. 26 January 1999. Retrieved 18 April 2011.
  6. "National Grid acquires Niagara Mohawk". Retrieved 18 April 2011.
  7. Barker, Sophie (23 April 2002). "Grid and Lattice form utility supergroup". The Daily Telegraph. UK. Retrieved 18 April 2011.
  8. "From Transco (Part of BG Plc) to National Grid". Gas Archive. Retrieved 26 March 2016.
  9. "National Grid Transco sells four gas pipelines". CBS. 31 August 2004. Retrieved 25 March 2016.
  10. "History". National Grid.
  11. "National Grid – Keyspan Merger Provides New Savings And Expanded Resources To New Hampshire Customers". 27 February 2006. Retrieved 18 April 2011.
  12. "Electric Utility buying Rhode Island Gas Company". 17 February 2006. Retrieved 18 April 2011.
  13. "National Grid buy US gas company". BBC News. 27 February 2006. Retrieved 18 April 2011.
  14. "BritNed Submarine HVDC Cable To Connect UK And The Netherlands", Power Online, retrieved 2 October 2008
  15. Fineren, Daniel (22 May 2007). "New cable to link UK and Dutch power grids". Reuters. Retrieved 26 September 2009.
  16. Hornby, Catherine (11 September 2009). "Dutch-UK marine power cable laying starts". Reuters. Retrieved 26 September 2009.
  17. "Global Marine Systems Completes Power Connection Between the Netherlands and the UK" (PDF) (Press release). Global Marine Systems. 27 October 2010. Retrieved 13 January 2011.
  18. Paulsson, Lars (24 February 2011). "Dutch, U.K. Regulators Approve Britned Power Cable Trading". Bloomberg. Retrieved 11 March 2011.
  19. "BritNed cable electrically connects United Kingdom and the Netherlands" (Press release). TenneT. 1 April 2011. Retrieved 1 April 2011.
  20. Justin Wilkes et al. The European offshore wind industry: key 2011 trends and statistics. European Wind Energy Association, January 2012. p. 22. Accessed: 26 March 2012.
  21. "Why Do We Need The Supergrid, What Is Its Scope And What Will It Achieve?". Claverton Energy Group. 19 June 2009. Retrieved 24 July 2011.
  22. "National Grid chief to step down". The Guardian. 3 November 2015. Retrieved 3 November 2015.
  23. Kiran Stacey (17 June 2016). "National Grid should be broken up, say MPs". Financial Times. Retrieved 19 June 2016.
  24. "What we do in the Electricity Industry". National Grid. Retrieved 26 March 2016.
  25. 1 2 Turner, Greg (4 December 2007). "National Grid to settle in Waltham". The Waltham News Tribune. Waltham, Massachusetts: GateHouse Media, Inc. Archived from the original on 25 July 2016. Retrieved 25 July 2016.
  26., Jillian. "National Grid will leave NH". The Eagle Tribune. Archived from the original on 5 July 2016.
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