Note 30 – Group undertakings and joint ventures

Principal Group undertakings

The principal Group undertakings included in the Group accounts at 31 March 2005 are listed below. These undertakings are wholly-owned and, unless otherwise indicated, are incorporated in Great Britain.

  Principal activity
Transco plc (i) Gas transportation
National Grid Company plc (i) Transmission of electricity in  England and Wales
New England Power Company (Incorporated in the US) (i) Transmission of electricity
Massachusetts Electric Company (Incorporated in the US) (i) Distribution of electricity
The Narragansett Electric Company (Incorporated in the US) (i) Distribution of electricity
Niagara Mohawk Power Corporation (Incorporated in the US) (i) Distribution and transmission of  electricity and gas
GridAmerica LLC (formed in the US) (i) Management of electricity  transmission assets
Gridcom (UK) Limited (i) Telecommunications infrastructure
Crown Castle UK Limited (i) Telecommunications and broadcast  infrastructure
NGG Finance plc (ii) Financing
British Transco International Finance B.V. (Incorporated in The Netherlands) (i) Financing
SecondSite Property Portfolio Limited (i) Property
National Grid Holdings One plc (ii) Holding company
Lattice Group plc (i) Holding company
National Grid USA (Incorporated in the US) (i) Holding company
Niagara Mohawk Holdings Inc. (Incorporated in the US) (i) Holding company
Lattice Group Holdings Limited (i) Holding company
Transco Holdings plc (i) Holding company
National Grid (US) Holdings Limited (ii) Holding company
National Grid Holdings Limited (i) Holding company
(i) Issued ordinary share capital held by Group undertakings.
(ii) Issued ordinary share capital held by National Grid Transco plc.
Principal joint ventures
(at 31 March 2005)
 
 
 
 
 
Group holding
Country of
incorporation
andoperation
 
 
Principal activity
Copperbelt Energy Corporation Plc (i)
38.5% ordinary shares
Zambia
Transmission, distribution and
supply of electricity
(i) 31 December year end.

The investments in joint ventures are held by Group undertakings.

A full list of all Group and associated undertakings is available from the Group Company Secretary and General Counsel.

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