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.