Exhibit 8
Description of New National Grid plc
and Its Subsidiary Companies
As of March 31, 2002
1. National Grid Group plc | Public Limited | England & Wales | Holding Company |
1.1 National Grid (US) Holdings Ltd | Private Limited Company ("Priv. Ltd Co.") | England & Wales | Intermediate Holding Company |
1.1.1 National Grid (US) Investments 4 | unlimited company | England & Wales | Intermediate Holding Company |
1.1.1.1 National Grid (US) Partner 2 Ltd | Priv. Ltd Co. | England & Wales | Intermediate Holding Company |
1.1.1.2 National Grid Twelve Ltd | Priv. Ltd Co. | England & Wales | Special-Purpose Financing Vehicle |
1.1.1.2.1 National Grid Eight Ltd | Priv. Ltd Co. | England & Wales | Special-Purpose Financing Vehicle |
1.1.1.2.2 National Grid Eleven Ltd | Priv. Ltd Co. | England & Wales | Special-Purpose Financing Vehicle |
1.1.1.3 National Grid (US) Partner 1 Ltd | Priv. Ltd Co. | England & Wales | Intermediate Holding Company |
1.1.1.3.1 National Grid General Partnership | General Partnership | Delaware | Intermediate Holding Company |
1.1.1.3.1.1 National Grid US LLC | L.L.C. | Delaware | Special-Purpose Financing Vehicle |
1.1.1.3.1.2 NG Chicago 1 LLC | L.L.C. | Delaware | Inactive |
1.1.1.3.1.3 National Grid Holdings Inc. | Corporation | Delaware | Intermediate Holding Company |
1.1.1.3.1.3.1 National Grid Ten Limited | Priv. Ltd Co. | England & Wales | Special-Purpose Financing Vehicle |
1.1.1.3.1.3.2 NGG (Delaware) LLC | Limited Liability Corporation ("L.L.C.") | Delaware | Special-Purpose Financing Vehicle |
1.1.1.3.1.3.3 National Grid USA | Corporation | Delaware | Intermediate Holding Company |
1.1.1.3.1.3.3.1 Granite State Electric Company | Corporation | New Hampshire | Electric Public Utility |
1.1.1.3.1.3.3.2 Massachusetts Electric Company | Corporation | Massachusetts | Electric Public Utility |
1.1.1.3.1.3.3.3 Nantucket Electric Company | Corporation | Massachusetts | Electric Public Utility |
1.1.1.3.1.3.3.4 New England Power Company | Corporation | Massachusetts | Electric Public Utility |
1.1.1.3.1.3.3.4.1 Connecticut Yankee Atomic Power Co. | Corporation | Connecticut | Nuclear Plant Owner |
1.1.1.3.1.3.3.4.2 Maine Yankee Atomic Power Co. | Corporation | Maine | Nuclear Plant Owner |
1.1.1.3.1.3.3.4.3 Vermont Yankee Nuclear Power Corporation | Corporation | Vermont | Nuclear Plant Owner |
1.1.1.3.1.3.3.4.4 Yankee Atomic Electric Co. | Corporation | Massachusetts | Nuclear Plant Owner |
1.1.1.3.1.3.3.5 New England Hydro-Transmission Electric Company, Inc | Corporation | Massachusetts | Electric Transmission Utility |
1.1.1.3.1.3.3.6 New England Hydro-Transmission Corporation | Corporation | New Hampshire | Electric Transmission Utility |
1.1.1.3.1.3.3.6.1 New England Hydro Finance Company, Inc. | Corporation | Massachusetts | Finance Company |
1.1.1.3.1.3.3.7 New England Electric Transmission Corp. | Corporation | New Hampshire | Electric Transmission Utility |
1.1.1.3.1.3.3.8 The Narragansett Electric Company | Corporation | Rhode Island | Public Utility Company |
1.1.1.3.1.3.3.9 Wayfinder Group, Inc. | Corporation | Massachusetts | Utility Consulting, Energy-Related Company, Nonutility Holding Company |
1.1.1.3.1.3.3.9.1 NEWHC, Inc. | Corporation | Massachusetts | Inactive |
1.1.1.3.1.3.3.9.2 Monitoring Technology Corp. | Corporation | Delaware | Component Wear Technology Design and Manufacture |
1.1.1.3.1.3.3.9.3 Nexus Energy Software Inc. | Corporation | Massachusetts | Software/Marketing |
1.1.1.3.1.3.3.9.4 Separation Technologies Inc. | Corporation | Delaware | Ash Processing Equipment |
1.1.1.3.1.3.3.10 NEES Energy Inc. | Corporation | Massachusetts | Marketing |
1.1.1.3.1.3.3.10.1 AEMC, LLC | L.L.C. | Delaware | Inactive |
1.1.1.3.1.3.3.10.1.1 AEDR Fuels LLC | L.L.C. | Maine | Inactive |
1.1.1.3.1.3.3.11 EUA Energy Investment Corp. | Corporation | Massachusetts | Energy-Related Company, Nonutility Holding Company |
1.1.1.3.1.3.3.11.1 EUA Bioten, Inc. | Corporation | Massachusetts | Inactive |
1.1.1.3.1.3.3.11.2 Eastern Unicord Corp. | Corporation | Massachusetts | Inactive |
1.1.1.3.1.3.3.12 National Grid Transmission Services Corp. | Corporation | Massachusetts | Utility Consulting Services |
1.1.1.3.1.3.3.13 National Grid USA Service Company Inc. | Corporation | Massachusetts | Service Company |
1.1.1.3.1.3.3.14 NEES Communications, Inc. | Corporation | Massachusetts | Telecommunications Company |
1.1.1.3.1.3.3.14.1 Goddard GigaPoP LLC | L.L.C. | Delaware | Telecommunications Company |
1.1.1.3.1.3.3.14.2 NEES Telecommunications Corp | Corporation | Massachusetts | Inactive |
1.1.1.3.1.3.3.15 Metrowest Realty LLC | L.L.C. | Delaware | Real Estate Investment Company |
1.1.1.3.1.3.3.16 New England Energy Inc. | Corporation | Massachusetts | Inactive |
1.1.1.3.1.3.3.17 New England Wholesale Electric Company | Corporation | Massachusetts | Inactive |
1.1.1.3.1.3.3.18 Niagara Mohawk Holdings, Inc. | Corporation | New York | Intermediate Holding Company |
1.1.1.3.1.3.3.18.1 Niagara Mohawk Power Corporation | Corporation | New York | Electric & Gas Public Utility |
1.1.1.3.1.3.3.18.1.1 NM Properties, Inc. | Corporation | New York | Real Property Management |
1.1.1.3.1.3.3.18.1.1.1 Salmon Shores, Inc. | Corporation | New York | Real Estate Development Company |
1.1.1.3.1.3.3.18.1.1.2 Riverview, Inc. | Corporation | New York | Real Estate Development Company |
1.1.1.3.1.3.3.18.1.1.2.1 Riverview Galusha LLC | LLC | New York | Real Estate Development Company |
1.1.1.3.1.3.3.18.1.1.3 Landwest, Inc. | Corporation | New York | Real Estate Development Company |
1.1.1.3.1.3.3.18.1.1.4 Hudson Pointe, Inc. | Corporation | New York | Real Estate Development Company |
1.1.1.3.1.3.3.18.1.1.5 Upper Hudson Development Inc. | Corporation | New York | Real Estate Development Company |
1.1.1.3.1.3.3.18.1.1.6 Oprop Co., Inc. | Corporation | New York | Real Estate Development Company |
1.1.1.3.1.3.3.18.1.1.7 Moreau Park, Inc. | Corporation | New York | Real Estate Development Company |
1.1.1.3.1.3.3.18.1.1.8 Land Management & Development, Inc. | Corporation | New York | Real Estate Development Company |
1.1.1.3.1.3.3.18.1.1.8.1 Minoa Farms Development Co. LLC | LLC | New York | Real Estate Development Company |
1.1.1.3.1.3.3.18.1.1.8.2 Salmon Hills Cross Country Ski Resort LLC | LLC | New York | Invests in Ski Resorts |
1.1.1.3.1.3.3.18.1.1.8.3 Salmon Shores Partnership | Partnership | New York | Real Estate Development Company |
1.1.1.3.1.3.3.18.1.1.8.4 Second Street Associates, LLC | LLC | New York | Real Estate Development Company |
1.1.1.3.1.3.3.18.1.2 NM Uranium, Inc. | Corporation | Texas | Holds Investment in Uranium Mining |
1.1.1.3.1.3.3.18.1.3 HCE Pepperell, Inc. | Corporation | New York | Inactive |
1.1.1.3.1.3.3.18.1.4 NM Receivables Corp. II | Corporation | New York | Management Company for NM Receivables, L.L.C. |
1.1.1.3.1.3.3.18.1.5 NM Receivables LLC | L.L.C. | New York | Financing Subsidiary |
1.1.1.3.1.3.3.18.2 Opinac North America, Inc. | Corporation | Delaware | Intermediate Holding Company |
1.1.1.3.1.3.3.18.2.1 Opinac Energy Corp. | Corporation | Canada | Intermediate Holding Company |
1.1.1.3.1.3.3.18.2.1.1 Canadian Niagara Power Company LTD | Corporation | Ontario, Canada | Foreign Utility Company |
1.1.1.3.1.3.3.18.2.1.1.1 Canadian Niagara Power Inc. | Corporation | Ontario, Canada | Electric Utility |
1.1.1.3.1.3.3.18.2.1.1.2 Westario Power Holdings Inc. | Corporation | Ontario, Canada | Nonutility Holding Company |
1.1.1.3.1.3.3.18.2.1.1.2.1 Westario Power Inc. | Corporation | Ontario, Canada | Electric Distribution Utility |
1.1.1.3.1.3.3.18.2.1.1.2.2 Westario Power Services Inc. | Corporation | Ontario, Canada | Energy Related Marketing Company |
1.1.1.3.1.3.3.18.2.1.1.3 Rideau St. Lawrence Holdings Inc. | Corporation | Ontario, Canada | Nonutility Holding Company |
1.1.1.3.1.3.3.18.2.1.1.3.1 Rideau St. Lawrence Distribution, Inc. | Corporation | Ontario, Canada | Electric Distribution Company |
1.1.1.3.1.3.3.18.2.1.1.3.2 Rideau St. Lawrence Utilities Inc. | Corporation | Ontario, Canada | Service Company |
1.1.1.3.1.3.3.18.2.1.1.3.3 Rideau St. Lawrence Services Inc. | Corporation | Ontario, Canada | Service Company |
1.1.1.3.1.3.3.18.2.1.1.4 1161557 Ontario Inc. | Corporation | Ontario, Canada | Inactive |
1.1.1.3.1.3.3.18.2.2 Niagara Mohawk Energy, Inc. | Corporation | Delaware | Energy Marketing and Services Company |
1.1.1.3.1.3.3.18.2.2.1 Telergy Central LLC | L.L.C. | New York | Exempt Telecommunications Company |
1.1.1.3.1.3.3.18.2.2.2 Direct Global Power | Corporation | Delaware | Photovoltaics |
1.1.1.3.1.3.3.18.2.3 Telergy, Inc. | Corporation | New York | Exempt Telecommunications Company |
1.1.1.3.1.3.3.18.2.4 eVionyx, Inc. | Corporation | Delaware | Exempt Telecommunications Company |
1.2 National Grid Holdings One plc | plc | England & Wales | Holding Company |
1.2.1 National Grid Holdings Limited | Priv. Ltd Co. | England & Wales | Intermediate Holding Company |
1.2.1.1 National Grid Properties Ltd | Priv. Ltd Co. | England & Wales | Real Estate Development |
1.2.1.2 National Grid Nominees Ltd | Priv. Ltd Co. | England & Wales | Nominee Shareholder |
1.2.1.3 The National Grid Company plc | Priv. Ltd Co. | England & Wales | Electric Transmission Company |
1.2.1.3.1 NGC Leasing Ltd | Priv. Ltd Co. | England & Wales | Leasing Company |
1.2.1.3.2 Elexon Ltd | Priv. Ltd Co. | England & Wales | Non-profit Company required under the U.K. Electricity Regulatory Regime |
1.2.1.3.3 NG Property Developments Ltd. | Priv. Ltd Co. | England & Wales | Real Estate Development |
1.2.1.4 National Grid Four Ltd | Priv. Ltd Co. | England & Wales | Holding Company |
1.2.1.5 National Grid Jersey Holdings Five Limited | Priv. Ltd Co. | Jersey | Holding Company |
1.2.1.5.1 National Grid Three Ltd | Priv. Ltd Co. | England & Wales | Intermediate Holding Company |
1.2.1.5.1.1 NGG Telecoms Ltd | Priv. Ltd Co. | England & Wales | Intermediate Holding Company |
1.2.1.5.1.1.1 Energis plc | plc | England & Wales | Telecommunications Holding Company |
1.2.1.6 NGG Telecoms Investment Ltd | Priv. Ltd Co. | England & Wales | Holding Company |
1.2.1.7 National Grid Jersey Holdings Four Limited | Priv. Ltd Co. | Jersey | Holding Company |
1.2.1.7.1 Gridcom Limited | Priv. Ltd Co. | England & Wales | Telecommunications Company |
1.2.1.8 National Grid Jersey Holdings Three Limited | Priv. Ltd Co. | Jersey | Holding Company |
1.2.1.8.1 First Point Energy Corp. (formerly MyUtility, Inc.) | Corporation | Delaware | Energy Related Services |
1.2.1.9 National Grid (US) Investments | Priv. Unlimited Co. | England & Wales | Investment Company |
1.2.1.10 National Grid Gold Limited | Priv. Ltd Co. | England & Wales | Investment Company |
1.2.1.11 National Grid Insurance Limited | Priv. Ltd Co. | Guernsey | Captive Insurer |
1.2.1.12 National Grid Two Ltd | Priv. Ltd Co. | England & Wales | Financial Management Company |
1.2.1.13 National Grid Five Ltd | Priv. Ltd Co. | England & Wales | Intermediate Holding Company |
1.2.1.13.1 NatGrid Finance Holdings Ltd | Priv. Ltd Co. | England & Wales | Intermediate Holding Company |
1.2.1.13.1.1 NatGrid Finance Ltd | Priv. Ltd Co. | England & Wales | Financial Services Company |
1.2.1.13.1.1.1 NG Jersey Ltd | Priv. Ltd Co. | Jersey | Financial Services Company |
1.2.1.13.1.1.2 NG Investments Ltd | Priv. Ltd Co. | Jersey | Financial Services Company |
1.2.1.13.1.1.2.1 NatGrid Investments Ltd | Priv. Ltd Co. | England & Wales | Financial Services Company |
1.2.1.13.2 National Grid Two Ltd | Priv. Ltd Co. | England & Wales | Inactive |
1.2.1.13.2.1 The National Grid Investments Co. | Private Unlimited Co. | England & Wales | Inactive |
1.2.1.13.3 National Grid Six Ltd | Priv. Ltd Co. | England & Wales | Financial Services Company |
1.2.1.13.4 National Grid International Ltd | Priv. Ltd Co. | England & Wales | Intermediate Holding Company |
1.2.1.13.4.1 National Grid (Isle of Man) Ltd | Priv. Ltd Co. | Isle of Man (resident in England) | Holding Company |
1.2.1.13.4.2 National Grid Seven Ltd | Priv. Ltd Co. | England & Wales | Intermediate Holding Company |
1.2.1.13.4.2.1 National Grid Holdings BV | Priv. Ltd Co. | Netherlands | Holding Company |
1.2.1.13.4.2.1.1 National Grid Manquehue BV | Priv. Ltd Co. | Netherlands | Holding Company |
1.2.1.13.4.2.1.1.1 Manquehue Net S.A. | Priv. Ltd Co. | Chile | Holding Company |
1.2.1.13.4.2.1.1.1.1 Silica Net S.A. | Priv. Ltd Co. | Chile | Holding Company |
1.2.1.13.4.2.1.1.1.1.1 Inversiones Silica Networks | Priv. Ltd Co. | Chile | Intermediate Holding Company |
1.2.1.13.4.2.1.1.1.1.1.1 Silica Networks S.A. | Priv. Ltd Co. | Chile | Telecommunications Company |
1.2.1.13.4.2.1.2 National Grid Fourteen Ltd | Priv. Ltd Co. | England & Wales | Holding Company |
1.2.1.13.4.2.1.2.1 National Grid Chile BV | Priv. Ltd Co. | Netherlands | Holding Company |
1.2.1.13.4.2.1.2.1.1 SCC Uno S.A. | Priv. Ltd Co. | Chile | Holding Company |
1.2.1.13.4.2.1.2.1.1.1 SN Investment Argentina S.A. | Priv. Ltd Co. | Chile | Investment Company |
1.2.1.13.4.2.1.2.1.1.1.1 Silica Networks Argentina S.A. | Priv. Ltd Co. | Argentina | Telecommunications Company |
1.2.1.13.4.2.1.3 National Grid Finance BV | Priv. Ltd Co. | Netherlands | Holding Company |
1.2.1.13.4.2.1.3.1 Compania Inversora En Transmicion Electrica Citelec S.A. | Priv. Ltd Co. | Argentina | Holding Company |
1.2.1.13.4.2.1.3.1.1 Compania de Transporte de Energia Electrica en Alta Tension Transener S.A. | Priv. Ltd Co. | Argentina | Electric Transmission Company |
1.2.1.13.4.2.1.3.1.1.1 Empresa de Transporte de Energia Electrica por Distribucion Troncal de la Provincia de Buenos Airies Sociedad Anonima Transba S.A. | Priv. Ltd Co. | Argentina | Electric Transmission Company |
1.2.1.13.4.2.1.4 National Grid Brazil Finance | Unlimited liability company | England & Wales | Investment Company |
1.2.1.13.4.2.1.5 National Grid Reserve VIII BV | Priv. Ltd Co. | Netherlands | Business Development Vehicle |
1.2.1.13.4.2.1.6 National Grid Brazil BV | Priv. Ltd Co. | Netherlands | Holding Company |
1.2.1.13.4.2.1.6.1 JVCO Participacoes Ltda | Priv. Ltd Co. | Brazil | Telecommunications Company |
1.2.1.13.4.2.1.6.1.1 Holdco Participacoes Ltda | Priv. Ltd Co. | Brazil | Holding Company |
1.2.1.13.4.2.1.6.1.1.1 Intelig Telecomunicacoes Ltda | Priv. Ltd Co. | Brazil | Telecommunications Company |
1.2.1.13.4.2.1.7 National Grid Zambia BV | Priv. Ltd Co. | Netherlands | Holding Company |
1.2.1.13.4.2.1.7.1 Copperbelt Energy Corporation Plc | Plc | Zambia | Electricity Transmission Company |
1.2.1.13.4.2.1.8 National Grid Holland Ltd | Priv. Ltd Co. | England & Wales | Investment Company |
1.2.1.13.4.2.1.9 National Grid Poland BV | Priv. Ltd Co. | Netherlands | Holding Company |
1.2.1.13.4.2.1.9.1 Energis Polska Sp zo.o | Priv. Ltd Co. | Poland | Telecommunication Company |
1.2.1.13.4.2.1.9.1.1 CEL Polska Sp zo.o | Priv. Ltd Co. | Poland | Telecommunication Company |
1.2.1.13.4.3 National Grid Indus BV | Priv. Ltd Co. | Netherlands (resident in England) | Business Development Vehicle |
1.2.1.13.4.4 National Grid Overseas Ltd | Priv. Ltd Co. | England & Wales | Intermediate Holding Company |
1.2.1.13.4.4.1 National Grid Overseas Two Ltd | Priv. Ltd Co. | England & Wales | Intermediate Holding Company |
1.2.1.13.4.5 NG Procurement Holdings Limited | Priv. Ltd Co. | England & Wales | Intermediate Holding Company |
1.2.1.13.4.5.1 National Grid Procurement BV | Priv. Ltd Co. | Netherlands | Holding Company |
1.2.1.13.4.5.1.1 Eutilia NV | Public Company | Netherlands | Electronic Supplier of Utility Goods and Services |
1.2.1.13.4.6 National Grid Australia GP Pty Ltd | Priv. Ltd Co. | Australia | General Partner |
1.2.1.13.4.7 National Grid Australia LLP | Limited Liability Partnership | Australia | Holding Company |
1.2.1.13.4.7.1 National Grid Australia Pty Ltd | Priv. Ltd Co. | Australia | Holding Company |
1.2.1.13.4.7.1.1 Basslink Pty Ltd. | Priv. Ltd Co. | Australia | Developing Interconnector in Australia |
1.2.1.13.4.8 BritNed Development Ltd | Priv. Ltd Co. | England & Wales | Interconnection Development |
1.2.1.13.4.9 Network Mapping Limited | Priv. Ltd Co. | England & Wales | Aerial Line Surveying |
1.2.1.14 National Grid One Ltd | Priv. Ltd Co. | England & Wales | Investment Company |
1.2.1.15 EnMo Ltd | Priv. Ltd Co. | England & Wales | Gas Market Administrator |
1.2.1.16 NGG Telecoms Holdings Ltd. | Priv. Ltd Co. | England & Wales | Intermediate Holding Company |
1.2.1.17 National Grid (Ireland) 1 Limited | Priv. Ltd Co. | Luxembourg (Irish incorporated) | Intermediate Holding Company |
1.2.1.17.1 National Grid (Ireland) 2 Limited | Priv. Ltd Co. | Luxembourg (Irish incorporated) | Intermediate Holding Company |
1.2.1.17.1.1 National Grid Nine Ltd | Priv. Ltd Co. | England & Wales | Investment Company |
1.3 NGG Finance plc | Plc | England & Wales | Special Purpose Financing Company |