Holding(s) in Company

Scottish & Southern Energy PLC 15 March 2004 NOTIFICATION UNDER SECTION 198 TO 202 OF THE COMPANIES ACT 1985 Scottish and Southern Energy plc (the Company) was notified on 12 March 2004 that FMR Corp. and its direct and indirect subsidiaries, and Fidelity International Limited and its direct and indirect subsidiaries, both being non- beneficial holders, have a notifiable interest in 26,714,302 ordinary shares in the Company, being 3.11% of the issued share capital of the Company. The shares are registered as follows: Nominee/Registered Name Management Shares Company Held State Street Nominees Limited FMRCO 2,800 Chase Nominees Ltd. FMTC 320,200 BT Globenet Nominees Limited FMTC 87,200 State Street Bank & Trust FMTC 415,100 Mellon Bank FMTC 81,200 Bank of New York FMTC 1,200 JP Morgan FMTC 72,000 MSS Nominees Limited FMTC 105,800 Goldman Sachs and CO. FMTC 15,900 Northern Trust FMTC 16,400 Lloyds Bank Nominees Limited FMTC 462,700 Nortrust Nominees FMTC 31,900 Bank of New York - Europe FMTC 28,800 State Street Nominees Limited FMTC 695,300 Clydesdale Bank (Head Office) Nominees Ltd FISL 3,963,717 Chase Nominees Ltd FISL 1,141,025 Northern Trust FPM 116,700 Mellon Nominees Ltd FPM 244,600 Bank of New York London FPM 68,600 RBS Trust Bank FPM 89,000 Bankers Trust FPM 1,962,856 Nortrust Nominees Ltd FPM 147,800 BT Globenet Nominees Ltd FPM 30,000 Chase Nominees Ltd. FPM 1,568,531 Citibank FPM 61,900 Bank of New York Europe FPM 150,700 Nordea FPM 10,000 MSS Nominees Ltd FIL 2,423,600 Chase Nominees Ltd FIL 283,180 Nortrust Nominees Ltd FIL 1,012,090 Bankers Trust FIL 296,200 RBS Trust Bank FIL 1,261,993 BT Globenet Nominees Ltd FIL 238,830 NAB-Australia FIL 120,800 State Street Bank & Trust FIL 1,492,460 Citibank FIL 104,100 Bank of New York Europe FIL 949,200 Northern Trust FIL 944,377 National Australia Bank FIL 28,600 HSBC Client Holdings Nominee (UK)Ltd FIL 50,700 Chase Manhattan Bank London FIL 1,516,122 Bank of New York London FIL 2,418,723 JP Morgan FIL 1,425,500 Citibank FIL 6,800 Mellon Nominees Ltd FIL 25,300 Master Trust Bank of Japan FIL 10,700 Bank of New York Brussels FIL 69,400 PICG FIL 2,100 Chase Manhattan Bank AG Frankfurt FIL 38,100 ING Luxembourg FIL 9,298 Bermuda Far East FIL 11,100 State Street Hong Kong FIL 5,000 Bank of Bermuda FIL 74,300 Mitsubishi Trust FIL 3,800 This information is provided by RNS The company news service from the London Stock Exchange

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