Holding(s) in Company

Scottish & Southern Energy PLC 24 February 2005 NOTIFICATION UNDER SECTION 198 TO 202 OF THE COMPANIES ACT 1985 Scottish and Southern Energy plc (the Company) was notified on 23 February 2005 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 24,547,955 ordinary shares in the Company, being 2.86% of the issued share capital of the Company. The shares are registered as follows: Nominee/Registered Name Management Shares Company Held State Street Hong Kong FIA(K)L 13,100 Bank of New York Europe FII 822,851 Master Trust Bank of Japan FIJ 102,100 Nomura Trust and Banking FIJ 30,400 Trust & Cust Svcs Bk Ltd, Toko FIJ 26,230 Bank of New York Brussels FIL 69,000 Brown Bros Harrimn Ltd. FIL 89,124 Chase Manhttn Bk Ag Frnkfrt FIL 283,400 Citibank Na, Hong Kong Br FIL 20,800 Ing Luxembourg FIL 22,592 JP Morgan, Bournemouth FIL 388,957 National Astl Bk Melbourne FIL 429,153 Northern Trust London FIL 170,000 RBC Global Services FIL 208,100 State Str Bk and Tr Lndn FIL 218,760 State Street Bank Australia FIL 334,200 State Street T&B Co Ltd Tokyo FIL 33,000 Bermuda Trust Far East FIM HK 27,900 JP Morgan, Bournemouth FISL 6,461,644 Northern Trust FMRCO 110,400 State Street Bank and Tr Co FMRCO 7,100 Bank of New York FMTC 281,000 Brown Brothers Harriman and Co FMTC 1,222,900 CIBC Mellon Trust FMTC 200,921 JPMorgan Chase Bank FMTC 559,900 Mellon Bank N.A. FMTC 724,284 Northern Trust Co FMTC 1,296,738 Royal Trust - Toronto FMTC 24,300 State Street Bank and Tr Co FMTC 3,082,167 Bank of New York Brussels FPM 1,175,331 Bank of New York Europe FPM 89,900 Chase Manhattan London FPM 11,100 Chase Manhttn Bk Ag Frnkfrt FPM 79,600 Citibank London FPM 146,700 Clydesdale Bank plc FPM 91,000 Dexia Privatbank FPM 9,500 HSBC Bank Plc FPM 105,279 JP Morgan, Bournemouth FPM 1,084,831 Mellon Bank FPM 246,182 Nordea Bank AB FPM 25,600 Northern Trust London FPM 2,206,668 Societe Generale FPM 37,300 State Str Bk and Tr Co Lndn FPM 1,956,607 State Street Munich FPM 21,336 GRAND TOTAL 24,547,955 This information is provided by RNS The company news service from the London Stock Exchange

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