Holding(s) in Company

Scottish & Southern Energy PLC
25 April 2005


NOTIFICATION UNDER SECTION 198 TO 202 OF THE COMPANIES ACT 1985

The Company was notified on 22 April 2005 that Barclays plc, through various
legal entities as listed below, has a notifiable interest in 33,002,425 ordinary
50p shares in Scottish and Southern Energy plc, being 3.84% of the issued share
capital of the company.

Legal Entity

Barclays Private Bank    2,040

Barclays Global Investors Japan Ltd 220,732

Barclays Life Assurance Co Ltd 955,668

Barclays Bank Trust company Ltd 31,537

Barclays Global Fund Advisors 1,901,446

Barclays Private Bank and Trust Ltd 450

Barclays Global Investors Australia Ltd 229,548

Barclays Global Investors Japan Trust & Banking 1,051,943

Gerrard Ltd 956,100

Barclays Private Bank and Trust Ltd 17,938

Barclays Global Investors Ltd 18,415,473

Barclays Global Investors, N.A. 9,127,843

Barclays Capital Securities Ltd 91,707

Group Holding 33,002,425



Registered Holder

Bank of Ireland 121,130

BARCLAYS CAPITAL NOMINEES LIMITED 91,707

Barclays Trust Co & Others 1,629

BARCLAYS TRUST CO AS EXEC/ADM 3,972

Barclays Trust Co DMC69 13,400

Barclays Trust Co R69 12,536

BNP PARIBAS 44,324

CHASE NOMINEES LTD 487,382

CHASE NOMINEES LTD 7,749,970

CHASE NOMINEES LTD 270,814

CIBC MELLON GLOBAL SECURITIES 25,699

Clydesdale Nominees HGB0125 2,920

Clydesdale Nominees HGB0125 1,270

Clydesdale Nominees HGB0125 4,230

Clydesdale Nominees HGB0125 6,660

Clydesdale Nominees HGB0125 1,640

Clydesdale Nominees HGB0125 1,218

INVESTORS BANK AND TRUST CO. 11,979

INVESTORS BANK AND TRUST CO. 163,680

INVESTORS BANK AND TRUST CO 1,515,000

INVESTORS BANK AND TRUST CO. 186,435

INVESTORS BANK AND TRUST CO 24,352

INVESTORS BANK AND TRUST CO 205,101

INVESTORS BANK AND TRUST CO. 170,272

INVESTORS BANK AND TRUST CO 1,235,579

INVESTORS BANK AND TRUST CO 9,602

INVESTORS BANK AND TRUST CO 1,166,627

INVESTORS BANK AND TRUST CO 230,987

INVESTORS BANK AND TRUST CO 11,997

INVESTORS BANK AND TRUST CO 4,346,775

INVESTORS BANK AND TRUST CO 434,226

JP MORGAN (BGI CUSTODY) 281,331

JP MORGAN (BGI CUSTODY) 53,555

JP MORGAN (BGI CUSTODY) 502,190

JP MORGAN (BGI CUSTODY) 104,488

JP MORGAN (BGI CUSTODY) 9,261,051

JP MORGAN (BGI CUSTODY) 14,104

JP MORGAN (BGI CUSTODY) 646,256

JP Morgan Chase Bank 9,214

JP Morgan Chase Bank 8,820

JP Morgan Chase Bank 59,837

JP Morgan Chase Bank 1,507

JP Morgan Chase Bank92,857

JP Morgan Chase Bank 184,123

JP Morgan Chase Bank 36,775

JP Morgan Chase Bank 7,168

JP Morgan Chase Bank 455,881

JP Morgan Chase Bank 115,429

JP Morgan Chase Bank 118,215

JP Morgan Chase Bank 9,431

JP Morgan Chase Bank 23,337

JP Morgan Chase Bank 8,727

JPMORGAN CHASE BANK 26,306

JPMORGAN CHASE BANK 145,247

JPMORGAN CHASE BANK 84,301

Mellon Trust - Boston & SF 66,521

Mellon Trust - Boston & SF 118,275

MELLON TRUST OF NEW ENGLAND 81,970

Mitsubishi Trust International 5,487

NORTHERN TRUST BANK - BGI SEPA 89,188

NORTHERN TRUST BANK - BGI SEPA 105,406

NORTHERN TRUST BANK - BGI SEPA 21,514

R C Greig Nominees Limited a/c 194,592

R C Greig Nominees Limited a/c 99,933

R C Greig Nominees Limited GP1 476,370

R C Greig Nominees Limited SA1 185,205

Reflex Nominees Limited 450

State Street 14,737

STATE STREET BOSTON 609,331

STATE STREET BOSTON 73,806

The Northern Trust Co 39,810

WELLS FARGO SEATTLE - WIRE BAN 14,527

ZEBAN NOMINEES LIMITED 2,040

        TOTAL33,002,425




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