Holding(s) in Company

Scottish & Southern Energy PLC
21 September 2004


NOTIFICATION UNDER SECTION 198 TO 202 OF THE COMPANIES ACT 1985

The Company was notified on 20 September 2004 that Barclays plc, through various
legal entities as listed below, has a notifiable interest in 26,292,551 ordinary
50p shares in Scottish and Southern Energy plc, being 3.06% of the issued share
capital of the company.

Legal Entity
Barclays Global Investors Australia Ltd            202,475
Barclays Bank Trust Company Ltd                     27,066
Barclays Private Bank and Trust Ltd                    450
Barclays Life Assurance Co Ltd                   1,098,328
Barclays Global Investors, N.A.                  7,528,599
Barclays Private Bank Ltd                           66,424
Barclays Global Investors Japan Trust & Banking    899,003
Barclays Private Bank and Trust Ltd                 10,925
Barclays Global Investors Japan Ltd                180,065
Gerrard Ltd                                      1,528,544
Barclays Global Investors Ltd                   13,199,658
Barclays Capital Securities Ltd                    149,588
Barclays Global Fund Advisors                    1,401,426
                Group Holding                   26,292,551



Registered Holder
Bank of Ireland                                    153,530
BARCLAYS CAPITAL NOMINEES LIMITED                  149,588
Barclays Trust Co & Others                           2,671
Barclays Trust Co DMC69                             16,605
Barclays Trust Co R69                                7,790
CHASE NOMINEES LTD                                 470,582
CHASE NOMINEES LTD                               4,227,357
CHASE NOMINEES LTD                                 273,474
Clydesdale Nominees HGB0125                          2,920
Clydesdale Nominees HGB0125                          1,640
Clydesdale Nominees HGB0125                          4,230
Clydesdale Nominees HGB0125                          1,135
Clydesdale Nominees HGB0125                          1,000
INVESTORS BANK AND TRUST CO.                     1,231,084
INVESTORS BANK AND TRUST CO                      4,077,097
INVESTORS BANK AND TRUST CO                         61,796
INVESTORS BANK AND TRUST CO                        204,659
INVESTORS BANK AND TRUST CO                        114,570
INVESTORS BANK AND TRUST CO                        188,862
INVESTORS BANK AND TRUST CO                         10,785
INVESTORS BANK AND TRUST CO                        386,829
INVESTORS BANK AND TRUST CO                        133,168
INVESTORS BANK AND TRUST CO                          9,937
INVESTORS BANK AND TRUST CO                        140,065
INVESTORS BANK AND TRUST CO                         23,626
INVESTORS BANK AND TRUST CO                         10,006
INVESTORS BANK AND TRUST CO                        204,546
INVESTORS BANK AND TRUST CO                      1,023,183
JP MORGAN (BGI CUSTODY)                            218,089
JP MORGAN (BGI CUSTODY)                             55,586
JP MORGAN (BGI CUSTODY)                             74,084
JP MORGAN (BGI CUSTODY)                            580,544
JP MORGAN (BGI CUSTODY)                            104,488
JP MORGAN (BGI CUSTODY)                             17,998
JP MORGAN (BGI CUSTODY)                             33,435
JP MORGAN (BGI CUSTODY)                          7,779,716
JP MORGAN (BGI CUSTODY)                             14,104
JP MORGAN (BGI CUSTODY)                            448,529
JPMORGAN CHASE BANK                                 25,709
JP Morgan Chase Bank                                 3,371
JP Morgan Chase Bank                                36,775
JP Morgan Chase Bank                                15,311
JP Morgan Chase Bank                               103,160
JP Morgan Chase Bank                               413,352
JP Morgan Chase Bank                                 7,168
JP Morgan Chase Bank                               104,042
JP Morgan Chase Bank                                23,337
JP Morgan Chase Bank                                25,025
JP Morgan Chase Bank                                61,938
JP Morgan Chase Bank                                 8,727
JP Morgan Chase Bank                                 9,213
JP Morgan Chase Bank                                90,955
JPMORGAN CHASE BANK                                 71,832
JPMORGAN CHASE BANK                                130,643
Mellon Trust - Boston & SF                         141,547      
Mitsubishi Trust International                       5,010
NORTHERN TRUST BANK - BGI SEPA                       5,387
NORTHERN TRUST BANK - BGI SEPA                      23,066
NORTHERN TRUST BANK - BGI SEPA                      33,155
R C Greig Nominees Limited a/c                     331,508
R C Greig Nominees Limited a/c                     167,415
R C Greig Nominees Limited GP1                     748,494
R C Greig Nominees Limited SA1                     281,127
State Street                                        18,154
STATE STREET BOSTON                                806,784
STATE STREET BOSTON                                 74,164
Swan Nominees Limited                                  450
ZEBAN NOMINEES LIMITED                              66,424
                            TOTAL               26,292,551



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