Holding(s) in Company

Scottish & Southern Energy PLC
06 April 2006


Scottish and Southern Energy plc

Holding (s) in Company

6 April 2006

NOTIFICATION UNDER SECTION 198 TO 202 OF THE COMPANIES ACT 1985

The Company was notified on 5 April 2006 that The Capital Group Companies, Inc,
through various legal entities as listed below, has a notifiable interest in
34,435,518 ordinary 50p shares in Scottish and Southern Energy plc, being 4.00%
of the issued share capital of the company.


Legal Entity
Capital Guardian Trust Company                                       15,651,834
Capital International Limited                                        13,430,809
Capital International S.A.                                            1,987,900
Capital International, Inc                                              964,975
Capital Research and Management Company                               2,400,000

Registered Holder
State Street Nominees Limited                                         1,707,168
Bank of New York Nominees                                             1,102,700
Northern Trust                                                          156,700
Chase Manhattan Bank Australia Limited                                    5,300
Chase Nominees Limited                                                7,390,700
BT Globenet Nominees Ltd                                                338,900
Midland Bank plc                                                      1,369,200
Cede & Co                                                                55,500
Deutsche Bank Mannheim                                                    1,300
Bankers Trust                                                           601,200
Barclays Bank                                                            13,500
Brown Bros.                                                              81,540
Nortrust Nominees                                                     1,817,150
MSS Nominees Limited                                                     35,600
State Street Bank & Trust Co.                                            54,600
Citibank NA Toronto                                                      22,100
Deutsche Bank AG                                                          2,600
HSBC Bank plc                                                               100
Mellon Bank N.A.                                                         67,000
Roy Nominees Limited                                                     15,600
Mellon Nominees (UK) Limited                                            327,469
Bank One London                                                           3,000
HSBC                                                                     19,500
JP Morgan Chase Bank                                                    463,407
State Street Nominees Limited                                           135,500
Bank of New York Nominees                                             2,914,525
Northern Trust                                                        1,435,155
Chase Nominees Limited                                                2,798,000
Midland Bank plc                                                         82,900
Bankers Trust                                                            82,100
Barclays Bank                                                            67,700
Morgan Guaranty                                                         236,200
Nortrust Nominees                                                     1,860,700
MSS Nominees Limited                                                     34,100
State Street Bank & Trust Co.                                         1,187,229
Lloyds Bank                                                              25,600
Citibank NA Toronto                                                     370,400
Deutsche Bank AG                                                         67,900
Chase Manhattan Nominee Ltd                                              54,100
HSBC Bank plc                                                           860,400
Mellon Bank N.A.                                                        141,800
KAS UK                                                                   70,500
Bank One London                                                         147,300
HSBC                                                                      9,400
JP Morgan Chase Bank                                                     68,400
Raiffeisen Zentral Bank                                                 615,600
Fortis Bank                                                              13,100
Metzier Seel Sohn & Co.                                                  57,700
Nordea Bank                                                              76,700
Bayerische Hypo Und Vereinsbank AG                                       17,800
State Street Nominees Limited                                            14,200
Bank of New York Nominees                                                 9,500
Chase Nominees Limited                                                  442,300
Midlands Bank plc                                                        65,400
Barclays Bank                                                            13,000
Pictet & Cie, Geneva                                                     67,500
Nortrust Nominees                                                         9,900
Morgan Stanley                                                           11,600
J.P. Morgan                                                             870,500
State Street Bank and Trust Co                                           36,300
Lloyds Bank                                                              24,100
HSBC Bank plc                                                           235,300
Lombard Odier Et Cie, Geneva                                            154,400
Metzier Seel Sohn & Co                                                   15,000
Credit Suisse, Zurich                                                    18,900
State Street Nominees Limited                                           305,800
Bank of New York Nominees                                                96,275
Northern Trust                                                            5,500
Chase Nominees Limited                                                  316,100
Midland Bank plc                                                          6,900
Bankers Trust                                                            15,000
Nortrust Nominees                                                        92,500
State Street Bank & Trust Co.                                            19,200
Citibank                                                                  3,100
Citibank NA Toronto                                                      48,100
HSBC Bank plc                                                            42,500
JP Morgan Chase Bank                                                     14,000
Chase Nominees Limited                                                2,400,000



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