Holding(s) in Company

Scottish & Southern Energy PLC
23 January 2006


Scottish and Southern Energy plc

Holding(s) in Company

23 January 2006


NOTIFICATION UNDER SECTION 198 TO 202 OF THE COMPANIES ACT 1985

The Company was notified on 20 January 2006 that Barclays plc, through various
legal entities as listed below, has a notifiable interest in 34,139,136 ordinary
50p shares in Scottish and Southern Energy plc, being 3.97% of the issued share
capital of the company.

                                                                   
        Legal Entity                                                   
        Barclays Global Investors Japan Trust & Banking    1,004,540   
        Barclays Global Fund Advisors                      2,253,377   
        Barclays Life Assurance Co Ltd                     1,750,632   
        Barclays Global Investors Canada Ltd                  46,638      
        Barclays Bank Trust Company Ltd                       36,174      
        Barclays Private Bank and Trust Ltd                    1,302       
        Barclays Global Investors Japan Ltd                  180,821     
        Gerrard Ltd                                        4,553,548   
        Barclays Capital Securities Ltd                      367,991     
        Barclays Private Bank and Trust Ltd                   13,378      
        Barclays Global Investors Ltd                     15,605,696  
        Barclays Global Investors, N.A.                    8,027,832   
        Barclays Global Investors Australia Ltd              297,207     
        Group Holding                                     34,139,136  
                                                                       
        Registered Holder                                              
        Bank of Ireland                                       71,487      
        Bank of Ireland                                       10,887      
        Bank of New York                                      60,622      
        Barclays Capital Nominees Limited                    -14,242     
        Barclays Capital Nominees Limited                    123,577     
        Barclays Capital Nominees Limited                    -36,462     
        Barclays Capital Nominees Limited                    304,718     
        Barclays Capital Securities Ltd                       -9,600      
        Barclays Capital Securities Ltd                       -9,600      
        Barclays Capital Securities Ltd                        9,600       
        Barclays Global Investors Canada                      46,638      
        Barclays Trust Co & Others                             5,065       
        Barclays Trust Co AS EXEC/ADM                             95          
        Barclays Trust Co DMC69                               13,400      
        Barclays Trust Co E99                                  2,478       
        Barclays Trust Co R69                                 15,136      
        BNP Paribas                                           17,532      
        Chase Nominees Ltd                                   463,676     
        Chase Nominees Ltd                                 5,373,159   
        Chase Nominees Ltd                                   212,631     
        Chase Nominees Ltd                                   270,096     
        Chase Nominees Ltd                                   108,637     
        CIBC Mellon Global Securities                         11,616      
        Clydesdale Nominees HGB0125                            1,270       
        Clydesdale Nominees HGB0125                            4,230       
        Clydesdale Nominees HGB0125                            6,660       
        Clydesdale Nominees HGB0225                            1,218       
        Gerrard Nominees Limited                                 360         
        Gerrard Nominees Limited                                 750         
        Gerrard Nominees Limited                                 400         
        Gerrard Nominees Limited                                 500         
        Gerrard Nominees Limited                                 780         
        Gerrard Nominees Limited                               1,500       
        Gerrard Nominees Limited                               1,750       
        Gerrard Nominees Limited                                 450         
        Gerrard Nominees Limited                               2,700       
        Gerrard Nominees Limited                               1,250       
        Gerrard Nominees Limited                               1,100       
        Gerrard Nominees Limited                               1,250       
        Gerrard Nominees Limited                                 550         
        Gerrard Nominees Limited                               1,500       
        Gerrard Nominees Limited                               2,700       
        Gerrard Nominees Limited                               1,500       
        Gerrard Nominees Limited                                 250         
        Gerrard Nominees Limited                               1,000       
        Gerrard Nominees Limited                                 450         
        Gerrard Nominees Limited                                 200         
        Greig Middleton Nominees Limited (GM1)               405,370     
        Greig Middleton Nominees Ltd (GM3)                    60,000      
        Greig Middleton Nominees (GM3)                       150,000     
        Investors Bank and Trust Co                              780         
        Investors Bank and Trust Co                              454         
        Investors Bank and Trust Co                          325,376     
        Investors Bank and Trust Co                          245,137     
        Investors Bank and Trust Co                           19,624      
        Investors Bank and Trust Co                          589,116     
        Investors Bank and Trust Co                          238,806     
        Investors Bank and Trust Co                        4,393,706   
        Investors Bank and Trust Co                          919,931     
        Investors Bank and Trust Co                           19,030      
        Investors Bank and Trust Co                           49,011      
        Investors Bank and Trust Co                            7,584       
        Investors Bank and Trust Co                           87,120      
        Investors Bank and Trust Co                            8,549       
        Investors Bank and Trust Co                          155,138     
        Investors Bank and Trust Co                          166,212     
        Investors Bank and Trust Co                        1,878,888   
        Investors Bank and Trust Co                          183,464     
        Investors Bank and Trust Co                           24,813      
        JP Morgan (BGI Custody)                              237,025     
        JP Morgan (BGI Custody)                               50,738      
        JP Morgan (BGI Custody)                              244,667     
        JP Morgan (BGI Custody)                              486,092     
        JP Morgan (BGI Custody)                              108,225     
        JP Morgan (BGI Custody)                               82,197      
        JP Morgan (BGI Custody)                              148,239     
        JP Morgan (BGI Custody)                            8,795,433   
        JP Morgan (BGI Custody)                               14,716      
        JP Morgan (BGI Custody)                              678,423     
        JPMorgan Chase Bank                                  122,300     
        JPMorgan Chase Bank                                    2,227       
        JPMorgan Chase Bank                                   43,618      
        JPMorgan Chase Bank                                  104,798     
        JPMorgan Chase Bank                                    8,213       
        JPMorgan Chase Bank                                    7,168       
        JPMorgan Chase Bank                                   13,532      
        JPMorgan Chase Bank                                   92,627      
        JPMorgan Chase Bank                                  116,125     
        JPMorgan Chase Bank                                    5,525       
        JPMorgan Chase Bank                                  464,807     
        JPMorgan Chase Bank                                   23,600      
        JPMorgan Chase Bank                                  215,803     
        JPMorgan Chase Bank                                   81,404      
        JPMorgan Chase Bank                                    8,773       
        JPMorgan Chase Bank                                   36,388      
        JPMorgan Chase Bank                                   15,420      
        JPMorgan Chase Bank                                   54,648      
        JPMorgan Chase Bank                                    5,489       
        JPMorgan Chase Bank                                   24,589      
        JPMorgan Chase Bank                                   27,317      
        Master Trust Bank                                     10,015      
        Mellon Trust - US Custodian                           28,323      
        Mellon Trust - US Custodian                           66,620      
        Mellon Trust of New England                           33,635      
        Mitsubishi Trust International                         4,131       
        Mitsui Asset                                          10,814      
        Northern Trust Bank - BGI SEPA                         9,720       
        Northern Trust Bank - BGI SEPA                        44,014      
        Northern Trust Bank - BGI SEPA                        37,653      
        R C Greig Nominees Limited                         2,590,616   
        R C Greig Nominees Limited a/c AK1                   667,529     
        R C Greig Nominees Limited a/c BL1                   130,487     
        R C Greig Nominees Limited a/c CM1                    69,167      
        R C Greig Nominees Limited GP1                       318,226     
        R C Greig Nominees Limited SA1                       141,213     
        Reflex Nominees Limited                                  852         
        Reflex Nominees Limited                                  450         
        State Street Bank & Trust - WI                       119,131     
        State Street Boston                                  480,117     
        State Street Trust of Canada                          13,201      
        Sumitomo TB                                            2,251       
        The Northern Trust Company - U                        18,969      
        Trust & Custody Services Bank                          8,303       
        Total                                             34,139,136  
 



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