Blocklisting Interim Review

Scottish & Southern Energy PLC
02 March 2007


                        BLOCK LISTING SIX MONTHLY RETURN


Information provided on this form must be typed or printed electronically.


To: The FSA FAX [phone]


Date: _1 March__2007__

AVS No:

Name of applicant:                       Scottish and Southern Energy plc

Name of scheme:                          Executive Share Option Scheme

Period of return:              From:     1 September 2006 To:   28 February 2007
                                         

Balance under scheme from
previous return:                                173,854

The amount by which the block scheme has
been increased, if the scheme has been
increased since the date of the last
return:

Number of securities
issued/allotted under
scheme during period:                           86,250

Balance under scheme not
yet issued/allotted at end
of period                                       87,604

Number and class of securities                  2,716,133 1 September 2005
originally listed and the date of
admission

Total number of securities
in issue at the end of the
period                                          861,906,111


Name of contact:                                Anne Sutherland

Address of contact:                             200 Dunkeld Road, Perth PH1 3AQ

Telephone number of contact:                    01738 455154


SIGNED BY ________Vincent Donnelly______________________________________

Director/company secretary/suitably experienced employee/duly authorised
officer,

for and on behalf of


________Scottish and Southern Energy plc_______________________________________

Name of applicant


If you knowingly or recklessly give false or misleading information you may be
liable to prosecution.


                        BLOCK LISTING SIX MONTHLY RETURN


Information provided on this form must be typed or printed electronically.


To: The FSA


Date: 1 March 2007__

AVS No:

Name of applicant:                       Scottish and Southern Energy plc

Name of scheme:                          SAYE Sharesave Scheme

Period of return:              From:     1 September 2006   To:    1 March 2007
                                         

Balance under scheme from
previous return:                                1,126,302

The amount by which the
block scheme has been
increased, if the scheme has
been increased since the
date of the last return:                        500,000

Number of securities issued/allotted
under scheme during period:

Balance under scheme not yet
issued/allotted at end of
period                                          1,471,077

Number and class of securities                  2,716,133 1 September 2005
originally listed and the date of
admission

Total number of securities
in issue at the end of the
period                                          861,906,111

Name of contact:                                Anne Sutherland

Address of contact:                             200 Dunkeld Road, Perth PH1 3AQ

Telephone number of contact:                    01738 455154


SIGNED BY _Vincent Donnelly_____________________________________________

Director/company secretary/suitably experienced employee/duly authorised
officer,

for and on behalf of


_Scottish and Southern Energy plc______________________________________________

Name of applicant


If you knowingly or recklessly give false or misleading information you may be
liable to prosecution.




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