Rule 8.3 - SCOTTISH POWER PLC

FORM 8.3

    DEALINGS BY PERSONS WITH INTERESTS IN SECURITIES REPRESENTING 1% OR MORE
              (Rule 8.3 of the City Code on Takeovers and Mergers)


1.   KEY INFORMATION

Name of person dealing        BARCLAYS PLC
(Note 1)
Company dealt in              SCOTTISH POWER PLC
Class of relevant security    ORD GBP0.42
to which the dealings being
disclosed relate (Note 2)
Date of dealing               15 March 2007

2.   INTERESTS, SHORT POSITIONS AND RIGHTS TO SUBSCRIBE

(a)  Interests and short positions (following dealing) in the class of relevant
security dealt in (Note 3)

                            Long                     Short

                      Number       (%)         Number       (%)

(1) Relevant       53,060,075     3.56%    44,596,687      2.99%
securities
(2) Derivatives        75,169     0.01%     3,532,334      0.24%
(other than
options)
(3) Options and           125     0.00%           268      0.00%
agreements to
purchase/sell
Total              53,135,369     3.57%    48,129,289      3.23%


(b)  Interests and short positions in relevant securities of the company, other
     than the class dealt in (Note 3)

Class of                    Long                     Short
relevant
security:

                  Number              (%)   Number              (%)

(1) Relevant
securities

(2) Derivatives
(other than
options)

(3) Options and
agreements to
purchase/sell

Total


  (c)  Rights to subscribe (Note 3)

Class of relevant security:   Details



3.   DEALINGS (Note 4)

  (a)  Purchases and sales

Purchase/sale Number of Securities Price per unit
                                   (GBP)
Purchase      24,810               7.7300
Purchase      46,793               7.6978
Purchase      400,000              7.6491
Purchase      4,556                7.7300
Purchase      23,391               7.6909
Purchase      364,421              7.7081
Purchase      10,000               7.6200
Purchase      1,958                7.7300
Purchase      75,000               7.7016
Purchase      393,500              7.7287
Purchase      263                  7.6900
Purchase      37                   7.6962
Purchase      11,052               7.7300
Purchase      302                  7.7300
Purchase      11                   7.7009
Purchase      399                  Transfer
Sale          28,740               7.7122
Sale          1,725                7.6864
Sale          192                  7.6920
Sale          160                  7.6920
Sale          440                  7.6967
Sale          1,000                7.6917
Sale          1,370                7.6906
Sale          30,692               7.6922
Sale          390                  7.6917
Sale          2,000                7.6920
Sale          1,750                7.7067
Sale          1,319                7.6920
Sale          530                  7.6867
Sale          787                  7.7067
Sale          530                  7.6917
Sale          4,556                7.7300
Sale          400,000              7.6491
Sale          1,000                7.6856
Sale          800                  7.6920
Sale          911                  7.6968
Sale          2,000                7.6967
Sale          6,750                7.6917
Sale          595                  7.6917
Sale          750                  7.6920
Sale          758                  7.7300
Sale          500                  7.6917
Sale          1,500                7.6920
Sale          634                  7.6917
Sale          1,000                7.6920
Sale          293                  7.6920
Sale          475                  7.6967
Sale          192                  7.6920
Sale          1,984                7.6950
Sale          8,528                7.6913

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Short         99000         7.6878
CFD            Short         23391         7.6909
CFD            Short         37            7.6962
CFD            Short         46793         7.6977
CFD            Short         11            7.7009
CFD            Short         265421        7.7156
CFD            Long          8528          7.6912
CFD            Long          30692         7.6922
CFD            Long          28740         7.7122


(c)  Options transactions in respect of existing securities

(i)  Writing, selling, purchasing or varying

Product name,   Writing,          Number of          Exercise  Type, e.g.      Expiry   Option money
e.g. call       selling,          securities to      price     American,       date     paid/received
option          purchasing,       which the option             European etc.            per unit (GBP)
                varying etc.      relates (GBP)


(ii) Exercising

Product name, e.g.  Number of           Exercise price per
call option         securities          unit (Note 5)




(d)  Other dealings (including new securities) (Note 4)


Nature of transaction Details           Price per unit
(Note 8)                                (if applicable)
                                        (Note 5)




4.   OTHER INFORMATION
None

Agreements, arrangements or understandings relating to options or derivatives


Full details of any agreement, arrangement or understanding between the
person disclosing and any other person relating to the voting rights of
any relevant securities under any option referred to on this form or
relating to the voting rights or future acquisition or disposal of any
relevant securities to which any derivative referred to on this form is
referenced.  If none, this should be stated.




Is a Supplemental Form 8 attached? (Note 9)                 NO


Date of disclosure                         16 March 2007
Contact name                               BARCLAYS COMPLIANCE
Telephone number                           020 7116 2913
If a connected EFM, name of
offeree/offeror with which connected
If a connected EFM, state nature of
connection (Note 10)


Notes

The Notes on Form 8.3 can be viewed on the Takeover Panel's website at
www.thetakeoverpanel.org.uk