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 February 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      61,806,780     4.15%      32,865,146     2.21%
securities
(2) Derivatives      299,940     0.02%       2,312,209     0.16%
(other than
options)
(3) Options and          125     0.00%              68     0.00%
agreements to
purchase/sell

Total             62,106,845     4.17%      35,177,423     2.36%


(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      6,501                7.7650
Purchase      32,912               7.7650
Purchase      28                   7.7507
Purchase      4,852                7.7650
Purchase      285,023              7.7524
Purchase      131,200              7.7325
Purchase      25,462               7.7642
Purchase      1,198                7.7666
Purchase      393,600              7.7689
Purchase      192                  Transfer
Purchase      1,305                7.7650
Purchase      518                  7.7569
Purchase      15,120               7.7650
Purchase      4,768                7.7650
Purchase      32,000               7.7708
Sale          992                  7.7400
Sale          11,248               7.7474
Sale          450                  7.7400
Sale          10,000               7.7600
Sale          1,900                7.7400
Sale          8,80                 7.7600
Sale          4,768                7.7650
Sale          550                  7.7400
Sale          18,900               7.7400
Sale          1,650                7.7400
Sale          1,00                 7.7400
Sale          700                  7.7400
Sale          799                  7.7417
Sale          500                  7.7367
Sale          1,150                7.7400
Sale          400                  7.7400
Sale          500                  7.7420
Sale          220                  7.7400
Sale          600                  7.7417
Sale          1,750                7.7400
Sale          550                  7.7400
Sale          900                  7.7400
Sale          1,750                7.7400
Sale          793                  7.7400
Sale          555                  7.7400
Sale          1,250                7.7400
Sale          700                  7.7400
Sale          380                  7.7400
Sale          470                  7.7400
Sale          1,900                7.7400
Sale          700                  7.7400
Sale          1,000                7.7417
Sale          1,800                7.7400
Sale          1,190                7.7400
Sale          800                  7.7400
Sale          324                  7.7650
Sale          2,000                7.7400
Sale          220                  7.7400
Sale          2,600                7.7400
Sale          830                  7.7400
Sale          550                  7.7400
Sale          1,650                7.7400
Sale          300                  7.7400
Sale          750                  7.7400
Sale          580                  7.7400
Sale          220                  7.7400
Sale          800                  7.7367
Sale          850                  7.7400
Sale          3,300                7.7400
Sale          500                  7.7400
Sale          1,190                7.7400
Sale          65,998               7.7661
Sale          250                  7.7400
Sale          800                  7.7400
Sale          750                  7.7400
Sale          2,100                7.7400
Sale          793                  7.7400


(b)  Derivatives transactions (other than options)

Product    Long/Short    Number of Securities  Price Per
name,      (Note 6)      (Note 7)              Unit (GBP)
e.g. CFD
CFD        Short         28                    7.7507
CFD        Short         25462                 7.7641
CFD        Short         1198                  7.7665
CFD        Short         32000                 7.7707
CFD        Long          11248                 7.7474
CFD        Long          18800                 7.7600
CFD        Long          65998                 7.7661


(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

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 February 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