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               16 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      61,909,657     4.16%      32,791,055     2.20%
securities
(2) Derivatives      318,308     0.02%       2,324,725     0.16%
(other than
options)
(3) Options and          125     0.00%              68     0.00%
agreements to
purchase/sell

Total             62,228,090     4.18%      35,115,848     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          85,000              7.7750
Purchase          15,464              7.7650
Purchase             824              7.7400
Purchase          60,953              7.7650
Purchase          80,277              7.7669
Purchase           3,520              7.7650
Sale               2,142              7.7750
Sale                 460              7.7750
Sale                 830              7.7750
Sale                 545              7.7750
Sale                 750              7.7750
Sale                 450              7.7750
Sale               1,396              7.7750
Sale                 317              7.7750
Sale                 826              7.7750
Sale                 625              7.7567
Sale                   1              7.7600
Sale                 138              7.7750
Sale              46,761              7.7630
Sale               1,000              7.7750
Sale                 335              7.7750
Sale               2,401              7.7738
Sale                 545              7.7750
Sale                 146              7.7716
Sale              21,000              7.7716
Sale               1,230              7.7750
Sale                 890              7.7617
Sale              15,967              7.7642
Sale                 420              7.7567
Sale                 159              7.7750
Sale                 490              7.7750
Sale               3,015              7.7750
Sale                  51              7.7650
Sale                 700              7.7614
Sale                 330              7.7750
Sale                 780              7.7750
Sale                 360              7.7750
Sale               1,511              7.7700
Sale                 305              7.7750
Sale                 250              7.7750
Sale                 725              7.7750
Sale                 665              7.7750
Sale                 665              7.7750
Sale                 585              7.7750
Sale                 375              7.7750
Sale                 307              7.7750
Sale                 330              7.7750
Sale                 726              7.7750
Sale              15,464              7.7650
Sale                 240              7.7750
Sale                 750              7.7750
Sale               1,000              7.7617
Sale                 530              7.7750
Sale                 750              7.7750
Sale               8,200              7.7750
Sale                 650              7.7750
Sale                 499              7.7750
Sale               1,104              7.7667
Sale                 575              7.7614
Sale                 665              7.7750
Sale                 655              7.7750
Sale                 575              7.7617


(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         80277                   7.7668
CFD          Long          46761                   7.7629
CFD          Long          15967                   7.7641
CFD          Long          21000                   7.7716
CFD          Long           2401                   7.7738


(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                         19 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