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               19 December 2006

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        64,025,077     4.30%      7,157,192    0.48%
securities
(2) Derivatives      2,065,378     0.14%      1,819,312    0.12%
(other than
options)
(3) Options and        895,625     0.06%        895,068    0.06%
agreements to
purchase/sell

Total               66,986,080     4.50%      9,871,572    0.66%


(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
Scottish Power Plc GBP                    (%)                       (%)
(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      10,080               Transfer
Purchase      11,252               7.4800
Purchase      15,120               Transfer
Purchase      5,744                7.4768
Purchase      5,626                7.4800
Purchase      23,327               7.4743
Purchase      3,076                7.4365
Purchase      57,694               7.4800
Purchase      23,200               7.4850
Purchase      80                   7.4865
Purchase      12,237               7.4750
Purchase      3,173                Transfer
Purchase      1,946                7.4750
Purchase      87,700               7.4720
Sale          14,770               Transfer
Sale          285                  7.4816
Sale          740                  7.4816
Sale          147                  7.4866
Sale          700                  7.4566
Sale          325                  7.4816
Sale          310                  7.4816
Sale          293                  7.4816
Sale          435                  7.4816
Sale          335                  7.4816
Sale          9,100                7.4814
Sale          1,000                7.4666
Sale          500                  7.4566
Sale          415                  7.4816
Sale          310                  7.4816
Sale          160                  7.4816
Sale          440                  7.4766
Sale          810                  7.4816
Sale          435                  7.4816
Sale          355                  7.4816
Sale          68,120               7.4791
Sale          535                  7.4816
Sale          34,972               7.4759
Sale          100                  7.4685
Sale          740                  7.4816
Sale          1,190                7.4718
Sale          510                  7.4816
Sale          147                  7.4975
Sale          130,000              7.4775
Sale          1,946                7.4750
Sale          340                  7.4816
Sale          315                  7.4816
Sale          850                  7.4666
Sale          315                  7.4816
Sale          625                  7.4566
Sale          630                  7.4816
Sale          360                  7.4816
Sale          570                  7.4766
Sale          147                  7.4866
Sale          410                  7.4816
Sale          3,076                7.4701

NB: The below transactions which were disclosed on 19/12/2006 have been cancelled
Purchase/Sale Number of Securities Price per unit (GBP)
Sale          147                  7.4866

(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        3076                  7.4364
CFD        Short        87700                 7.4719
CFD        Short        23327                 7.4742
CFD        Short        12237                 7.4750
CFD        Short        5744                  7.4767
CFD        Short        23200                 7.4850
CFD        Short        80                    7.4865
CFD        Long         100                   7.4685
CFD        Long         3076                  7.4700
CFD        Long         34972                 7.4759
CFD        Long         68120                 7.4791
CFD        Long         9100                  7.4814


(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                         20 December 2006
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