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               18 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        64,042,291     4.30%      7,155,327    0.48%
securities
(2) Derivatives      2,070,087     0.14%      1,784,025    0.12%
(other than
options)
(3) Options and        895,625     0.06%        895,068    0.06%
agreements to
purchase/sell

Total               67,008,003     4.50%      9,834,420    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            38,722           7.4755
Purchase             1,094           7.4863
Purchase            66,000           7.5019
Purchase            15,120           Transfer
Purchase            68,120           7.4765
Purchase             2,002           7.4900
Purchase             3,418           7.4750
Purchase            24,228           7.4822
Purchase             1,731           7.4926
Sale                   565           7.4756
Sale                   565           7.4756
Sale                   300           7.5085
Sale                 1,369           7.4756
Sale                   665           7.4756
Sale                 1,904           7.4756
Sale                   630           7.4756
Sale                   645           7.4865
Sale                   776           7.4816
Sale                   500           7.4815
Sale                   490           7.4756
Sale                   535           7.4756
Sale                 1,094           7.4863
Sale                   505           7.4756
Sale                 1,369           7.4756
Sale                   550           7.4918
Sale                22,490           7.4927
Sale                   583           7.4756
Sale                 1,700           7.4816
Sale                   540           7.4756
Sale                   146           7.4756
Sale                 5,744           7.5335
Sale                   560           7.4723
Sale                 1,180           7.4863
Sale                   147           7.4866
Sale                   505           7.4756
Sale                   731           7.4800
Sale                 1,700           7.4918
Sale                   677           7.4756
Sale                   560           7.4756
Sale                 4,034           7.4914



(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         68120                 7.4764
CFD         Short         24228                 7.4821
CFD         Short         66000                 7.5019
CFD         Long          22490                 7.4927
CFD         Long            300                 7.5085
CFD         Long           5744                 7.5334

(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 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