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               20 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       51,302,240      3.44%       46,259,371    3.11%
securities
(2) Derivatives       656,607      0.04%        3,519,652    0.24%
(other than
options)
(3) Options and             0      0.00%              325    0.00%
agreements to
purchase/sell
Total              51,958,847      3.49%       49,779,348    3.34%


(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           9,762              7.8400
Purchase          14,060              7.8050
Purchase         278,100              7.8050
Purchase             712              7.7860
Purchase          51,213              7.8358
Purchase          83,380              7.7941
Purchase          14,412              7.8400
Purchase           1,596              7.7866
Sale               2,000              7.8018
Sale             278,080              7.7951
Sale              24,186              7.8331
Sale               1,000              7.7868
Sale                 725              7.7718
Sale                 337              7.7820
Sale               1,715              7.7918
Sale                 436              7.7818
Sale             100,000              7.8546
Sale               2,801              7.7888
Sale             700,000              7.8437
Sale             700,000              7.8437
Sale               8,000              7.7900
Sale                 880              7.7913
Sale                 950              7.7768
Sale             700,000              7.8437
Sale              30,000              7.8437
Sale              14,356              7.8384
Sale               1,331              7.8400
Sale                 525              7.7768
Sale               2,000              7.7868
Sale              14,060              7.8050

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD             Short             712       7.7859
CFD             Short            1596       7.7865
CFD             Short           83380       7.794
CFD             Short           21213       7.8062
CFD             Short           30000       7.8567
CFD             Long             2801       7.7888
CFD             Long             8000       7.79
CFD             Long            24186       7.8331
CFD             Long            14356       7.8384
CFD             Long            30000       7.8437
Swap            Long          2077996       7.700

(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                         21 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