Rule 8.3- (Scottish Power)

Barclays PLC
19 October 2005


                                                                        FORM 8.3


   DEALINGS BY PERSONS WHO OWN OR CONTROL 1% OR MORE OF ANY CLASS OF RELEVANT
                                    SECURITY
              (Rule 8.3 of The City Code on Takeovers and Mergers)

+-------------------------------------------------------------+----------------+
|Name of purchaser/vendor *                                   |BARCLAYS PLC    |
+-------------------------------------------------------------+----------------+
|Company dealt in                                             |SCOTTISH POWER  |
+-------------------------------------------------------------+----------------+
|Relevant security dealt in                                   |ORD GBP 0. 50   |
|                                                             |                |
+-------------------------------------------------------------+----------------+
|If a connected EFM, name of offeree/offeror with which       |                |
|connected                                                    |                |
|                                                             |                |
+-------------------------------------------------------------+----------------+
|If a connected EFM, nature of connection #                   |                |
|                                                             |                |
+-------------------------------------------------------------+----------------+
|Date of dealing                                              |18 OCTOBER      |
|                                                             |2005            |
+-------------------------------------------------------------+----------------+

DEALINGS +

Amount bought         Price per unit (currency must be stated)
            124,221                                                     5.7342
                  2                                                     5.7400



Amount sold           Price per unit (currency must be stated)
                163                                                     5.7306
                440                                                     5.7455
             34,438                                                     5.7375
            200,116                                                     5.7300
             14,571                                                     5.7324
             24,600                                                     5.7312
                  2                                                     5.7550

Resultant total amount and percentage of the same
relevant security owned or controlled                    87,369,544 (4.66%)


IS A SUPPLEMENTAL FORM 8 (DERIVATIVE)/FORM 8 (OPTION) ATTACHED? YES

Date of disclosure             19 OCTOBER 2005

Contact name                   BARCLAYS CORPORATE SECRETARIAT

Telephone number               0207 116 2913

* Specify the owner or controller in addition to the person dealing. The naming
of nominees or vehicle companies is insufficient. In the case of disclosure of
dealings by fund managers on behalf of discretionary clients, the clients need
not be named.
# See the definition of 'connected fund managers and principal traders' in the
Definitions Section of the Code.
+ If disclosing dealings/holdings in derivatives or options, please attach
Supplemental Form 8 (Derivative) or Supplemental Form 8 (Option), as
appropriate.

For details of the Code's dealing disclosure requirements, see Rule 8 and its
Notes which can be viewed on the Takeover Panel's website at
www.thetakeoverpanel.org.uk.

SUPPLEMENTAL FORM 8 (DERIVATIVE)


                        DEALINGS/HOLDINGS IN DERIVATIVES
  (This form should be attached to Form 8.1, Form 8.1(b)(ii), Form 8.2 or Form
                              8.3, as appropriate)

Description of all derivative products    CFD - A purchaser of a CFD will
disclosed on this form                    realise a gain if the price of the
                                          underlying security goes up. A seller
                                          of a CFD will realise a gain if the
                                          price of the underlying security goes
                                          down. The CFD contracts are open ended
                                          and there is no rollover into new
                                          contracts.
Full details of any agreement,            None
arrangement or understanding between the
person disclosing and any other person
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.

WRITING/ENTERING INTO A DERIVATIVE

Product Transaction Writing/entering Number of           Reference      Maturity
name    date        into (indicate   securities to which price          date
eg long             as applicable)   the derivative is   (currency must
CFD                                  referenced          be stated)


Long    18/10/      Written                 14,571         5.7324
CFD     2005

Long    18/10/      Written                 24,600         5.7312
CFD     2005

Long    18/10/      Written                      2         5.7550
CFD     2005

Short   18/10/      Written                124,221         5.7342
CFD     2005

Short   18/10/      Written                      2         5.7400
CFD     2005

CLOSING OUT A DERIVATIVE

Product Transaction Number of securities to Reference price   Closing out price
name    date        which the derivative is (currency must be (currency must be
                    referenced              stated)           stated)
eg long
CFD



FOR DETAILS OF OPEN DERIVATIVES, PLEASE SEE DISCLOSURE MADE ON 18 OCTOBER 2005



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