Rule 8.3 - BRITISH ENERGY GROUP

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              BRITISH ENERGY GROUP
Class of relevant security    ORD GBP0.10
to which the dealings being
disclosed relate (Note 2)     06 August 2008

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     41,022,609        3.97%    1,475,581      0.14%
securities
(2) Derivatives   1,117,981        0.11%      165,348      0.02%
(other than
options)
(3) Options and           0        0.00%            0      0.00%
agreements to
purchase/sell
Total            42,140,590        4.08%    1,640,929      0.16%

(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      5,301                7.1061
Purchase      43,045               7.1450
Purchase      41,037               7.0375
Purchase      193,701              7.1367
Purchase      8,954                7.0555
Purchase      689                  7.1149
Purchase      70,380               7.0958
Purchase      500                  7.0700
Purchase      856                  7.1050
Purchase      86,089               7.1300
Purchase      696                  7.1050
Purchase      247,506              7.1150
Purchase      172,275              7.0809
Purchase      803                  7.0861
Purchase      1,500                7.0393
Purchase      696                  7.1050
Purchase      24,299               7.0883
Purchase      21,522               7.1300
Purchase      5,573                7.1019
Purchase      13,273               7.0950
Purchase      700                  7.1064
Purchase      43,045               7.1450
Sale          247,506              7.1150
Sale          1,415                7.1050
Sale          500                  7.0700
Sale          1,000,991            Transfer
Sale          35,306               7.0518
Sale          706                  7.0741
Sale          3,323                7.1234
Sale          73,916               7.1137
Sale          193,701              7.1367
Sale          78,512               7.1087
Sale          700                  7.1064
Sale          69,557               7.0962

NB: The below transactions which were previously disclosed have been cancelled
Deal Date          Purchase/Sale         Number of Securities         Price per unit (GBP)
05/08/2008         Purchase              3,400                        7.1351

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          35306         7.0517
CFD            Long          500           7.07
CFD            Long          706           7.0741
CFD            Long          69557         7.0962
CFD            Long          700           7.1064
CFD            Long          78512         7.1086
CFD            Long          73916         7.1137
CFD            Long          3323          7.1233
CFD            Short         41037         7.0375
CFD            Short         1500          7.0393
CFD            Short         8954          7.0554
CFD            Short         500           7.07
CFD            Short         172275        7.0808
CFD            Short         803           7.0861
CFD            Short         24299         7.0883
CFD            Short         13273         7.0949
CFD            Short         70380         7.0958
CFD            Short         5573          7.1018
CFD            Short         5301          7.1061
CFD            Short         700           7.1064
CFD            Short         689           7.1149

(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                         07 August 2008
Contact name                               Geoff Smith
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