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)
Date of dealing               03 July 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      40,918,362      3.96%    1,780,689       0.17%
securities
(2) Derivatives    1,385,724      0.13%      501,783       0.05%
(other than
options)
(3) Options and            0      0.00%            0       0.00%
agreements to
purchase/sell
Total             42,304,086      4.09%    2,282,472       0.22%


(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      1,851                6.9924
Purchase      3,775                7.1450
Purchase      1,501                6.9992
Purchase      1,434                6.9750
Purchase      2,845                6.9924
Purchase      6,233                6.9924
Purchase      3,936                6.9948
Purchase      1,434                6.9750
Purchase      3,873                7.0719
Purchase      1,434                6.9750
Purchase      4,745                7.0219
Purchase      6,479                7.0587
Purchase      1,217                7.0796
Purchase      2,572                6.9948
Purchase      8,523                6.9948
Purchase      16,612               7.0695
Purchase      215,840              7.0840
Purchase      6,147                7.0719
Purchase      1,434                6.9750
Purchase      1,116                7.1450
Purchase      349                  7.1090
Purchase      1,372                7.0750
Purchase      55,905               7.1450
Purchase      2,391                7.0643
Purchase      8,358                7.1450
Purchase      15,720               7.1450
Purchase      2,195                7.1150
Purchase      13,926               7.0719
Purchase      6,788                7.0945
Purchase      1,434                6.9948
Purchase      14,152               7.0587
Purchase      4,228                7.0587
Purchase      11,781               7.0777
Purchase      119,984              7.0660
Purchase      1,415                7.0719
Sale          117,851              7.0652
Sale          4,200                6.9988
Sale          91,191               7.0630
Sale          1,217                7.0189
Sale          142,090              7.0425
Sale          9,241                7.0734
Sale          27,925               7.0761
Sale          15,718               7.0839
Sale          7,007                7.0520
Sale          39,830               7.0562
Sale          4,745                7.0933

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          4200          6.9988
CFD            Long          1217          7.0188
CFD            Long          1487          7.0415
CFD            Long          142090        7.0425
CFD            Long          7007          7.052
CFD            Long          39830         7.0562
CFD            Long          91191         7.0629
CFD            Long          117851        7.0651
CFD            Long          9241          7.0734
CFD            Long          27925         7.0761
CFD            Long          15718         7.0838
CFD            Long          4745          7.0932
CFD            Long          1471          7.1465
CFD            Short         1501          6.9992
CFD            Short         4745          7.0219
CFD            Short         119984        7.0659
CFD            Short         16612         7.0695
CFD            Short         11781         7.0777
CFD            Short         1217          7.0795
CFD            Short         6788          7.0945
CFD            Short         55905         7.145

(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                         04 July 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