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               12 June 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      44,638,430       4.32%      147,591      0.01%
securities
(2) Derivatives      379,044       0.04%    1,178,953      0.11%
(other than
options)
(3) Options and            0       0.00%            0      0.00%
agreements to
purchase/sell
Total             45,017,474       4.35%    1,326,544      0.13%


(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      10,821               7.4128
Purchase      1,280                7.3164
Purchase      168,783              7.3700
Purchase      1,348                7.3700
Purchase      15,008               7.4126
Purchase      4,004                7.4039
Purchase      7,158                7.3508
Purchase      59,209               7.3785
Purchase      5,870                7.3813
Purchase      4,230                7.3386
Purchase      8,655                7.3700
Purchase      6,520                7.3700
Purchase      7,957                7.3843
Sale          1,300                7.4038
Sale          1,280                7.3320
Sale          34                   7.4162
Sale          483                  7.3400
Sale          3,200                7.4070
Sale          82,642               7.3695
Sale          1,376                7.4044
Sale          7,855                7.3686
Sale          53,356               7.3831
Sale          7,776                7.3700
Sale          293,245              7.3899

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          1280          7.332
CFD            Long          483           7.34
CFD            Long          7855          7.3685
CFD            Long          82642         7.3694
CFD            Long          8372          7.3709
CFD            Long          19019         7.3723
CFD            Long          53356         7.3831
CFD            Long          293245        7.3898
CFD            Long          1300          7.4038
CFD            Long          3200          7.407
CFD            Long          44759         7.4128
CFD            Short         1280          7.3163
CFD            Short         4230          7.3386
CFD            Short         7158          7.3508
CFD            Short         3074          7.3686
CFD            Short         56200         7.3769
CFD            Short         59209         7.3785
CFD            Short         5870          7.3812
CFD            Short         7957          7.3843
CFD            Short         15008         7.4126

(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                         13 June 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