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               25 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      42,280,778      4.09%      733,945       0.07%
securities
(2) Derivatives      483,032      0.05%      878,846       0.09%
(other than
options)
(3) Options and            0      0.00%            0       0.00%
agreements to
purchase/sell
Total            42,763,810       4.14%    1,612,791       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      8,517                7.0813
Purchase      29,500               7.0800
Purchase      2,743                7.1000
Purchase      7,622                7.0800
Purchase      10,215               7.0900
Purchase      5,755                7.0679
Purchase      1,285                6.9163
Purchase      77,410               7.1214
Purchase      696                  7.0649
Purchase      2,700                7.0750
Purchase      36,200               7.0800
Purchase      25,340               7.0800
Purchase      6,674                7.0800
Purchase      1,346                6.9150
Purchase      10,512               7.0800
Sale          297,554              7.1144
Sale          1,285                7.0768
Sale          78,877               7.1201
Sale          4,080                7.0731
Sale          5,755                7.0719
Sale          59,916               7.1468

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          3340          7.0522
CFD            Long          4080          7.073
CFD            Long          1285          7.0767
CFD            Long          297554        7.1144
CFD            Long          78877         7.1201
CFD            Long          5584          7.1277
CFD            Long          59916         7.1467
CFD            Short         1285          6.9163
CFD            Short         2700          7.075
CFD            Short         2483          7.0786
CFD            Short         8517          7.0813
CFD            Short         2743          7.1
CFD            Short         77410         7.1213

(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                         26 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