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)     13 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     41,242,556        3.99%    1,266,789      0.12%
securities
(2) Derivatives     902,723        0.09%      156,981      0.02%
(other than
options)
(3) Options and           0        0.00%            0      0.00%
agreements to
purchase/sell
Total            42,145,279        4.08%    1,423,770      0.14%

(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      32,282               7.1183
Purchase      2,220                7.0650
Purchase      12,885               7.0650
Purchase      7,093                7.1075
Purchase      606                  7.0650
Purchase      7,230                7.0663
Purchase      11,813               7.1149
Purchase      12,885               7.0500
Purchase      3,338                7.0650
Purchase      5,300                7.1097
Purchase      300                  7.0750
Purchase      169,249              7.1035
Purchase      76,482               7.0802
Sale          10,360               7.0738
Sale          2,185                7.0639
Sale          12,885               7.0650
Sale          70,146               7.1021
Sale          12,885               7.0500
Sale          300                  7.0750
Sale          88,266               7.0881

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          2185          7.0638
CFD            Long          10360         7.0738
CFD            Long          300           7.075
CFD            Long          88266         7.0881
CFD            Long          70146         7.102
CFD            Short         7230          7.0663
CFD            Short         300           7.075
CFD            Short         76482         7.0802
CFD            Short         169249        7.1034
CFD            Short         5300          7.1097
CFD            Short         32282         7.1182

(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                         14 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