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)     09 September 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      40,966,061       3.96%     1,427,476     0.14%
securities
(2) Derivatives    1,298,667       0.13%       200,084     0.02%
(other than
options)
(3) Options and            0       0.00%             0     0.00%
agreements to
purchase/sell
Total             42,264,728       4.09%     1,627,560     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      2,900                7.3060
Purchase      58,000               7.2425
Purchase      20,000               7.2000
Purchase      104,625              7.2932
Purchase      2,700                7.3350
Purchase      53,089               7.2479
Purchase      3,792                7.3714
Purchase      6,960                7.2011
Purchase      27,507               7.2522
Purchase      3,800                7.3350
Purchase      4,819                7.2000
Purchase      15,202               7.2000
Purchase      800                  7.2675
Purchase      4,052                7.3350
Sale          17,201               7.3350
Sale          4,052                7.3350
Sale          6,558                7.2754
Sale          2,900                7.3060
Sale          800                  7.2675
Sale          4,074                7.3641
Sale          2,700                7.3350
Sale          3,800                7.3350
Sale          6,500                7.2000
Sale          96,978               7.2925
Sale          5,634                7.3350
Sale          73,359               7.2681

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          800           7.2675
CFD            Long          73359         7.2681
CFD            Long          6558          7.2753
CFD            Long          772           7.2773
CFD            Long          96978         7.2924
CFD            Long          2900          7.306
CFD            Short         6960          7.201
CFD            Short         53089         7.2479
CFD            Short         27507         7.2521
CFD            Short         800           7.2675
CFD            Short         104625        7.2932
CFD            Short         2900          7.306

(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                         10 September 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