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)     11 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     41,542,540        4.02%    1,389,733      0.13%
securities
(2) Derivatives   1,033,909        0.10%      197,718      0.02%
(other than
options)
(3) Options and           0        0.00%            0      0.00%
agreements to
purchase/sell
Total            42,576,449        4.12%    1,587,451      0.15%

(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      72,163               7.0814
Purchase      172,179              7.0606
Purchase      6,775                7.0923
Purchase      56,077               7.0925
Purchase      64,567               7.0700
Purchase      673                  7.1075
Purchase      668                  7.0600
Purchase      6,358                7.0636
Purchase      43,045               7.0700
Purchase      1,200                7.0983
Purchase      64,567               7.0450
Purchase      2,300                7.1050
Purchase      100                  7.0750
Sale          100                  7.0750
Sale          29,084               7.0814
Sale          1,200                7.0983
Sale          400                  7.1050
Sale          6,240                7.0806
Sale          13,157               7.0450
Sale          50,857               7.0944
Sale          172,179              7.0606

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          100           7.075
CFD            Long          6240          7.0806
CFD            Long          29084         7.0814
CFD            Long          50857         7.0944
CFD            Long          1200          7.0983
CFD            Long          400           7.105
CFD            Short         6358          7.0636
CFD            Short         100           7.075
CFD            Short         72163         7.0813
CFD            Short         6775          7.0923
CFD            Short         56077         7.0924
CFD            Short         1200          7.0983
CFD            Short         2300          7.105

(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                         12 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