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               10 July 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      41,534,285      4.02%    1,706,713       0.17%
securities
(2) Derivatives    1,389,711      0.13%      297,158       0.03%
(other than
options)
(3) Options and            0      0.00%            0       0.00%
agreements to
purchase/sell
Total             42,923,996      4.15%    2,003,871       0.19%

(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      43,679               7.0727
Purchase      40,807               7.1199
Purchase      422                  7.1040
Purchase      6,106                7.0699
Purchase      4,091                7.0550
Purchase      172,674              7.0300
Purchase      2,692                7.0942
Purchase      68,423               7.1052
Purchase      6,086                7.0942
Purchase      35,122               7.0753
Purchase      1,699                7.0942
Purchase      1,329                7.1500
Purchase      116,969              7.0999
Purchase      900                  7.1412
Purchase      4,782                7.0550
Purchase      172,674              7.0300
Sale          215,842              Transfer
Sale          172,674              7.0300
Sale          38,633               7.0847
Sale          32,647               7.0770
Sale          3,113                7.1340
Sale          116,969              7.0999
Sale          3,450                7.0850
Sale          4,316                7.0550
Sale          21,187               7.1238
Sale          21,187               7.1238
Sale          4,572                7.0759

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          7392          7.0565
CFD            Long          4572          7.0759
CFD            Long          32647         7.077
CFD            Long          38633         7.0846
CFD            Long          3450          7.085
CFD            Long          116969        7.0999
CFD            Long          8950          7.1046
CFD            Short         6106          7.0699
CFD            Short         43679         7.0726
CFD            Short         35122         7.0752
CFD            Short         116969        7.0999
CFD            Short         422           7.104
CFD            Short         68423         7.1051
CFD            Short         40807         7.1199
CFD            Short         900           7.1412

(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                         11 July 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