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               15 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      41,452,139      4.01%    1,747,905       0.17%
securities
(2) Derivatives    1,452,290      0.14%      250,541       0.02%
(other than
options)
(3) Options and            0      0.00%            0       0.00%
agreements to
purchase/sell
Total             42,904,429      4.15%    1,998,446       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      45,239               7.1818
Purchase      93,499               7.1746
Purchase      5,215                7.2307
Purchase      2,883                7.1650
Purchase      11,638               7.1930
Purchase      1,700                7.1362
Purchase      521,804              7.2148
Purchase      2,366                7.2006
Purchase      2,674                7.2225
Purchase      15,578               7.0577
Purchase      23,563               7.2057
Purchase      16,602               7.1947
Purchase      26,500               7.1566
Purchase      4,822                6.9650
Purchase      18,963               7.1550
Purchase      1,470                7.1550
Purchase      58,710               7.1550
Sale          6,600                7.1867
Sale          4,822                6.9650
Sale          10,308               7.0600
Sale          2,200                7.2025
Sale          7,083                7.1921
Sale          2,355                7.1997
Sale          3,650                7.1655
Sale          2,366                7.0839
Sale          7,685                7.2450
Sale          89,896               7.1870
Sale          5,215                7.1908
Sale          521,804              7.2148
Sale          5,506                7.1761
Sale          58,710               7.1550
Sale          3,276                7.1750
Sale          6,936                7.1550
Sale          36,701               7.0433
Sale          23,800               7.1550
Sale          9,100                7.2130


(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          36701         7.0433
CFD            Long          2366          7.0838
CFD            Long          2474          7.1565
CFD            Long          3650          7.1654
CFD            Long          3276          7.175
CFD            Long          6600          7.1867
CFD            Long          89896         7.1869
CFD            Long          5215          7.1907
CFD            Long          2200          7.2025
CFD            Long          1578          7.2056
CFD            Long          9100          7.213
CFD            Long          521804        7.2147
CFD            Long          7685          7.245
CFD            Short         15578         7.0577
CFD            Short         1700          7.1362
CFD            Short         26500         7.1566
CFD            Short         2883          7.165
CFD            Short         93499         7.1746
CFD            Short         45239         7.1817
CFD            Short         11638         7.193
CFD            Short         16602         7.1947
CFD            Short         2366          7.2006
CFD            Short         521804        7.2147
CFD            Short         5215          7.2307


(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                         16 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