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               20 June 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      42,510,512      4.11%      720,524       0.07%
securities
(2) Derivatives      463,573      0.04%    1,321,198       0.13%
(other than
options)
(3) Options and            0      0.00%            0       0.00%
agreements to
purchase/sell
Total             42,974,085      4.16%    2,041,722       0.20%


(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      13,583               7.0055
Purchase      18,000               7.0209
Purchase      649                  6.9600
Purchase      3,673                7.0543
Purchase      13,037               6.9678
Purchase      17,129               7.0179
Purchase      4,185                7.0357
Purchase      60,731               7.0349
Purchase      24,744               7.0295
Purchase      12,893               6.9900
Purchase      2,116                7.0543
Purchase      2,261                7.0543
Purchase      19,754               6.9900
Purchase      696                  7.0650
Purchase      160                  7.0650
Purchase      138,712              7.0543
Purchase      25,507               7.0290
Purchase      21                   7.0390
Purchase      43,152               6.9900
Sale          20,327               7.0500
Sale          723                  7.0650
Sale          19,680               6.9827
Sale          51,934               6.9838
Sale          1,453                7.0365
Sale          22,971               7.0172
Sale          8,578                7.0637
Sale          46,531               7.0500
Sale          30,782               7.0261
Sale          21,026               7.0731
Sale          346,222              6.9799
Sale          15,853               7.0641
Sale          15,475               7.0145
Sale          389,500              6.9799
Sale          734                  7.0650
Sale          5                    7.0650
Sale          5,456                7.0650
Sale          729                  7.0650
Sale          13,675               7.0500

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          19680          6.9826
CFD            Long          54551          6.9999
CFD            Long          15475          7.0145
CFD            Long          7119           7.0154
CFD            Long          22971          7.0171
CFD            Long          30782          7.026
CFD            Long          1453           7.0364
CFD            Long          8578           7.0636
CFD            Long          15853          7.0641
CFD            Long          21026          7.073
CFD            Short         13037          6.9677
CFD            Short         13583          7.0055
CFD            Short         17129          7.0178
CFD            Short         18000          7.0208
CFD            Short         25507          7.029
CFD            Short         24744          7.0294
CFD            Short         60731          7.0349
CFD            Short         4185           7.0357

(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                         23 June 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