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               19 March 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      42,592,620      4.12%      2,029,902     0.20%
securities
(2) Derivatives    1,675,860      0.16%        553,379     0.05%
(other than
options)
(3) Options and            0      0.00%              0     0.00%
agreements to
purchase/sell
Total             44,268,480      4.28%       2,583,281    0.25%

(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      136,493              6.2941
Purchase      61,273               6.2876
Purchase      1,144                6.1110
Purchase      41,839               6.5250
Purchase      22,003               6.3488
Purchase      30,000               6.3332
Purchase      14,637               6.4000
Purchase      32,918               6.2822
Purchase      17                   6.3250
Purchase      36,388               6.2725
Purchase      956                  6.1110
Purchase      22,728               6.3279
Purchase      12,000               6.3332
Purchase      114,932              6.5250
Purchase      129,334              6.2564
Purchase      187,849              6.1974
Purchase      93,310               6.3031
Purchase      1,441                6.2062
Purchase      14,654               6.5250
Sale          22,130               6.2918
Sale          8,009                6.4382
Sale          14,637               6.4000
Sale          5,415                6.4382
Sale          34,890               6.2918
Sale          25,637               6.3990
Sale          61,280               6.2967
Sale          63,123               6.2814
Sale          3,941                6.3988
Sale          19,412               6.2501
Sale          1,533                6.2814
Sale          3,714                6.4000
Sale          14,654               6.5250
Sale          29,712               6.4000
Sale          17                   6.3250
Sale          18,146               6.4382
Sale          41,839               6.5250
Sale          11,982               6.3163
Sale          114,920              6.5250
Sale          72,636               6.2756
Sale          3,776                6.1150
Sale          128,033              6.2605
Sale          169,007              6.3130
Sale          20,960               6.3696
Sale          114,932              6.5250

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Short         1144          6.1109
CFD            Short         956           6.111
CFD            Short         187849        6.1974
CFD            Short         1441          6.2061
CFD            Short         129334        6.2564
CFD            Short         36388         6.2725
CFD            Short         32918         6.2821
CFD            Short         61273         6.2876
CFD            Short         136493        6.2941
CFD            Short         93310         6.303
CFD            Short         22728         6.3279
CFD            Long          19412         6.25
CFD            Long          128033        6.2604
CFD            Long          72636         6.2756
CFD            Long          61280         6.2967
CFD            Long          169007        6.3129
CFD            Long          11982         6.3163
CFD            Long          20960         6.3695
CFD            Long          3941          6.3987
CFD            Long          25637         6.399

(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                         20 March 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)

DETAILS OF OPEN POSITIONS
(This form should be attached to Form 8.1, Form 8.1(b)(ii) or Form 8.3, as appropriate)


Product name,     Written or  Number of securities   Exercise price   Type, e.g.     Expiry date
e.g. call option  purchased   to which the option    (Note 2)         American,


Notes

The Notes on Form 8.3 can be viewed on the Takeover Panel's website at
www.thetakeoverpanel.org.uk