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 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      43,056,652      4.17%      2,524,215     0.24%
securities
(2) Derivatives    1,707,546      0.17%        576,119     0.06%
(other than
options)
(3) Options and            0      0.00%              0     0.00%
agreements to
purchase/sell
Total             44,764,198      4.33%       3,100,334    0.30%

(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      15,422               6.3735
Purchase      2,580                6.3000
Purchase      15,992               6.3378
Purchase      18,617               6.3437
Purchase      2                    Transfer
Purchase      78,061               6.3529
Purchase      107,951              6.3456
Purchase      37,995               6.2100
Purchase      17,672               6.2100
Purchase      1,040                6.3358
Purchase      133,486              6.4100
Purchase      35,000               6.2876
Purchase      49,304               6.3533
Purchase      25,637               6.3710
Purchase      141,530              6.4000
Purchase      2,950                6.2100
Purchase      8,035                6.3028
Purchase      4,023                6.2112
Purchase      3                    Transfer
Purchase      9,378                6.2950
Purchase      542                  6.2100
Purchase      22,490               6.5200
Purchase      732                  6.2100
Sale          52,750               6.3441
Sale          17,266               6.3276
Sale          118,618              6.3353
Sale          18,422               6.3634
Sale          39,018               6.2100
Sale          71,063               6.3434
Sale          76,376               6.3518
Sale          15,422               6.4093
Sale          1,441                6.3198
Sale          37,995               6.2100
Sale          141,530              6.4000
Sale          36,851               6.4050
Sale          411,860              6.4050
Sale          108,384              6.4050
Sale          12,796               6.3224

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Short         4023          6.2111
CFD            Short         35000         6.2876
CFD            Short         9378          6.295
CFD            Short         8035          6.3028
CFD            Short         1040          6.3357
CFD            Short         22740         6.3367
CFD            Short         18617         6.3436
CFD            Short         107951        6.3456
CFD            Short         78061         6.3528
CFD            Short         49304         6.3532
CFD            Short         25637         6.3709
CFD            Short         15422         6.3735
CFD            Long          1441          6.3198
CFD            Long          12796         6.3223
CFD            Long          17266         6.3276
CFD            Long          118618        6.3353
CFD            Long          71063         6.3434
CFD            Long          52750         6.3441
CFD            Long          76376         6.3517
CFD            Long          18422         6.3633
CFD            Long          15422         6.4092

(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                         25 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