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 May 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      45,404,449       4.39%       53,063      0.01%
securities
(2) Derivatives       93,902       0.01%    1,592,683      0.15%
(other than
options)
(3) Options and            0       0.00%            0      0.00%
agreements to
purchase/sell
Total             45,498,351       4.40%    1,645,746      0.16%


(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      26,899               7.1417
Purchase      3,495                7.1480
Purchase      1,508                7.1480
Purchase      18,570               7.1800
Purchase      6,230                7.1405
Purchase      7,704                7.1426
Purchase      4,972                7.1575
Purchase      1,442                7.1800
Purchase      1,636                7.1523
Purchase      14,549               7.1290
Sale          134,434              7.1447
Sale          700                  7.1438
Sale          4,973                7.1420
Sale          15,651               7.1326
Sale          6,638                7.1582
Sale          5,274                7.1788
Sale          17,857               7.1789
Sale          1,943                7.1470

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          15651         7.1325
CFD            Long          4973          7.142
CFD            Long          700           7.1438
CFD            Long          134434        7.1446
CFD            Long          1943          7.147
CFD            Long          6638          7.1582
CFD            Long          1375          7.1666
CFD            Long          17857         7.1789
CFD            Short         14549         7.1289
CFD            Short         6230          7.1405
CFD            Short         26899         7.1417
CFD            Short         7704          7.1426
CFD            Short         3880          7.1461
CFD            Short         4972          7.1575

(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 May 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