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               14 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      45,011,427       4.35%        35,771     0.00%
securities
(2) Derivatives       83,677       0.01%     1,214,895     0.12%
(other than
options)
(3) Options and            0       0.00%            0      0.00%
agreements to
purchase/sell
Total             45,095,104       4.36%     1,250,666     0.12%


(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      8,615                6.7517
Purchase      9,616                6.7981
Purchase      40,157               6.7850
Purchase      1,177                6.7710
Purchase      3,658                6.7200
Purchase      13,425               6.7828
Purchase      13,147               6.7850
Purchase      10,973               6.8094
Purchase      14,791               6.7863
Purchase      28,380               6.7884
Purchase      13,517               6.7500
Sale          100                  6.7600
Sale          18,883               6.7832
Sale          26,103               6.7851
Sale          2,100                6.7900
Sale          4,741                6.7854
Sale          1,236                6.7631
Sale          58,619               6.8097
Sale          14,272               6.7904
Sale          883                  6.8350
Sale          29,391               6.7854
Sale          1,470                6.7854
Sale          2,351                6.7850

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          100           6.76
CFD            Long          1236          6.7631
CFD            Long          18883         6.7831
CFD            Long          26103         6.785
CFD            Long          2100          6.79
CFD            Long          14272         6.7904
CFD            Long          58619         6.8096
CFD            Short         3658          6.72
CFD            Short         13517         6.75
CFD            Short         8615          6.7517
CFD            Short         13425         6.7827
CFD            Short         14791         6.7862
CFD            Short         28380         6.7883
CFD            Short         9616          6.7981
CFD            Short         10973         6.8094

(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                         15 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