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)     08 August 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     41,325,085        4.00%    1,453,738      0.14%
securities
(2) Derivatives   1,097,241        0.11%      203,958      0.02%
(other than
options)
(3) Options and           0        0.00%            0      0.00%
agreements to
purchase/sell
Total            42,422,326        4.10%    1,657,696      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      5,384                7.0561
Purchase      53,968               7.0536
Purchase      1,923                7.0650
Purchase      43,045               7.0500
Purchase      150,657              7.0564
Purchase      43,045               7.0500
Purchase      21,522               7.0650
Purchase      1,000                7.0615
Purchase      2,448                7.0550
Purchase      43,045               7.0650
Purchase      2,107                7.0550
Purchase      696                  7.0550
Purchase      10,590               7.0663
Purchase      300                  7.0400
Purchase      910                  7.0663
Purchase      9,328                7.0650
Purchase      1,125                7.0550
Purchase      30,628               7.0550
Sale          150,657              7.0564
Sale          820                  7.0053
Sale          30,628               7.0550
Sale          300                  7.0400
Sale          63,860               7.0700
Sale          1,827                7.0550
Sale          14,110               7.0536
Sale          1,000                7.0615
Sale          6,775                7.0539
Sale          1,055                7.0593

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          300           7.04
CFD            Long          14110         7.0535
CFD            Long          6775          7.0538
CFD            Long          1055          7.0592
CFD            Long          1000          7.0615
CFD            Long          63860         7.07
CFD            Short         300           7.04
CFD            Short         53968         7.0536
CFD            Short         5384          7.0561
CFD            Short         1000          7.0615
CFD            Short         9328          7.065

(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                         11 August 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