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)     14 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      41,243,264       3.99%    1,219,975      0.12%
securities
(2) Derivatives      825,989       0.08%      151,823      0.01%
(other than
options)
(3) Options and            0       0.00%            0      0.00%
agreements to
purchase/sell
Total             42,069,253       4.07%    1,371,798      0.13%


(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      41,456               7.0943
Purchase      9,449                7.1200
Purchase      600                  7.0950
Purchase      16,654               7.1049
Purchase      7,604                7.1209
Purchase      22,132               7.0962
Purchase      48,847               7.1045
Sale          7,230                7.0987
Sale          21,215               7.1045
Sale          43,435               7.0989
Sale          600                  7.0950
Sale          3,531                7.1189
Sale          19,526               7.1200
Sale          7,544                7.1093
Sale          884                  7.0900
Sale          5,971                7.1093
Sale          2,186                7.0850
Sale          21,890               7.1200
Sale          12,022               7.1170


(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          600           7.095
CFD            Long          7230          7.0986
CFD            Long          43435         7.0988
CFD            Long          21215         7.1044
CFD            Long          12022         7.117
CFD            Long          3531          7.1188
CFD            Long          14601         7.12
CFD            Short         29920         7.0881
CFD            Short         41456         7.0943
CFD            Short         600           7.095
CFD            Short         22132         7.0961
CFD            Short         48847         7.1045
CFD            Short         16654         7.1049
CFD            Short         14601         7.12


(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 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