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)     11 September 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      40,551,446       3.92%     1,748,788     0.17%
securities
(2) Derivatives    1,692,258       0.16%       264,704     0.03%
(other than
options)
(3) Options and            0       0.00%             0     0.00%
agreements to
purchase/sell
Total             42,243,704       4.09%     2,013,492     0.19%


(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      10,300               7.2500
Purchase      731                  7.2050
Purchase      36,509               7.2181
Purchase      1,470                7.1900
Purchase      800                  7.2025
Purchase      69,634               7.2161
Purchase      76,785               7.1958
Purchase      37,204               7.2115
Purchase      6,800                7.2000
Purchase      3,227                7.2318
Purchase      3,499                7.1911
Sale          76,785               7.1958
Sale          10,300               7.2500
Sale          1,400                7.2288
Sale          800                  7.2025
Sale          36,903               7.1982
Sale          31,795               7.2195
Sale          39,677               7.2264
Sale          56,596               7.2259
Sale          11,035               7.2375
Sale          8,171                7.1900
Sale          24,899               7.1932

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          24899         7.1932
CFD            Long          76785         7.1958
CFD            Long          36903         7.1982
CFD            Long          800           7.2025
CFD            Long          31795         7.2195
CFD            Long          39677         7.2263
CFD            Long          1400          7.2288
CFD            Short         3499          7.191
CFD            Short         76785         7.1958
CFD            Short         800           7.2025
CFD            Short         37204         7.2115
CFD            Short         69634         7.2161
CFD            Short         36509         7.2181
CFD            Short         3227          7.2317

(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                         12 September 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