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               09 July 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      41,490,420      4.01%    1,801,558       0.17%
securities
(2) Derivatives    1,468,214      0.14%      309,563       0.03%
(other than
options)
(3) Options and            0      0.00%            0       0.00%
agreements to
purchase/sell
Total             42,958,634      4.15%    2,111,121       0.20%


(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      28,629               7.1496
Purchase      16,557               7.1622
Purchase      215,842              7.3250
Purchase      29,906               7.1673
Purchase      1,400                7.1600
Purchase      1,202                7.2962
Purchase      2,438                7.1611
Purchase      13,229               7.1673
Purchase      8,677                7.1931
Purchase      32,140               7.1640
Purchase      20,264               7.3209
Purchase      3,969                7.1672
Purchase      46,034               7.2716
Purchase      4,091                7.1600
Purchase      8,347                7.1673
Sale          13,866               7.1517
Sale          41,225               7.2480
Sale          39,624               7.1592
Sale          1,202                7.1889
Sale          18,596               7.3159
Sale          25,387               7.3296
Sale          549                  7.1600
Sale          711                  7.3438
Sale          28,629               7.1496
Sale          25,403               7.3068
Sale          20,264               7.2608
Sale          4,364                7.1600
Sale          7,439                7.1600
Sale          1,500                7.1600

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          28629         7.1496
CFD            Long          13866         7.1516
CFD            Long          39624         7.1592
CFD            Long          1500          7.16
CFD            Long          19616         7.1615
CFD            Long          1202          7.1888
CFD            Long          96212         7.2374
CFD            Long          41225         7.2479
CFD            Long          20264         7.2608
CFD            Long          25403         7.3067
CFD            Long          18596         7.3158
CFD            Long          25387         7.3296
CFD            Long          711           7.3437
CFD            Short         28629         7.1496
CFD            Short         1400          7.16
CFD            Short         2438          7.1611
CFD            Short         16557         7.1622
CFD            Short         32140         7.1639
CFD            Short         8677          7.1931
CFD            Short         67434         7.2176
CFD            Short         46034         7.2716
CFD            Short         1202          7.2961
CFD            Short         20264         7.3209

(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                         10 July 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