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)     27 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      41,551,118       4.02%      980,147      0.09%
securities
(2) Derivatives      798,098       0.08%      221,636      0.02%
(other than
options)
(3) Options and            0       0.00%            0      0.00%
agreements to
purchase/sell
Total            42,349,216        4.10%    1,201,783      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      9,399                7.2190
Purchase      3,451                7.2612
Purchase      3,011                7.2562
Purchase      51,230               7.2664
Purchase      85,487               7.2511
Purchase      200                  7.2200
Purchase      18,266               7.2438
Purchase      31,056               7.2300
Purchase      600                  7.2700
Purchase      1,960                7.2600
Purchase      349                  7.2600
Purchase      22,419               7.2300
Purchase      766                  7.2600
Sale          200                  7.2200
Sale          3,179                7.2374
Sale          90,508               7.2472
Sale          10,850               7.2005
Sale          23,639               7.2499
Sale          600                  7.2700

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          200           7.22
CFD            Long          3179          7.2373
CFD            Long          90508         7.2472
CFD            Long          23639         7.2499
CFD            Long          4228          7.2615
CFD            Long          2673          7.2675
CFD            Long          600           7.27
CFD            Short         9399          7.219
CFD            Short         200           7.22
CFD            Short         18266         7.2437
CFD            Short         85487         7.251
CFD            Short         3011          7.2561
CFD            Short         3451          7.2611
CFD            Short         51230         7.2663
CFD            Short         600           7.27

(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                         28 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