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)     05 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      40,910,917       3.96%     1,441,022     0.14%
securities
(2) Derivatives    1,311,441       0.13%       200,084     0.02%
(other than
options)
(3) Options and            0       0.00%             0     0.00%
agreements to
purchase/sell
Total             42,222,358       4.08%     1,641,106     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      463,880              7.3063
Purchase      1,182                7.3250
Purchase      27,616               7.2893
Purchase      114,940              7.3195
Purchase      18,748               7.3156
Purchase      2,073                7.3500
Purchase      2,000                7.3125
Sale          9,335                7.3096
Sale          1,885                7.3275
Sale          27,616               7.2800
Sale          463,880              7.3063
Sale          14,819               7.2918
Sale          60,900               7.2800
Sale          97,455               7.3152
Sale          129,136              7.2800
Sale          6,509                7.3572
Sale          16,375               7.3096
Sale          636                  7.2800
Sale          113,222              7.3257
Sale          78,795               7.2959
Sale          31,518               7.3096
Sale          1,100                7.2988
Sale          2,000                7.3125
Sale          81,659               7.3054

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          14819         7.2917
CFD            Long          78795         7.2959
CFD            Long          1100          7.2988
CFD            Long          81659         7.3054
CFD            Long          463880        7.3062
CFD            Long          2000          7.3125
CFD            Long          97455         7.3152
CFD            Long          113222        7.3257
CFD            Long          6509          7.3572
CFD            Short         463880        7.3062
CFD            Short         2000          7.3125
CFD            Short         18748         7.3155
CFD            Short         114940        7.3195
CFD            Short         1182          7.325

(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                         08 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