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)     21 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     40,844,645        3.95%    1,586,532      0.15%
securities
(2) Derivatives   1,376,073        0.13%      324,026      0.03%
(other than
options)
(3) Options and           0        0.00%            0      0.00%
agreements to
purchase/sell
Total            42,220,718        4.08%    1,910,558      0.18%


(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      401                  6.9600
Purchase      215                  6.9311
Purchase      19,327               6.9392
Purchase      35,98                6.9300
Purchase      215                  6.9600
Purchase      488                  6.8800
Purchase      698                  6.9600
Purchase      157,697              6.9267
Purchase      9,998                6.9259
Purchase      70,661               6.9355
Purchase      224,062              6.9290
Purchase      980                  6.9600
Purchase      3,920                6.9600
Purchase      55,307               7.0000
Purchase      140,257              7.0000
Purchase      1                    6.9500
Purchase      28,498               7.0000
Purchase      25,603               6.9309
Purchase      17,545               6.9326
Sale          35,925               6.9267
Sale          215                  6.9311
Sale          1,633                6.9589
Sale          11,546               6.9740
Sale          9,998                6.9259
Sale          224,062              6.9291
Sale          552                  6.8850
Sale          3,274                6.9600
Sale          1                    6.9300

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          9998          6.9259
CFD            Long          35925         6.9267
CFD            Long          1633          6.9588
CFD            Long          11546         6.9739
CFD            Short         488           6.88
CFD            Short         7700          6.9258
CFD            Short         9998          6.9259
CFD            Short         157697        6.9266
CFD            Short         35981         6.9299
CFD            Short         25603         6.9309
CFD            Short         17545         6.9325
CFD            Short         70661         6.9355
CFD            Short         19327         6.9391

(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                         22 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