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               26 June 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      42,007,828      4.06%      774,109       0.07%
securities
(2) Derivatives      538,980      0.05%      693,427       0.07%
(other than
options)
(3) Options and            0      0.00%            0       0.00%
agreements to
purchase/sell
Total            42,546,808       4.12%    1,467,536       0.14%


(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      21,779               6.9950
Purchase      75,889               7.0510
Purchase      1,862                6.9950
Purchase      26,935               7.0204
Purchase      75,500               6.9950
Purchase      2,971                7.0307
Purchase      350,000              7.0324
Purchase      40,673               7.0436
Purchase      9,570                7.0454
Purchase      4,362                7.0442
Purchase      1,493                6.9950
Purchase      874                  6.9950
Purchase      1,292                7.0413
Purchase      10,529               7.0325
Sale          350,000              7.0324
Sale          36,472               7.0943
Sale          13,041               7.0028
Sale          119,076              7.0281
Sale          23,679               7.0316
Sale          5,531                6.9937
Sale          41,687               7.0332
Sale          5,755                7.0679
Sale          2,068                6.9950
Sale          1,400                7.0350
Sale          116,480              7.0412
Sale          7,260                6.9950
Sale          75,889               7.0511
Sale          2,040                6.9950
Sale          412                  6.9950
Sale          20,000               6.9950

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          5531          6.9936
CFD            Long          13041         7.0027
CFD            Long          119076        7.0281
CFD            Long          23679         7.0316
CFD            Long          350000        7.0324
CFD            Long          41687         7.0331
CFD            Long          1400          7.035
CFD            Long          116480        7.0412
CFD            Long          5423          7.047
CFD            Short         26935         7.0203
CFD            Short         2971          7.0307
CFD            Short         360529        7.0324
CFD            Short         2550          7.0368
CFD            Short         1292          7.0413
CFD            Short         40673         7.0435

(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                         27 June 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