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               23 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      42,780,624      4.14%      714,520       0.07%
securities
(2) Derivatives      458,622      0.04%    1,388,155       0.13%
(other than
options)
(3) Options and            0      0.00%            0       0.00%
agreements to
purchase/sell
Total             43,239,246      4.18%    2,102,675       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      15,969               7.0123
Purchase      18,728               6.9841
Purchase      15,853               6.9979
Purchase      40,905               6.9841
Purchase      37,669               7.0103
Purchase      24,076               7.0090
Purchase      64,354               6.9966
Purchase      1,053                6.9900
Purchase      11,896               7.0300
Purchase      38,486               7.0098
Purchase      25,998               7.0300
Purchase      18,570               7.0300
Purchase      75,889               7.0650
Purchase      962                  6.9550
Purchase      12,224               6.9841
Sale          1,400                7.0050
Sale          42,848               7.0103
Sale          9,367                7.0300
Sale          5,600                7.0300
Sale          43,184               7.0053
Sale          9,081                7.0070
Sale          8,810                7.0300
Sale          10,902               7.0291
Sale          1,328                7.0650

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          6627          6.9848
CFD            Long          4857          7.003
CFD            Long          1400          7.005
CFD            Long          43184         7.0053
CFD            Long          9081          7.007
CFD            Long          42848         7.0103
CFD            Long          10902         7.0291
CFD            Long          5600          7.03
CFD            Short         64354         6.9966
CFD            Short         15853         6.9979
CFD            Short         24076         7.009
CFD            Short         38486         7.0098
CFD            Short         37669         7.0102
CFD            Short         15969         7.0123

(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                         24 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