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)     15 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      41,100,904       3.97%    1,352,892      0.13%
securities
(2) Derivatives      973,866       0.09%      163,203      0.02%
(other than
options)
(3) Options and            0       0.00%            0      0.00%
agreements to
purchase/sell
Total             42,074,770       4.07%    1,516,095      0.15%

(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      61,829               7.1140
Purchase      4,916                7.1200
Purchase      19,300               7.1275
Purchase      90,873               7.0875
Purchase      8,300                7.1260
Purchase      17,816               7.1200
Purchase      7,800                7.1269
Purchase      400                  7.1275
Purchase      26                   Transfer
Purchase      2,452                7.1245
Sale          7,920                7.1259
Sale          110,605              7.1047
Sale          17,136               7.0977
Sale          90,873               7.0875
Sale          20,442               7.1302
Sale          65,115               7.1203
Sale          784                  7.1200
Sale          17,816               7.1200
Sale          5,086                7.1200
Sale          4,916                7.1200
Sale          8,950                7.1200
Sale          2,751                7.1000
Sale          1,405                7.1433
Sale          1,873                7.1433
Sale          400                  7.1275

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          90873         7.0875
CFD            Long          17136         7.0976
CFD            Long          110605        7.1046
CFD            Long          65115         7.1203
CFD            Long          7920          7.1258
CFD            Long          400           7.1275
CFD            Long          20442         7.1302
CFD            Short         90873         7.0875
CFD            Short         61829         7.1139
CFD            Short         2452          7.1244
CFD            Short         8300          7.126
CFD            Short         7800          7.1269
CFD            Short         19700         7.1275

(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                         18 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