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)     17 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      42,117,962       4.07%     1,801,598     0.17%
securities
(2) Derivatives    1,557,597       0.15%       335,438     0.03%
(other than
options)
(3) Options and            0       0.00%             0     0.00%
agreements to
purchase/sell
Total             43,675,559       4.22%     2,137,036     0.21%


(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      100                  7.2300
Purchase      4,400                7.1550
Purchase      17,592               7.2320
Purchase      8,765                7.2651
Purchase      28,472               7.2337
Purchase      27,535               7.1950
Purchase      60,305               7.2548
Purchase      1,376                7.1550
Purchase      3,086                7.2784
Purchase      1,171                7.1550
Sale          53,736               7.2459
Sale          44,520               7.2494
Sale          3,789                7.1550
Sale          4,400                7.1550
Sale          22,781               7.2077
Sale          100                  7.2300
Sale          47                   7.2640
Sale          4,800                7.1550
Sale          1,296                7.1550
Sale          27,535               7.1550
Sale          16,256               7.2875

NB: The below transactions which were previously disclosed have been cancelled
Deal Date     Purchase/Sale     Number of Securities     Price per unit (GBP)
16/09/2008    Sale              171,668                  7.2319
16/09/2008    Purchase          173,964                  7.2258

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          22781         7.2077
CFD            Long          100           7.23
CFD            Long          22801         7.2429
CFD            Long          53736         7.2458
CFD            Long          21719         7.2561
CFD            Long          47            7.264
CFD            Short         3428          7.22
CFD            Short         100           7.23
CFD            Short         17592         7.232
CFD            Short         25044         7.2355
CFD            Short         60305         7.2548
CFD            Short         8765          7.265

(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 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