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)     18 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      42,145,198       4.08%     1,793,403     0.17%
securities
(2) Derivatives    1,574,431       0.15%       275,902     0.03%
(other than
options)
(3) Options and            0       0.00%             0     0.00%
agreements to
purchase/sell
Total             43,719,629       4.23%     2,069,305     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      200,394              7.2390
Purchase      2,055                7.1479
Purchase      18,278               7.1450
Purchase      500                  7.1250
Purchase      63,679               7.1116
Purchase      80,940               7.1550
Purchase      3,200                7.1450
Purchase      150,000              7.4355
Purchase      8,600                7.1874
Purchase      696                  7.1450
Purchase      27,569               7.2709
Purchase      110,565              7.1783
Sale          150,000              7.1892
Sale          4,400                7.1300
Sale          500                  7.1250
Sale          87,069               7.2210
Sale          206,379              7.2473
Sale          8,600                7.1867
Sale          150,000              7.1892
Sale          17,513               7.1450
Sale          2,714                7.1450
Sale          1,564                7.1767
Sale          401                  7.1450
Sale          15,860               7.2139

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          500           7.125
CFD            Long          53041         7.1756
CFD            Long          8600          7.1867
CFD            Long          300000        7.1892
CFD            Long          15860         7.2138
CFD            Long          27709         7.2219
CFD            Long          206379        7.2472
CFD            Long          34028         7.2917
CFD            Short         63679         7.1116
CFD            Short         500           7.125
CFD            Short         2680          7.145
CFD            Short         110565        7.1783
CFD            Short         8600          7.1874
CFD            Short         200394        7.2389
CFD            Short         27569         7.2708
CFD            Short         150000        7.4354

(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                         19 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