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)     16 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      42,146,716       4.08%     1,861,235     0.18%
securities
(2) Derivatives    1,776,347       0.17%       370,767     0.04%
(other than
options)
(3) Options and            0       0.00%             0     0.00%
agreements to
purchase/sell
Total             43,923,063       4.25%     2,232,002     0.22%


(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      1,289                7.2511
Purchase      4,801                7.2303
Purchase      39,735               7.2147
Purchase      173,964              7.2258
Purchase      173,964              7.2258
Purchase      859                  7.1700
Purchase      40,525               7.2344
Purchase      132,794              7.1869
Purchase      13,153               7.1829
Purchase      9,193                7.2100
Purchase      2,197                7.2100
Purchase      618                  7.2100
Purchase      1,536                7.2100
Purchase      1,536                7.2100
Purchase      19,557               7.1892
Purchase      3,831                7.2100
Sale          75,964               7.2480
Sale          4,801                7.1889
Sale          8,418                7.2440
Sale          2,450                7.2100
Sale          40,525               7.2344
Sale          405                  7.2050
Sale          5,917                7.1805
Sale          10,179               7.1974
Sale          235                  7.2138
Sale          336                  7.2038
Sale          171,668              7.2319
Sale          4,052                7.3100
Sale          171,668              7.2319
Sale          859                  7.1700
Sale          859                  7.1700
Sale          55,548               7.2209

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          4801          7.1889
CFD            Long          10179         7.1974
CFD            Long          336           7.2038
CFD            Long          235           7.2137
CFD            Long          6516          7.2179
CFD            Long          55548         7.2209
CFD            Long          343336        7.2318
CFD            Long          40525         7.2344
CFD            Long          75964         7.2479
CFD            Long          1902          7.333
CFD            Short         13238         7.179
CFD            Short         13153         7.1829
CFD            Short         132794        7.1869
CFD            Short         6319          7.2105
CFD            Short         347928        7.2258
CFD            Short         4801          7.2302
CFD            Short         40525         7.2344
CFD            Short         1289          7.251

(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                         17 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