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)     19 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      42,442,843       4.10%     1,378,053     0.13%
securities
(2) Derivatives    1,250,573       0.12%       115,110     0.01%
(other than
options)
(3) Options and            0       0.00%             0     0.00%
agreements to
purchase/sell
Total             43,693,416       4.23%     1,493,163     0.14%

(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     64,525                7.1976
Purchase     107,617               7.2250
Purchase     7,026                 7.2050
Purchase     800                   7.1300
Purchase     291,708               7.1934
Purchase     3,400                 7.2021
Purchase     88,333                7.2228
Purchase     12,837                7.1313
Purchase     788                   7.2050
Purchase     1,399                 7.1811
Purchase     13,186                7.1918
Purchase     13,680                7.2050
Purchase     15,000                7.1377
Purchase     696                   7.2050
Purchase     52                    7.2050
Purchase     3                     7.2050
Purchase     648                   7.2050
Purchase     1,168                 7.2050
Purchase     490                   7.2050
Purchase     6,559                 7.1550
Purchase     606                   7.2050
Purchase     5,752                 7.2050
Purchase     1,007                 7.2050
Sale         71,195                7.2000
Sale         788                   7.2050
Sale         6,559                 7.1550
Sale         15,000                7.2677
Sale         800                   7.1300
Sale         5,159                 7.0900
Sale         5,954                 7.2050
Sale         1,352                 7.1955
Sale         13,680                7.2050
Sale         23,676                7.1472
Sale         7,026                 7.2050
Sale         14,468                7.2039
Sale         173,978               7.1833

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          800           7.13
CFD            Long          23676         7.1472
CFD            Long          156512        7.1819
CFD            Long          17466         7.1949
CFD            Long          1352          7.1955
CFD            Long          14468         7.2039
CFD            Short         800           7.13
CFD            Short         1399          7.181
CFD            Short         13186         7.1918
CFD            Short         291708        7.1934
CFD            Short         66847         7.1975
CFD            Short         3400          7.2021

(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                         22 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