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)     10 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      40,602,848       3.93%     1,694,553     0.16%
securities
(2) Derivatives    1,638,023       0.16%       195,070     0.02%
(other than
options)
(3) Options and            0       0.00%             0     0.00%
agreements to
purchase/sell
Total             42,240,871      4.08%      1,889,623     0.18%


(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      2,750                7.1261
Purchase      4,167                7.2500
Purchase      146,708              7.2500
Purchase      1,099                7.2000
Purchase      3,800                7.2000
Purchase      123,354              7.1923
Purchase      2,000                7.2754
Purchase      100                  7.1650
Purchase      28,115               7.1819
Purchase      698                  7.2500
Purchase      26,607               7.1892
Sale          121,300              7.1779
Sale          218,052              7.1932
Sale          3,800                7.1300
Sale          28,115               7.2500
Sale          3,800                7.2000
Sale          100                  7.1650
Sale          5,977                7.2510
Sale          34,521               7.1562
Sale          120,627              7.1924
Sale          1,900                7.1625
Sale          1,989                7.2489
Sale          146,708              7.2500
Sale          15,722               7.1952

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          34521         7.1562
CFD            Long          1900          7.1625
CFD            Long          100           7.165
CFD            Long          121300        7.1779
CFD            Long          120627        7.1924
CFD            Long          218052        7.1931
CFD            Long          15722         7.1952
CFD            Long          1989          7.2489
CFD            Long          5977          7.2509
CFD            Short         2750          7.126
CFD            Short         2237          7.1599
CFD            Short         100           7.165
CFD            Short         26607         7.1892
CFD            Short         123354        7.1922
CFD            Short         3098          7.2486
CFD            Short         2000          7.2754

(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                         11 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