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)
Date of dealing               25 March 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      42,806,270      4.14%      2,680,927     0.26%
securities
(2) Derivatives    1,864,258      0.18%        581,157     0.06%
(other than
options)
(3) Options and            0      0.00%              0     0.00%
agreements to
purchase/sell
Total             44,670,528      4.32%       3,262,084    0.32%

(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      8,622                6.5418
Purchase      823                  6.6050
Purchase      141,530              6.5375
Purchase      39,579               6.5475
Purchase      29,133               6.5296
Purchase      36,013               6.5339
Purchase      629                  6.6050
Purchase      7,474                6.6050
Purchase      805                  6.6050
Purchase      8,124                6.6050
Purchase      54,000               6.5607
Purchase      75,200               6.6050
Purchase      1,513                6.5806
Purchase      51,701               6.5151
Purchase      22,031               6.5022
Purchase      8,990                6.5263
Purchase      1,645                6.7100
Purchase      40,435               6.5686
Purchase      2,373                6.6050
Purchase      17,931               6.4314
Sale          1,011                6.6263
Sale          141,530              6.5375
Sale          54,205               6.5808
Sale          60                   6.5850
Sale          7,474                6.6050
Sale          48,038               6.5560
Sale          45,484               6.5274
Sale          5,409                6.6050
Sale          141,530              6.5375
Sale          688                  6.6050
Sale          3,816                6.6037
Sale          37,537               6.5505
Sale          20,388               6.6400
Sale          15,844               6.5560
Sale          8,929                6.5588
Sale          1,300                6.5939
Sale          16,148               6.6040
Sale          206,872              6.5770
Sale          40,620               6.6050
Sale          2,050                6.5528

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Short         17931         6.4314
CFD            Short         22031         6.5022
CFD            Short         51701         6.515
CFD            Short         8990          6.5262
CFD            Short         29133         6.5296
CFD            Short         36013         6.5338
CFD            Short         8622          6.5417
CFD            Short         39579         6.5475
CFD            Short         54000         6.5606
CFD            Short         40435         6.5686
CFD            Short         1513          6.5806
CFD            Long          45484         6.5273
CFD            Long          37537         6.5505
CFD            Long          2050          6.5528
CFD            Long          15844         6.5559
CFD            Long          48038         6.556
CFD            Long          8929          6.5587
CFD            Long          206872        6.5769
CFD            Long          54205         6.5807
CFD            Long          1300          6.5939
CFD            Long          3816          6.6037
CFD            Long          16148         6.604
CFD            Long          1011          6.6262
CFD            Long          20388         6.6399

(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                         26 March 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)

DETAILS OF OPEN POSITIONS
(This form should be attached to Form 8.1, Form 8.1(b)(ii) or Form 8.3, as appropriate)


Product name,     Written or  Number of securities   Exercise price   Type, e.g.     Expiry date
e.g. call option  purchased   to which the option    (Note 2)         American,


Notes

The Notes on Form 8.3 can be viewed on the Takeover Panel's website at
www.thetakeoverpanel.org.uk