FORM 6-K

                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549


                            Report of Foreign Issuer


                      Pursuant to Rule 13a-16 or 15d-16 of
                       the Securities Exchange Act of 1934


                                October 10, 2005


                            BRITISH ENERGY GROUP PLC
                               (Registrant's name)


                                  Systems House
                                   Alba Campus
                                   Livingston
                                    EH54 7EG
                    (Address of principal executive offices)


Indicate by check mark whether the registrant files or will file annual
reports under cover Form 20-F or Form 40-F.

                          Form 20-F..X.. Form 40-F.....

Indicate by check mark whether the registrant by furnishing the information
contained in this Form is also thereby furnishing the information to the
Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.

                               Yes ..... No ..X..

If "Yes" is marked, indicate below the file number assigned to the registrant
in connection with Rule 12g3-2(b):



                                 Exhibit Index

The following document (bearing the exhibit number listed below) is furnished
herewith and is made a part of this Report pursuant to the General Instructions
for Form 6-K:

Exhibit       Description

No.1          RNS Announcement, re: Section 198 Notice dated 10 October 2005



10 October 2005


                         British Energy Group plc

UK COMPANIES ACT 1985 - SECTIONS 198-203 - British Energy Group plc (the
"Company")


This notification relates to issued common stock of the Company ("shares") and
is given in fulfilment of the obligations imposed by sections 198 to 203 of the
Companies Act 1985 (the "Act").

The Company has received notification that as at close of business on 3 October
2005, The Goldman Sachs Group, Inc ("GS Inc") of 85 Broad Street, New York, NY,
10004, USA, was interested, by attribution only, in a total of 38,637,250
shares.

The interest in these shares arose from Goldman, Sachs & Co., a wholly-owned
direct subsidiary of GS Inc, acting as custodian for its customers.  These
shares are, or will be, registered in the name of Goldman Sachs Securities
(Nominees), Limited.

The Company has previously announced that as at close of business on 30 August
2005, GS Inc had a notifiable interest in 43,547,943 shares.

                                   SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the
registrant has duly caused this report to be signed on its behalf by the
undersigned, thereunto duly authorized.


Date:  October 10, 2005                    BRITISH ENERGY GROUP PLC

                                           By:____John Searles____

                                           Name:  John Searles
                                           Title: Director - Investor Relations