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 September 5, 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 5 September 2005 5 September 2005 British Energy Group plc UK COMPANIES ACT 1985 - SECTIONS 198-203 - British Energy Group plc (the "Company") The company has received notice as below. This notification covers shares which The Goldman Sachs Group, Inc has an interest in as custodian for its customers. 1. At close of business on 30 August 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 43,547,943 shares. 2. 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. 3. The Company has previously announced that as at close of business on 18 August 2005, GS Inc had a notifiable interest in 50,185,336 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: September 5, 2005 BRITISH ENERGY GROUP PLC By:____John Searles____ Name: John Searles Title: Director - Investor Relations