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 05, 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 05 September 2005 5 September 2005 British Energy Group plc UK COMPANIES ACT 1985 - SECTIONS 198-202 - British Energy Group plc (the "Company") The Company has received notice as follows: As at 30 August 2005, Barclays PLC through the legal entities listed below, had a notifiable interest in 27,851,871 ordinary shares of British Energy Group plc, representing 4.96% of the issued share capital of 561,016,515 units. Legal Entity Holding Percentage Held Barclays Life Assurance Co Ltd 962,874 .1716 Barclays Capital Securities 16,010,000 2.8537 Barclays Global Investors Japan Ltd 134,263 .0239 Barclays Global Investors Ltd 10,148,660 1.8090 Barclays Bank Trust Company 32 .0001 Barclays Global Investors Australia Ltd 38,265 .0068 Barclays Global Investors, N.A 551,247 .0983 Gerrard Ltd 6,517 .0012 Barclays Bank PLC 13 .0001 Group Holding 4.9647 Registered Holder Account Holding Designation Barclays Capital Nominees LIMI 13 Barclays Capital Nominees LIMI 16,010,000 Barclays Trust Co & Others 32 BNP Paribas 9,141 Boiss Nominees Ltd 4224361 240,046 Chase Nominees Ltd 16376 301,992 Chase Nominees Ltd 20947 3,472,892 Chase Nominees Ltd 21359 163,201 Chase Nominees Ltd 28270 61,172 Chase Nominees Ltd 28270 213,934 CIBC Mellon Global Securities 5,312 Investors Bank and Trust Co 4,067 Investors Bank and Trust Co 8,314 Investors Bank and Trust Co 44,269 Investors Bank and Trust Co 40,582 Investors Bank and Trust Co 92,865 Investors Bank and Trust Co 262,012 Investors Bank and Trust Co 8,356 JP Morgan (BGI Custody) 16331 177,197 JP Morgan (BGI Custody) 16341 301,868 JP Morgan (BGI Custody) 16341 105,362 JP Morgan (BGI Custody) 16344 39,377 JP Morgan (BGI Custody) 16345 63,964 JP Morgan (BGI Custody) 16400 5,565,818 JP Morgan (BGI Custody) 18409 404,711 JP Morgan Chase Bank 38,265 JP Morgan Chase Bank 37,064 JP Morgan Chase Bank 43,185 JP Morgan Chase Bank 31,753 JP Morgan Chase Bank 22,261 Mellon Trust - US Custodian 12,854 Mellon Trust of New England 16,418 Northern Trust Bank - BGI SEPA 19,462 Northern Trust Bank - BGI SEPA 17,452 Northern Trust Bank - BGI SEPA 4,215 R C Greig Nominees Limited RC1 4,224 R C Greig Nominees Limited a/c AK1 2,293 State Street Trust of Canada 5,928 Total 27,851,871 On 19 August 2005, the Company disclosed that Barclays PLC no longer had a notifiable interest in the capital of the company. 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 05, 2005 BRITISH ENERGY GROUP PLC By:____John Searles____ Name: John Searles Title: Director - Investor Relations