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


                                December 19, 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: De-Registration under SEC dated 19 December, 2005


British Energy Group plc

19 December 2005


                    British Energy Group plc (the "Company")

De-registration under the U.S. Securities Exchange Act of 1934, as amended,
Filing of Form 15 with the U.S. Securities and Exchange Commission ("SEC")

The Company announces that on 16 December 2005 it filed a Form 15 with the SEC.
De-registration is expected to occur 90 days after 16 December 2005 or such
shorter period as the SEC may determine.

Contact:
 Andrew Dowler                            020 7831 3113 (Media Enquiries)
 John Searles                             01506 408 715 (Investor Relations)


                                   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:  December 19, 2005                   BRITISH ENERGY GROUP PLC

                                           By:____John Searles____

                                           Name:  John Searles
                                           Title: Director - Investor Relations