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) 27 October 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 42,272,966 4.09% 495,343 0.05% securities (2) Derivatives 744,319 0.07% 776,346 0.08% (other than options) (3) Options and 0 0.00% 0 0.00% agreements to purchase/sell Total 43,017,285 4.16% 1,271,689 0.12% (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 2,714 7.2350 Purchase 25,000 7.2134 Purchase 4,720 7.2337 Purchase 3,705 7.2784 Purchase 500 7.2480 Purchase 2,100 7.2317 Purchase 21,888 7.2399 Purchase 10,507 7.2839 Purchase 1,752 7.2350 Purchase 1,835 7.4000 Purchase 1,297 7.1650 Purchase 1,432 7.4000 Purchase 3,428 7.2350 Purchase 11,141 7.2350 Purchase 3,366 7.2350 Sale 500 7.2480 Sale 55,689 7.2838 Sale 10,088 7.2827 Sale 3,033 7.2889 Sale 600 7.2888 Sale 25,000 7.2715 (b) Derivatives transactions (other than options) Product name, Long/Short Number of Price per (e.g. CFD) (Note 6) Securities unit (GBP) CFD Long 500 7.248 CFD Long 10088 7.2827 CFD Long 55689 7.2838 CFD Long 600 7.2888 CFD Long 3033 7.2889 CFD Short 2100 7.2317 CFD Short 4720 7.2337 CFD Short 21888 7.2398 CFD Short 500 7.248 CFD Short 3705 7.2783 CFD Short 10507 7.2838 (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 28 October 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) Notes The Notes on Form 8.3 can be viewed on the Takeover Panel's website at www.thetakeoverpanel.org.uk

Companies

Barclays (BARC)
UK 100

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