Rule 8.3 - CENTRICA

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              CENTRICA
Class of relevant security    ORD GBP0.061728395
to which the dealings being
disclosed relate (Note 2)
Date of dealing               24 September 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     236,451,239     6.37%      2,651,873     0.07%
securities
(2) Derivatives   21,301,655     0.57%      1,566,422     0.04%
(other than
options)
(3) Options and      869,985     0.02%                    0.01%
agreements to
purchase/sell
Total            258,622,879     6.97%      4,218,295     0.11%

(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           Price per unit
                   Securities          (GBP)
Purchase           12,562              3.2843
Purchase           22,216              3.3524
Purchase           33,204              3.2843
Purchase           178                 Transfer
Purchase           173,710             3.3323
Purchase           29,525              3.2849
Purchase           117,905             3.3209
Purchase           87,750              3.2616
Purchase           15,300              3.2647
Purchase           1,500               3.3325
Purchase           180,569             3.3068
Purchase           133,500             3.305
Purchase           2,828               3.253
Purchase           4,628               3.37
Purchase           6,087               3.31
Purchase           1,873               3.3794
Purchase           10,673              3.2843
Purchase           24,596              3.2843
Purchase           538,460             3.2892
Purchase           12,541              3.2843
Purchase           5,227               3.3361
Purchase           46,149              3.2843
Purchase           7,869               3.305
Purchase           24,456              3.31
Purchase           20,800              3.2843
Purchase           10,182              3.2843
Purchase           100,952             3.31
Purchase           21,611              3.2843
Sale               1,500               3.29
Sale               1,000               3.29
Sale               990                 3.29
Sale               4,050               3.29
Sale               4,860               3.29
Sale               900                 3.29
Sale               2,507               3.29
Sale               2,250               3.29
Sale               127                 3.29
Sale               900                 3.29
Sale               1,642               3.29
Sale               1,282               3.29
Sale               600                 3.29
Sale               900                 3.29
Sale               2,000               3.29
Sale               742                 3.29
Sale               2,500               3.29
Sale               1,485               3.29
Sale               275                 3.29
Sale               1,867               3.29
Sale               900                 3.29
Sale               900                 3.29
Sale               900                 3.29
Sale               1,755               3.29
Sale               742                 3.29
Sale               1,000               3.29
Sale               810                 3.29
Sale               1,000               3.29
Sale               1,800               3.29
Sale               1,102               3.29
Sale               1,250               3.29
Sale               1,260               3.29
Sale               900                 3.29
Sale               877                 3.29
Sale               1,530               3.29
Sale               138,968             3.2984
Sale               50,250              3.3734
Sale               538,460             3.2892
Sale               485                 3.2933
Sale               31,458              3.302
Sale               17,684              Transfer
Sale               16,550              3.3021
Sale               900                 3.29
Sale               300,824             3.3225
Sale               30,000              3.2304
Sale               21,936              3.3537
Sale               538,460             3.2892
Sale               30,000              3.2304
Sale               312,239             3.3167
Sale               455,040             3.3116
Sale               624                 3.3888
Sale               14,759              3.3537
Sale               16,193              3.3041
Sale               1,000               3.29
Sale               832                 3.29
Sale               382                 3.29
Sale               720                 3.29
Sale               900                 3.29
Sale               1,485               3.29
Sale               810                 3.29
Sale               1,080               3.29
Sale               85,750              3.3051
Sale               855                 3.29
Sale               1,500               3.3325
Sale               900                 3.29
Sale               675                 3.29
Sale               585                 3.29
Sale               178,395             3.2981
Sale               2,300               3.3771
Sale               100,312             3.2984
Sale               3,184               3.29
Sale               2,105               3.29
Sale               3,780               3.29
Sale               1,305               3.29
Sale               900                 3.29
Sale               1,800               3.29
Sale               2,700               3.29
Sale               1,500               3.29
Sale               1,425               3.29
Sale               1,350               3.29
Sale               1,800               3.29
Sale               1,701               3.2417
Sale               900                 3.29
Sale               1,800               3.29
Sale               1,012               3.2503
Sale               900                 3.29
Sale               2,700               3.29
Sale               1,247               3.29
Sale               1,800               3.29
Sale               1,800               3.29
Sale               2,250               3.29
Sale               2,800               3.29
Sale               1,800               3.29
Sale               3,000               3.29
Sale               60,132              3.31
Sale               1,980               3.29
Sale               2,430               3.29
Sale               810                 3.29
Sale               1,230               3.29
Sale               562                 3.29
Sale               2,000               3.29
Sale               1,735               3.29
Sale               14,115              3.2417
Sale               1,230               3.29
Sale               2,000               3.29
Sale               450                 3.29
Sale               363                 3.29
Sale               569                 3.29
Sale               6,300               3.29
Sale               2,385               3.29
Sale               1,070               3.29
Sale               2,000               3.29
Sale               860                 3.29
Sale               900                 3.29
Sale               720                 3.29
Sale               2,600               3.29
Sale               1,600               3.29
Sale               900                 3.29
Sale               900                 3.29
Sale               765                 3.29
Sale               1,500               3.29
Sale               2,700               3.29
Sale               900                 3.29
Sale               1,080               3.29
Sale               2,700               3.29
Sale               729                 3.29
Sale               765                 3.29
Sale               2,110               3.29
Sale               3,960               3.29
Sale               2,000               3.29
Sale               900                 3.29
Sale               2,970               3.2756
Sale               1,300               3.29
Sale               1,080               3.29
Sale               3,600               3.29
Sale               1,620               3.29
Sale               2,125               3.29
Sale               990                 3.29
Sale               1,170               3.29
Sale               1,800               3.29
Sale               3,300               3.29
Sale               1,080               3.29
Sale               1,575               3.29
Sale               820                 3.29
Sale               2,000               3.2756
Sale               2,070               3.29
Sale               1,500               3.29
Sale               1,575               3.29
Sale               900                 3.29
Sale               900                 3.29
Sale               900                 3.29
Sale               900                 3.29
Sale               1,530               3.29
Sale               2,452               3.29
Sale               800                 3.29
Sale               14,000              3.29

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          20391         3.2876
CFD            Long          538460        3.2891
CFD            Long          178395        3.298
CFD            Long          100312        3.2984
CFD            Long          118577        3.3002
CFD            Long          48008         3.302
CFD            Long          16193         3.3041
CFD            Long          85750         3.305
CFD            Long          455040        3.3116
CFD            Long          312239        3.3166
CFD            Long          300824        3.3224
CFD            Long          1500          3.3325
CFD            Long          50250         3.3734
CFD            Long          2300          3.377
CFD            Short         2828          3.2529
CFD            Short         87750         3.2615
CFD            Short         15300         3.2646
CFD            Short         29525         3.2849
CFD            Short         180569        3.3067
CFD            Short         18084         3.3125
CFD            Short         117905        3.3208
CFD            Short         173710        3.3322
CFD            Short         1500          3.3325
CFD            Short         5227          3.336
CFD            Short         22216         3.3524
CFD            Short         20904         3.3581

(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                         25 September 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)


SUPPLEMENTAL FORM 8

DETAILS OF OPEN POSITIONS
(This form should be attached to Form 8.1, Form 8.1(b)(ii) or Form 8.3, as appropriate)


OPEN POSITIONS (Note 1)
Product name,     Written or  Number of securities   Exercise price   Type, e.g.     Expiry date
e.g. call option  purchased   to which the option    (Note 2)         American,
                              or derivative relates                   European etc.
Option            Purchased   869,985                4.0304           EURO           18/12/2008

Notes

1. Where there are open option positions or open derivative positions (except for CFD's), full details should be given.
Full details of any existing agreements to purchase or to sell should also be given on this form.

2. For all prices and other monetary amounts, the currency must be stated.

For details of the Code's dealing disclosure requirements, see Rule 8 and its Notes which can be viewed on the Takeover
Panel's website at www.thetakeoverpanel.org.uk