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               09 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     229,436,486     6.18%      5,101,270     0.14%
securities
(2) Derivatives   21,102,487     0.57%      2,885,237     0.08%
(other than
options)
(3) Options and            0     0.00%              0     0.00%
agreements to
purchase/sell
Total            250,538,973     6.75%      7,986,507     0.22%

(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           7,155               3.2438
Purchase           7,423               3.2639
Purchase           20,716              3.2551
Purchase           15,754              3.2639
Purchase           14,676              3.2438
Purchase           11,431              3.2794
Purchase           9,927               3.276
Purchase           6,707               3.2551
Purchase           16,049              3.2794
Purchase           51,152              3.276
Purchase           7,685               3.2639
Purchase           13,310              3.2676
Purchase           10,346              3.2794
Purchase           20,044              3.2794
Purchase           8,378               3.2551
Purchase           14,400              3.2551
Purchase           6,927               3.276
Purchase           10,969              3.2639
Purchase           10,215              3.2438
Purchase           7,955               3.2794
Purchase           9,991               3.2794
Purchase           10,168              3.2551
Purchase           3,196               3.2682
Purchase           243                 Transfer
Purchase           58,278              3.2683
Purchase           15,100              3.2475
Purchase           67,996              3.246
Purchase           500                 3.2425
Purchase           126,842             3.2458
Purchase           1,800               3.2731
Purchase           24,785              3.2721
Purchase           106,373             3.2551
Purchase           60,886              3.2859
Purchase           75,548              3.2438
Purchase           150,709             3.2722
Purchase           160,038             3.276
Purchase           332,892             3.2551
Purchase           253,839             3.2639
Purchase           41,656              3.2676
Purchase           236,410             3.2438
Purchase           143,183             3.2794
Purchase           16,343              3.1517
Purchase           81,118              3.2639
Purchase           4,782               3.2405
Purchase           9,092               3.2794
Purchase           44,378              3.2637
Purchase           6,986               3.2364
Purchase           31,616              3.2475
Purchase           424                 3.2083
Purchase           14,440              3.2475
Purchase           8,049               3.2794
Purchase           17,406              3.24
Purchase           14,359              3.2639
Purchase           4,508               3.21
Purchase           123,082             3.24
Purchase           18,867              3.2551
Purchase           45,758              3.2794
Purchase           9,054               3.276
Purchase           10,414              3.2794
Purchase           13,371              3.2438
Purchase           24,810              3.2533
Purchase           6,913               3.2438
Purchase           9,825               3.2551
Sale               1,800               3.255
Sale               2,494               3.255
Sale               2,250               3.255
Sale               2,000               3.255
Sale               3,600               3.255
Sale               356                 3.255
Sale               1,400               3.255
Sale               1,300               3.255
Sale               2,750               3.255
Sale               1,230               3.255
Sale               3,000               3.255
Sale               2,000               3.255
Sale               1,260               3.255
Sale               2,000               3.255
Sale               1,004               3.2454
Sale               1,800               3.255
Sale               2,500               3.255
Sale               1,575               3.255
Sale               3,000               3.255
Sale               6,500               3.255
Sale               271,144             3.2629
Sale               1,800               3.255
Sale               1,000               3.255
Sale               2,000               3.255
Sale               800                 3.255
Sale               2,000               3.255
Sale               356                 3.2809
Sale               5,900               3.265
Sale               55,945              3.2955
Sale               6,300               3.242
Sale               60,886              3.24
Sale               15,402              3.2475
Sale               16,540              3.16
Sale               20,180              3.2475
Sale               243                 Transfer
Sale               500                 3.2425
Sale               57,719              3.2777
Sale               64,472              3.24
Sale               3,600               3.255
Sale               117,359             3.249
Sale               1,134               3.255
Sale               1,500               3.255
Sale               1,800               3.255
Sale               1,800               3.2731
Sale               1,575               3.255
Sale               1,069               3.255
Sale               1,400               3.255
Sale               390                 3.255
Sale               1,800               3.255
Sale               1,260               3.255
Sale               4,050               3.255
Sale               2,700               3.255
Sale               1,080               3.255
Sale               125,131             3.2749
Sale               1,800               3.255
Sale               1,660               3.255
Sale               900                 3.255
Sale               1,170               3.2705
Sale               2,000               3.255
Sale               800                 3.255
Sale               1,069               3.255
Sale               1,192               3.255
Sale               792                 3.255
Sale               1,000               3.255
Sale               2,000               3.255
Sale               2,500               3.255
Sale               5,000               3.255
Sale               1,413               3.255
Sale               810                 3.255
Sale               2,500               3.255
Sale               4,000               3.255
Sale               700                 3.228
Sale               1,750               3.255
Sale               2,000               3.255
Sale               1,250               3.255
Sale               1,080               3.255
Sale               3,500               3.255
Sale               1,500               3.255
Sale               2,000               3.255
Sale               2,500               3.255
Sale               2,500               3.255
Sale               4,500               3.255
Sale               4,000               3.255
Sale               1,350               3.255
Sale               819                 3.255
Sale               1,000               3.255
Sale               50,122              3.2475
Sale               14,440              3.2475
Sale               1,900               3.2403
Sale               1,575               3.255
Sale               1,850               3.255
Sale               1,530               3.255
Sale               3,000               3.255
Sale               1,800               3.255
Sale               1,201               3.255
Sale               2,000               3.255
Sale               2,000               3.255
Sale               1,260               3.2454
Sale               900                 3.255
Sale               2,600               3.255
Sale               5,850               3.24
Sale               1,250               3.255
Sale               1,000               3.2403
Sale               14,521              3.25
Sale               1,485               3.255
Sale               2,700               3.255
Sale               756                 3.255
Sale               1,350               3.255
Sale               2,000               3.255
Sale               2,000               3.255
Sale               1,260               3.255
Sale               2,000               3.255
Sale               702                 3.255
Sale               3,780               3.255
Sale               2,500               3.255



(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          6803          3.2088
CFD            Long          3953          3.2093
CFD            Long          3506          3.2098
CFD            Long          42188         3.21
CFD            Long          64472         3.24
CFD            Long          14031         3.2407
CFD            Long          6300          3.242
CFD            Long          500           3.2425
CFD            Long          340100        3.2455
CFD            Long          295938        3.2485
CFD            Long          117359        3.2489
CFD            Long          271144        3.2628
CFD            Long          432167        3.2647
CFD            Long          5900          3.265
CFD            Long          1800          3.273
CFD            Long          125131        3.2749
CFD            Long          57719         3.2776
CFD            Long          523731        3.279
CFD            Long          19913         3.2912
CFD            Long          55945         3.2954
CFD            Short         4782          3.2404
CFD            Short         500           3.2425
CFD            Short         126842        3.2457
CFD            Short         67996         3.2459
CFD            Short         15100         3.2475
CFD            Short         3196          3.2682
CFD            Short         58278         3.2683
CFD            Short         24785         3.2721
CFD            Short         150709        3.2722
CFD            Short         1800          3.273

(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                         10 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)


Notes

The Notes on Form 8.3 can be viewed on the Takeover Panel's website at
www.thetakeoverpanel.org.uk