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               10 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     229,400,099     6.18%      5,493,530     0.15%
securities
(2) Derivatives   21,761,412     0.59%      2,959,949     0.08%
(other than
options)
(3) Options and            0     0.00%              0     0.00%
agreements to
purchase/sell
Total            251,161,511     6.77%      8,453,479     0.23%

(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         15,347                3.1953
Purchase         23,350                3.2030
Purchase         229                   3.2350
Purchase         112,118               3.1841
Purchase         972                   Transfer
Purchase         18,825                3.2325
Purchase         700                   3.1800
Purchase         12,296                3.1903
Purchase         195,308               3.1957
Purchase         140,463               3.1885
Purchase         46,728                3.2006
Purchase         6,944                 3.2000
Purchase         6,056                 3.2425
Purchase         38,300                3.2176
Purchase         3,917                 3.2400
Purchase         10,226                3.2000
Purchase         11,202                3.2007
Purchase         523,324               3.2000
Sale             445                   3.1982
Sale             21,269                3.1822
Sale             700                   3.1800
Sale             1,220                 Transfer
Sale             68,267                3.2014
Sale             2,000                 3.1782
Sale             1,700                 3.1728
Sale             1,250                 3.1907
Sale             30,491                3.1841
Sale             523,324               3.2000
Sale             1,000                 3.1980
Sale             835                   3.1728
Sale             85,723                3.2008
Sale             712                   Transfer
Sale             202,648               3.1916
Sale             6,348                 3.2425
Sale             1,134                 3.1832
Sale             1,000                 3.1728
Sale             203,758               3.1900
Sale             1,395                 3.1728
Sale             745                   3.1983
Sale             46,728                3.2000


(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          700           3.18
CFD            Long          21269         3.1821
CFD            Long          30491         3.1841
CFD            Long          9325          3.1899
CFD            Long          203758        3.19
CFD            Long          202648        3.1915
CFD            Long          163472        3.1985
CFD            Long          46728         3.2
CFD            Long          85723         3.2007
CFD            Long          68267         3.2014
CFD            Long          14547         3.2016
CFD            Long          94723         3.2017
CFD            Short         700           3.18
CFD            Short         112118        3.184
CFD            Short         140463        3.1885
CFD            Short         12296         3.1903
CFD            Short         15347         3.1953
CFD            Short         195308        3.1956
CFD            Short         46728         3.2005
CFD            Short         23350         3.2029
CFD            Short         38300         3.2176
CFD            Short         18825         3.2324
CFD            Short         229           3.235
CFD            Short         6056          3.2425

(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                         11 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