Director/PDMR Shareholding

Centrica PLC
                  

5 September 2006

Centrica plc
Long Term Incentive Scheme Allocations

Centrica announces that on 4 September 2006 a conditional allocation of ordinary
shares in Centrica plc was made by the trustee of the Centrica Long Term
Incentive Scheme (LTIS) to the following Executive Director:
Executive Director   TSR shares    EPS shares    Total number of shares
                                                 in conditional allocation
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Sam Laidlaw          215,919       215,918       431,837
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The percentage of the allocation eventually to vest is dependent on the
satisfaction of performance criteria over a three-year performance period
commencing on 1 September 2006:

- half of the shares (EPS shares) will be subject to a performance condition
based on Centrica's growth in EPS(1) relative to the growth in RPI (All Items)
over three financial years. Growth in EPS will be calculated by comparing the
Company's EPS figure for the financial period preceding the date of allocation
with that for the financial period three years later(2); and

- half of the shares will be determined by the Company's Total Shareholder
Return (TSR) performance relative to the other companies comprising the LTIS
comparator group - the FTSE 100 at the start of the three-year performance
period (the TSR shares).

At the end of the performance period, the TSR performance condition will be
measured, the same calculation made for all the other 99 companies in the LTIS
comparator group and a ranking list will be compiled(3).

(1) EPS is calculated as the Company's earnings per share, adjusted for
exceptional items and certain re-measurements arising on the application of IAS
32 and IAS 39 (both of which are excluded on the grounds that such standards do
not represent the underlying performance of the business).

The conditional allocations shown above represent the maximum potential award
possible if all performance criteria are met at the end of the three-year
performance period. If and to the extent that the performance criteria are
satisfied at the conclusion of the performance period, the relevant number of
shares will be transferred to executives at the trustee's discretion.

(2) The maximum allocation of EPS shares only vests if the Company's growth in
EPS exceeds growth in RPI at our above 30%. No shares vest if the growth in EPS
over RPI is below 9%. Between 30% and 9% shares vest on a scale from 100% to
25%.

(3) The maximum allocation of TSR shares only vests if the Company's TSR over
the performance period is ranked in 20th position or above in the comparator
group. No shares vest if the TSR over the performance period is ranked below
50th position in the Comparator Group. From 20th to 50th position, shares vest
on a scale from 100% to 25%.

Total share interests held following this notification are as follows:

Executive Director   LTIS allocation  Ordinary Shares
--------------------------------------------------------
Sam Laidlaw          431,837          200,000
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