Holding(s) in Company

Scottish & Southern Energy PLC
11 January 2008


Form TR-1 with annex. FSA Version 2.1 updated April 2007

For filings with the FSA include the annex
For filings with issuer exclude the annex

TR-1: Notifications of Major Interests in Shares

1. Identity of the issuer or the underlying      Scottish and Southern Energy
issuer of existing shares to which voting rights plc
are attached:                                    --------------------
------------------------------
2. Reason for notification (yes/no)
------------------------------------------------
                                                                      --------
An acquisition or disposal of voting rights                           Yes
------------------------------------------                            --------
An acquisition or disposal of financial instruments which may result
in the acquisition of shares already issued to which voting rights    --------
are attached
------------------------------------------
An event changing the breakdown of voting rights                      
------------------------------------------                            --------
Other (please specify):______________
------------------------------------------                            --------
3. Full name of person(s) subject to     Capital Group International, Inc
notification obligation:                 ------------------------
--------------------------
4. Full name of shareholder(s) (if
different from 3):                       -----------------------
--------------------------
5. Date of transaction (and date on      9 January 2008
which the threshold is crossed or        ------------------------
reached if different):
--------------------------
6. Date on which issuer notified:        10 January 2008
--------------------------               ------------------------
7. Threshold(s) that is/are crossed or
reached:                                 3%
--------------------------               ------------------------



8: Notified Details

A: Voting rights attached to shares

Class/   Situation previous to the   Resulting situation after the triggering
type of  triggering transaction      transaction
shares
If
possible Number of     Number of     Number of     Number of voting     Percentage of
use ISIN shares        voting rights shares        rights               voting rights
code                                               Direct Indirect      Direct Indirect

Ord 50p   26,408,837    26,408,837    25,894,737           25,894,737           2.9967%


B: Financial Instruments

Resulting situation after the triggering transaction
Type of     Expiration Exercise/     No. of voting rights that may   Percentage
financial   date       conversion    be acquired (if the instrument  of voting
instrument             period/date   exercised/converted)            rights

N/A



Total (A+B)
Number of voting rights              Percentage of voting rights

   25,894,737                                      2.9967%



9. Chain of controlled undertakings through which the voting rights and /or the
financial instruments are effectively held, if applicable:


Proxy Voting:
10. Name of proxy holder:
11. Number of voting rights proxy holder will cease to hold:
12. Date on which proxy holder will cease to hold voting rights:

13. Additional information:
14 Contact name:
15. Contact telephone name:


For notes on how to complete form TR-1 please see the FSA website.

Note: Annex should only be submitted to the FSA not the issuer

Annex: Notification of major interests in shares



A: Identity of the persons or legal entity subject to the notification
obligation
Full name                                     Capital Group International, Inc
(including legal form of legal entities)
Contact address                               11100 Santa Monica Blvd., 15th
                                              Floor
(registered office for legal entities)        Los Angeles, California 90025
Phone number & email                          [phone]
Other useful information
(at least legal representative for legal
persons)

B: Identity of the notifier, if applicable
Full name                                       Christopher Aquino
Contact address                                 11100 Santa Monica Blvd., 15th
                                                Floor, Los Angeles, California
                                                90025
Phone number &
email                                           [phone]
Other useful information                        Fax: [phone]
(e.g. functional relationship with the person   Email: [e-mail]
or legal entity subject to the notification
obligation)

C: Additional information








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