<ARTICLE> UT
<LEGEND>
This schedule contains summary financial information extracted from Southern
Investments UK plc Form 10-Q for the quarter ended December 31, 1996, and
is qualified in its entirety by reference to such financial statements.
Values are in (pound) sterling.
</LEGEND>
<MULTIPLIER> 1,000,000
<CURRENCY> British Pounds Sterling
       
                                                    
<PERIOD-TYPE>                                          9-MOS
<FISCAL-YEAR-END>                                       MAR-31-1997
<PERIOD-END>                                            DEC-31-1996
<EXCHANGE-RATE>                                          1.7123
<BOOK-VALUE>                                            PER-BOOK
<TOTAL-NET-UTILITY-PLANT>                                  1230
<OTHER-PROPERTY-AND-INVEST>                                 318
<TOTAL-CURRENT-ASSETS>                                      163
<TOTAL-DEFERRED-CHARGES>                                      0
<OTHER-ASSETS>                                                0
<TOTAL-ASSETS>                                             1711
<COMMON>                                                      0
<CAPITAL-SURPLUS-PAID-IN>                                   500
<RETAINED-EARNINGS>                                        (134)
<TOTAL-COMMON-STOCKHOLDERS-EQ>                              366
<PREFERRED-MANDATORY>                                         0
<PREFERRED>                                                   0
<LONG-TERM-DEBT-NET>                                        300
<SHORT-TERM-NOTES>                                          332
<LONG-TERM-NOTES-PAYABLE>                                     0
<COMMERCIAL-PAPER-OBLIGATIONS>                                0
<LONG-TERM-DEBT-CURRENT-PORT>                                 0
<PREFERRED-STOCK-CURRENT>                                     0
<CAPITAL-LEASE-OBLIGATIONS>                                   0
<LEASES-CURRENT>                                              0
<OTHER-ITEMS-CAPITAL-AND-LIAB>                              713
<TOT-CAPITALIZATION-AND-LIAB>                              1711
<GROSS-OPERATING-REVENUE>                                   602
<INCOME-TAX-EXPENSE>                                         22
<OTHER-OPERATING-EXPENSES>                                  512
<TOTAL-OPERATING-EXPENSES>                                  512
<OPERATING-INCOME-LOSS>                                      90
<OTHER-INCOME-NET>                                            6
<INCOME-BEFORE-INTEREST-EXPEN>                               74
<TOTAL-INTEREST-EXPENSE>                                     39
<NET-INCOME>                                                 35
<PREFERRED-STOCK-DIVIDENDS>                                   0
<EARNINGS-AVAILABLE-FOR-COMM>                                 0
<COMMON-STOCK-DIVIDENDS>                                     37
<TOTAL-INTEREST-ON-BONDS>                                     0
<CASH-FLOW-OPERATIONS>                                       52
<EPS-PRIMARY>                                                 0
<EPS-DILUTED>                                                 0