<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>                                           1,711
<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>                            1,711
<GROSS-OPERATING-REVENUE>                                  602
<OTHER-OPERATING-EXPENSES>                                 512
<TOTAL-OPERATING-EXPENSES>                                 512
<OPERATING-INCOME-LOSS>                                     90
<OTHER-INCOME-NET>                                           6
<INCOME-TAX-EXPENSE>                                        22
<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
<CASH-FLOW-OPERATIONS>                                      52
<TOTAL-INTEREST-ON-BONDS>                                    0
<EPS-PRIMARY>                                                0
<EPS-DILUTED>                                                0