<ARTICLE> UT
<LEGEND>
This schedule contains summary financial information extracted from Southern
Investments UK plc Form 10-Q for the quarter ended June 30, 1997, 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>                                                 3-MOS
<FISCAL-YEAR-END>                                       MAR-31-1998
<PERIOD-END>                                            JUN-30-1997
<EXCHANGE-RATE>                                              1.6650
<BOOK-VALUE>                                               PER-BOOK
<TOTAL-NET-UTILITY-PLANT>                                      1239
<OTHER-PROPERTY-AND-INVEST>                                     320
<TOTAL-CURRENT-ASSETS>                                          127
<TOTAL-DEFERRED-CHARGES>                                          0
<OTHER-ASSETS>                                                    0
<TOTAL-ASSETS>                                                1,686
<COMMON>                                                          0
<CAPITAL-SURPLUS-PAID-IN>                                       500
<RETAINED-EARNINGS>                                            (125)
<TOTAL-COMMON-STOCKHOLDERS-EQ>                                  375
<PREFERRED-MANDATORY>                                             0
<PREFERRED>                                                       0
<LONG-TERM-DEBT-NET>                                            351
<SHORT-TERM-NOTES>                                              222
<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>                                  738
<TOT-CAPITALIZATION-AND-LIAB>                                 1,686
<GROSS-OPERATING-REVENUE>                                       172
<OTHER-OPERATING-EXPENSES>                                      145
<TOTAL-OPERATING-EXPENSES>                                      145
<OPERATING-INCOME-LOSS>                                          27
<OTHER-INCOME-NET>                                                5
<INCOME-TAX-EXPENSE>                                              5
<INCOME-BEFORE-INTEREST-EXPEN>                                   27
<TOTAL-INTEREST-EXPENSE>                                         13
<NET-INCOME>                                                     14
<PREFERRED-STOCK-DIVIDENDS>                                       0
<EARNINGS-AVAILABLE-FOR-COMM>                                     0
<COMMON-STOCK-DIVIDENDS>                                         25
<TOTAL-INTEREST-ON-BONDS>                                         0
<CASH-FLOW-OPERATIONS>                                           51
<EPS-PRIMARY>                                                     0
<EPS-DILUTED>                                                     0