<TABLE> <S> <C>
<ARTICLE> UT
<LEGEND>
This schedule contains summary financial information extracted from Southern
Investments UK plc Form 10-K for the twelve months ended March 31, 2000, and is
qualified in its entirety by reference to such financial statements. Values are
in (pound) sterling.
</LEGEND>
<MULTIPLIER> 1,000,000
<CURRENCY> Pounds Sterling
<S> <C>
<PERIOD-TYPE> 12-MOS
<FISCAL-YEAR-END> MAR-31-2000
<PERIOD-START> APR-1-1999
<PERIOD-END> MAR-31-2000
<EXCHANGE-RATE> 1.5922
<BOOK-VALUE> PER-BOOK
<TOTAL-NET-UTILITY-PLANT> 1,250
<OTHER-PROPERTY-AND-INVEST> 15
<TOTAL-CURRENT-ASSETS> 87
<TOTAL-DEFERRED-CHARGES> 0
<OTHER-ASSETS> 705
<TOTAL-ASSETS> 2,057
<COMMON> 0
<CAPITAL-SURPLUS-PAID-IN> 902
<RETAINED-EARNINGS> (123)
<TOTAL-COMMON-STOCKHOLDERS-EQ> 779
50
0
<LONG-TERM-DEBT-NET> 301
<SHORT-TERM-NOTES> 342
<LONG-TERM-NOTES-PAYABLE> 0
<COMMERCIAL-PAPER-OBLIGATIONS> 0
<LONG-TERM-DEBT-CURRENT-PORT> 0
0
<CAPITAL-LEASE-OBLIGATIONS> 0
<LEASES-CURRENT> 0
<OTHER-ITEMS-CAPITAL-AND-LIAB> 585
<TOT-CAPITALIZATION-AND-LIAB> 2,057
<GROSS-OPERATING-REVENUE> 275
<OTHER-OPERATING-EXPENSES> 143
<TOTAL-OPERATING-EXPENSES> 143
<OPERATING-INCOME-LOSS> 132
<OTHER-INCOME-NET> 209
<INCOME-TAX-EXPENSE> 74
<INCOME-BEFORE-INTEREST-EXPEN> 267
<TOTAL-INTEREST-EXPENSE> 56
<NET-INCOME> 211
0
<EARNINGS-AVAILABLE-FOR-COMM> 0
<COMMON-STOCK-DIVIDENDS> 188
<TOTAL-INTEREST-ON-BONDS> 0
<CASH-FLOW-OPERATIONS> 124
<EPS-BASIC> 0
<EPS-DILUTED> 0
</TABLE>