<TABLE> <S> <C>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
FINANCIAL STATEMENTS OF SOUTHERN ENERGY, INC. FOR THE QUARTER ENDED MARCH 31,
2000 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000,000
<S> <C>
<PERIOD-TYPE> 3-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-START> JAN-01-2000
<PERIOD-END> MAR-31-2000
<CASH> 400
<SECURITIES> 0
<RECEIVABLES> 782
<ALLOWANCES> 35
<INVENTORY> 0
<CURRENT-ASSETS> 1,361
<PP&E> 6,048
<DEPRECIATION> 462
<TOTAL-ASSETS> 13,972
<CURRENT-LIABILITIES> 3,151
<BONDS> 5,215
1,030
0
<COMMON> 0
<OTHER-SE> 3,199
<TOTAL-LIABILITY-AND-EQUITY> 13,972
<SALES> 0
<TOTAL-REVENUES> 521
<CGS> 0
<TOTAL-COSTS> 351
<OTHER-EXPENSES> 75
<LOSS-PROVISION> (28)
<INTEREST-EXPENSE> 147
<INCOME-PRETAX> 95
<INCOME-TAX> (30)
<INCOME-CONTINUING> 95
<DISCONTINUED> 6
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> 101
<EPS-BASIC> 0.37
<EPS-DILUTED> 0
</TABLE>