<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE BALANCE
SHEETS AND STATEMENTS OF OPERATIONS OF LSP ENERGY LIMITED PARTNERSHIP AS OF AND
FOR THE PERIOD ENDED JUNE 30, 2000 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE
TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<CIK> 0001092436
<NAME> LSP ENERGY LIMITED PARTNERSHIP
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-END> JUN-30-2000
<CASH> 301
<SECURITIES> 12,463
<RECEIVABLES> 0
<ALLOWANCES> 0
<INVENTORY> 3,024
<CURRENT-ASSETS> 16,654
<PP&E> 332,874
<DEPRECIATION> 0
<TOTAL-ASSETS> 359,722
<CURRENT-LIABILITIES> 32,080
<BONDS> 326,000
0
0
<COMMON> 0
<OTHER-SE> 1,642
<TOTAL-LIABILITY-AND-EQUITY> 359,722
<SALES> 0
<TOTAL-REVENUES> 0
<CGS> 0
<TOTAL-COSTS> 1,411
<OTHER-EXPENSES> 0
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 0
<INCOME-PRETAX> (1,411)
<INCOME-TAX> 0
<INCOME-CONTINUING> (1,411)
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> (1,411)
<EPS-BASIC> 0
<EPS-DILUTED> 0
</TABLE>