<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 SEPTEMBER 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> 9-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-END> SEP-30-2000
<CASH> 9,526
<SECURITIES> 49,977
<RECEIVABLES> 4,449
<ALLOWANCES> 0
<INVENTORY> 3,117
<CURRENT-ASSETS> 67,739
<PP&E> 338,684
<DEPRECIATION> 1,990
<TOTAL-ASSETS> 414,473
<CURRENT-LIABILITIES> 39,123
<BONDS> 328,850
0
0
<COMMON> 0
<OTHER-SE> 46,500
<TOTAL-LIABILITY-AND-EQUITY> 414,473
<SALES> 8,763
<TOTAL-REVENUES> 0
<CGS> 0
<TOTAL-COSTS> 11,013
<OTHER-EXPENSES> 0
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 3,662
<INCOME-PRETAX> (5,552)
<INCOME-TAX> 0
<INCOME-CONTINUING> (5,552)
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> (5,552)
<EPS-BASIC> 0
<EPS-DILUTED> 0
</TABLE>