<ARTICLE>                          UT
<LEGEND>
THIS SCHEDULE  CONTAINS  SUMMARY  FINANCIAL  INFORMATION  EXTRACTED  FROM PUBLIC
SERVICE  COMPANY OF COLORADO AND  SUBSIDIARIES  CONSOLIDATED  CONDENSED  BALANCE
SHEET AS OF JUNE 30, 2000 AND  CONSOLIDATED  CONDENSED  STATEMENTS OF INCOME AND
CASH  FLOWS FOR THE SIX  MONTHS  ENDED  JUNE 30,  2000 AND IS  QUALIFIED  IN ITS
ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.

<CIK>                              0000081018
<NAME>                             Public Service Company of Colorado
<MULTIPLIER>                             1,000

                                
<PERIOD-TYPE>                            6-MOS
<FISCAL-YEAR-END>                  DEC-31-1999
<PERIOD-END>                       JUN-30-2000
<BOOK-VALUE>                          PER-BOOK
<TOTAL-NET-UTILITY-PLANT>            4,428,962
<OTHER-PROPERTY-AND-INVEST>            206,384
<TOTAL-CURRENT-ASSETS>                 502,299
<TOTAL-DEFERRED-CHARGES>               302,022
<OTHER-ASSETS>                               0
<TOTAL-ASSETS>                       5,439,667
<COMMON>                                     0
<CAPITAL-SURPLUS-PAID-IN>            1,414,835
<RETAINED-EARNINGS>                    428,039
<TOTAL-COMMON-STOCKHOLDERS-EQ>       1,842,874
<PREFERRED-MANDATORY>                  194,000
<PREFERRED>                                  0
<LONG-TERM-DEBT-NET>                 1,628,447
<SHORT-TERM-NOTES>                           0
<LONG-TERM-NOTES-PAYABLE>                    0
<COMMERCIAL-PAPER-OBLIGATIONS>         295,300
<LONG-TERM-DEBT-CURRENT-PORT>          169,723
<PREFERRED-STOCK-CURRENT>                    0
<CAPITAL-LEASE-OBLIGATIONS>             53,080
<LEASES-CURRENT>                         2,265
<OTHER-ITEMS-CAPITAL-AND-LIAB>       1,253,978
<TOT-CAPITALIZATION-AND-LIAB>        5,439,667
<GROSS-OPERATING-REVENUE>            1,270,629
<INCOME-TAX-EXPENSE>                    65,453
<OTHER-OPERATING-EXPENSES>             998,757
<TOTAL-OPERATING-EXPENSES>           1,064,210
<OPERATING-INCOME-LOSS>                206,419
<OTHER-INCOME-NET>                       3,869
<INCOME-BEFORE-INTEREST-EXPEN>         210,288
<TOTAL-INTEREST-EXPENSE>                80,608
<NET-INCOME>                           129,680
<PREFERRED-STOCK-DIVIDENDS>                  0
<EARNINGS-AVAILABLE-FOR-COMM>          129,680
<COMMON-STOCK-DIVIDENDS>                47,691
<TOTAL-INTEREST-ON-BONDS>               65,320
<CASH-FLOW-OPERATIONS>                 271,177
<EPS-BASIC>                               0.00
<EPS-DILUTED>                             0.00