<ARTICLE> UT
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED
FROM UNISOURCE ENERGY FINANCIAL STATEMENTS FOR THE PERIOD ENDED
MARCH 31, 2000 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO
SUCH FINANCIAL STATEMENTS.
</LEGEND>
<CIK> 0000941138
<NAME> UNISOURCE ENERGY CORPORATION
<MULTIPLIER> 1,000

                             
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          DEC-31-2000
<PERIOD-END>                               MAR-31-2000
<BOOK-VALUE>                                  PER-BOOK
<TOTAL-NET-UTILITY-PLANT>                    1,723,629
<OTHER-PROPERTY-AND-INVEST>                    128,025
<TOTAL-CURRENT-ASSETS>                         272,791
<TOTAL-DEFERRED-CHARGES>                       474,229
<OTHER-ASSETS>                                       0
<TOTAL-ASSETS>                               2,598,674
<COMMON>                                       641,975
<CAPITAL-SURPLUS-PAID-IN>                            0
<RETAINED-EARNINGS>                          (317,237)
<TOTAL-COMMON-STOCKHOLDERS-EQ>                 324,738
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<LONG-TERM-DEBT-NET>                         1,134,595
<SHORT-TERM-NOTES>                                   0
<LONG-TERM-NOTES-PAYABLE>                            0
<COMMERCIAL-PAPER-OBLIGATIONS>                       0
<LONG-TERM-DEBT-CURRENT-PORT>                   48,603
<PREFERRED-STOCK-CURRENT>                            0
<CAPITAL-LEASE-OBLIGATIONS>                    866,986
<LEASES-CURRENT>                                29,085
<OTHER-ITEMS-CAPITAL-AND-LIAB>                 194,667
<TOT-CAPITALIZATION-AND-LIAB>                2,598,674
<GROSS-OPERATING-REVENUE>                      176,547
<INCOME-TAX-EXPENSE>                           (1,062)
<OTHER-OPERATING-EXPENSES>                     138,241
<TOTAL-OPERATING-EXPENSES>                     137,179
<OPERATING-INCOME-LOSS>                         39,368
<OTHER-INCOME-NET>                               3,323
<INCOME-BEFORE-INTEREST-EXPEN>                  42,691
<TOTAL-INTEREST-EXPENSE>                        42,449
<NET-INCOME>                                       242
<PREFERRED-STOCK-DIVIDENDS>                          0
<EARNINGS-AVAILABLE-FOR-COMM>                      242
<COMMON-STOCK-DIVIDENDS>                             0
<TOTAL-INTEREST-ON-BONDS>                            0
<CASH-FLOW-OPERATIONS>                          16,256
<EPS-BASIC>                                        .01
<EPS-DILUTED>                                      .01