<ARTICLE> UT
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM
UNISOURCE ENERGY CORPORATION'S FINANCIAL STATEMENTS FOR THE PERIOD
ENDED JUNE 30, 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>                               JUN-30-2000
<BOOK-VALUE>                                  PER-BOOK
<TOTAL-NET-UTILITY-PLANT>                    1,721,548
<OTHER-PROPERTY-AND-INVEST>                    128,991
<TOTAL-CURRENT-ASSETS>                         283,838
<TOTAL-DEFERRED-CHARGES>                       465,903
<OTHER-ASSETS>                                       0
<TOTAL-ASSETS>                               2,600,280
<COMMON>                                       642,226
<CAPITAL-SURPLUS-PAID-IN>                            0
<RETAINED-EARNINGS>                          (309,172)
<TOTAL-COMMON-STOCKHOLDERS-EQ>                 333,054
<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>                    1,725
<PREFERRED-STOCK-CURRENT>                            0
<CAPITAL-LEASE-OBLIGATIONS>                    864,698
<LEASES-CURRENT>                                29,416
<OTHER-ITEMS-CAPITAL-AND-LIAB>                 236,792
<TOT-CAPITALIZATION-AND-LIAB>                2,600,280
<GROSS-OPERATING-REVENUE>                      414,678
<INCOME-TAX-EXPENSE>                           (5,235)
<OTHER-OPERATING-EXPENSES>                     330,949
<TOTAL-OPERATING-EXPENSES>                     325,714
<OPERATING-INCOME-LOSS>                         88,964
<OTHER-INCOME-NET>                               6,718
<INCOME-BEFORE-INTEREST-EXPEN>                  95,682
<TOTAL-INTEREST-EXPENSE>                        84,781
<NET-INCOME>                                    10,901
<PREFERRED-STOCK-DIVIDENDS>                          0
<EARNINGS-AVAILABLE-FOR-COMM>                   10,901
<COMMON-STOCK-DIVIDENDS>                         2,594
<TOTAL-INTEREST-ON-BONDS>                            0
<CASH-FLOW-OPERATIONS>                          58,154
<EPS-BASIC>                                        .34
<EPS-DILUTED>                                      .33