<ARTICLE> UT
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION
EXTRACTED FROM UNISOURCE ENERGY CORPORATION'S FINANCIAL
STATEMENTS AS OF SEPTEMBER 30,2000 AND FOR THE NINE-MONTHS
ENDED SEPTEMBER 30, 2000 AND IS QUALIFIED IN ITS ENTIRETY
BY REFERENCE TO SUCH FINANCIAL STATEMENTS.

<CIK> 0000941138
<NAME> UNISOURCE ENERGY CORPORATION
<MULTIPLIER> 1,000

                             
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          DEC-31-2000
<PERIOD-END>                               SEP-30-2000
<BOOK-VALUE>                                  PER-BOOK
<TOTAL-NET-UTILITY-PLANT>                    1,712,637
<OTHER-PROPERTY-AND-INVEST>                    120,500
<TOTAL-CURRENT-ASSETS>                         324,852
<TOTAL-DEFERRED-CHARGES>                       446,521
<OTHER-ASSETS>                                       0
<TOTAL-ASSETS>                               2,604,510
<COMMON>                                       642,703
<CAPITAL-SURPLUS-PAID-IN>                            0
<RETAINED-EARNINGS>                          (294,528)
<TOTAL-COMMON-STOCKHOLDERS-EQ>                 348,175
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<LONG-TERM-DEBT-NET>                         1,132,395
<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>                    852,665
<LEASES-CURRENT>                                25,914
<OTHER-ITEMS-CAPITAL-AND-LIAB>                 243,636
<TOT-CAPITALIZATION-AND-LIAB>                2,604,510
<GROSS-OPERATING-REVENUE>                      757,454
<INCOME-TAX-EXPENSE>                             4,238
<OTHER-OPERATING-EXPENSES>                     608,781
<TOTAL-OPERATING-EXPENSES>                     613,019
<OPERATING-INCOME-LOSS>                        144,435
<OTHER-INCOME-NET>                               8,998
<INCOME-BEFORE-INTEREST-EXPEN>                 153,433
<TOTAL-INTEREST-EXPENSE>                       125,293
<NET-INCOME>                                    28,140
<PREFERRED-STOCK-DIVIDENDS>                          0
<EARNINGS-AVAILABLE-FOR-COMM>                   28,140
<COMMON-STOCK-DIVIDENDS>                         2,595
<TOTAL-INTEREST-ON-BONDS>                            0
<CASH-FLOW-OPERATIONS>                         134,169
<EPS-BASIC>                                        .87
<EPS-DILUTED>                                      .86