<ARTICLE> UT
<CIK> 0000100122
<NAME> TUCSON ELECTRIC POWER COMPANY
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-END>                               MAR-31-1999
<BOOK-VALUE>                                  PER-BOOK
<TOTAL-NET-UTILITY-PLANT>                    1,908,454
<OTHER-PROPERTY-AND-INVEST>                     64,017
<TOTAL-CURRENT-ASSETS>                         225,796
<TOTAL-DEFERRED-CHARGES>                       304,761
<OTHER-ASSETS>                                  70,132
<TOTAL-ASSETS>                               2,573,160
<COMMON>                                       640,516
<CAPITAL-SURPLUS-PAID-IN>                            0
<RETAINED-EARNINGS>                          (411,670)
<TOTAL-COMMON-STOCKHOLDERS-EQ>                 228,846
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<LONG-TERM-DEBT-NET>                         1,183,198
<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>                    869,649
<LEASES-CURRENT>                                14,989
<OTHER-ITEMS-CAPITAL-AND-LIAB>                 274,753
<TOT-CAPITALIZATION-AND-LIAB>                2,573,160
<GROSS-OPERATING-REVENUE>                      160,636
<INCOME-TAX-EXPENSE>                           (2,559)
<OTHER-OPERATING-EXPENSES>                     140,146
<TOTAL-OPERATING-EXPENSES>                     137,587
<OPERATING-INCOME-LOSS>                         23,049
<OTHER-INCOME-NET>                               3,353
<INCOME-BEFORE-INTEREST-EXPEN>                  26,402
<TOTAL-INTEREST-EXPENSE>                        27,722
<NET-INCOME>                                   (1,320)
<PREFERRED-STOCK-DIVIDENDS>                          0
<EARNINGS-AVAILABLE-FOR-COMM>                  (1,320)
<COMMON-STOCK-DIVIDENDS>                             0
<TOTAL-INTEREST-ON-BONDS>                            0
<CASH-FLOW-OPERATIONS>                             566
<EPS-PRIMARY>                                        0
<EPS-DILUTED>                                        0