<ARTICLE> UT
<CIK> 0000100122
<NAME> TUCSON ELECTRIC POWER COMPANY
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-END>                               SEP-30-1998
<BOOK-VALUE>                                  PER-BOOK
<TOTAL-NET-UTILITY-PLANT>                    1,915,494
<OTHER-PROPERTY-AND-INVEST>                     62,195
<TOTAL-CURRENT-ASSETS>                         303,553
<TOTAL-DEFERRED-CHARGES>                       314,681
<OTHER-ASSETS>                                  77,110
<TOTAL-ASSETS>                               2,673,033
<COMMON>                                       639,571
<CAPITAL-SURPLUS-PAID-IN>                            0
<RETAINED-EARNINGS>                          (386,186)
<TOTAL-COMMON-STOCKHOLDERS-EQ>                 253,385
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<LONG-TERM-DEBT-NET>                         1,214,423
<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>                    887,116
<LEASES-CURRENT>                                11,698
<OTHER-ITEMS-CAPITAL-AND-LIAB>                 304,686
<TOT-CAPITALIZATION-AND-LIAB>                2,673,033
<GROSS-OPERATING-REVENUE>                      593,969
<INCOME-TAX-EXPENSE>                            19,398 
<OTHER-OPERATING-EXPENSES>                     466,079
<TOTAL-OPERATING-EXPENSES>                     485,477
<OPERATING-INCOME-LOSS>                        108,492
<OTHER-INCOME-NET>                              16,167
<INCOME-BEFORE-INTEREST-EXPEN>                 124,659
<TOTAL-INTEREST-EXPENSE>                        88,819
<NET-INCOME>                                    35,840 
<PREFERRED-STOCK-DIVIDENDS>                          0
<EARNINGS-AVAILABLE-FOR-COMM>                   35,840 
<COMMON-STOCK-DIVIDENDS>                             0
<TOTAL-INTEREST-ON-BONDS>                            0
<CASH-FLOW-OPERATIONS>                         110,241
<EPS-PRIMARY>                                        0
<EPS-DILUTED>                                        0