<ARTICLE>                     5
<LEGEND>
     THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
10-QSB FOR THE PERIOD ENDED DECEMBER 31, 1998, FOR ONSITE ENERGY CORPORATION AND
IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
       
                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                              JUN-30-1999
<PERIOD-END>                                   DEC-31-1998
<CASH>                                         628,594
<SECURITIES>                                   0
<RECEIVABLES>                                  5,752,267
<ALLOWANCES>                                   13,000
<INVENTORY>                                    187,338
<CURRENT-ASSETS>                               8,770,327
<PP&E>                                         1,711,152
<DEPRECIATION>                                 1,066,323
<TOTAL-ASSETS>                                 13,927,758
<CURRENT-LIABILITIES>                          14,125,604
<BONDS>                                        0
<PREFERRED-MANDATORY>                          0
<PREFERRED>                                    423
<COMMON>                                       18,500
<OTHER-SE>                                     1,800,627
<TOTAL-LIABILITY-AND-EQUITY>                   13,927,758
<SALES>                                        18,639,043
<TOTAL-REVENUES>                               18,639,043
<CGS>                                          15,650,366
<TOTAL-COSTS>                                  6,003,920
<OTHER-EXPENSES>                               (66,049)
<LOSS-PROVISION>                               0
<INTEREST-EXPENSE>                             168,311
<INCOME-PRETAX>                                (1,610,506)
<INCOME-TAX>                                   0
<INCOME-CONTINUING>                            (3,117,505)
<DISCONTINUED>                                 0
<EXTRAORDINARY>                                0
<CHANGES>                                      0
<NET-INCOME>                                   (3,117,505)
<EPS-PRIMARY>                                  (0.17)
<EPS-DILUTED>                                  (0.17)