<ARTICLE> 5
<LEGEND>
This  schedule  contains  summary  financial   information  extracted  from  the
Registrant's  unaudited  interim  financial  statements for the six month period
ended June 30,  2000 and is  qualified  in its  entirety by  reference  to those
financial statements.
</LEGEND>
<CIK> 0000930364
<NAME> RIDGEWOOD ELECTRIC POWER TRUST IV

                             
<PERIOD-TYPE>                                    6-MOS
<FISCAL-YEAR-END>                          DEC-31-2000
<PERIOD-END>                               JUN-30-2000
<CASH>                                       1,503,221
<SECURITIES>                                15,511,542<F1>
<RECEIVABLES>                                  649,820
<ALLOWANCES>                                         0
<INVENTORY>                                          0
<CURRENT-ASSETS>                             2,968,677<F2>
<PP&E>                                      16,790,857
<DEPRECIATION>                              (3,413,157)
<TOTAL-ASSETS>                              39,512,284
<CURRENT-LIABILITIES>                        2,644,597<F3>
<BONDS>                                      3,094,419
<COMMON>                                             0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<OTHER-SE>                                  27,981,732<F4>
<TOTAL-LIABILITY-AND-EQUITY>                39,512,284
<SALES>                                      3,644,548
<TOTAL-REVENUES>                             3,829,048
<CGS>                                        3,091,687
<TOTAL-COSTS>                                3,091,687
<OTHER-EXPENSES>                               704,108
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                   0
<INCOME-PRETAX>                                 81,862<F5>
<INCOME-TAX>                                         0
<INCOME-CONTINUING>                             81,862<F5>
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    81,862<F5>
<EPS-BASIC>                                        172
<EPS-DILUTED>                                      172

<FN>
<F1>Investment  in  hydroelectric  project,  Santee  River  project  and Biomass
project accounted for on equity method in financial statements.
<F2>Includes $785,447 due from affiliates.
<F3>Includes $453,982 due to affiliates.
<F4>Shareholders' equity of $28,106,981 less managing share-
holders' accumulated deficit of $125,249.
<F5>After deduction of minority interest in Providence Project
earnings of $108,502.
</FN>