<ARTICLE> 5
<LEGEND>
This  schedule  contains  summary  financial   information  extracted  from  the
Registrant's  unaudited interim  financial  statements for the nine month period
ended  September 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>                                    9-MOS
<FISCAL-YEAR-END>                          DEC-31-2000
<PERIOD-END>                               SEP-30-2000
<CASH>                                       1,121,063
<SECURITIES>                                10,672,597<F1>
<RECEIVABLES>                                1,279,045
<ALLOWANCES>                                         0
<INVENTORY>                                          0
<CURRENT-ASSETS>                             3,381,470<F2>
<PP&E>                                      16,824,198
<DEPRECIATION>                              (3,691,680)
<TOTAL-ASSETS>                              34,833,907
<CURRENT-LIABILITIES>                        2,882,488<F3>
<BONDS>                                      2,894,884
<COMMON>                                             0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<OTHER-SE>                                  23,334,019<F4>
<TOTAL-LIABILITY-AND-EQUITY>                34,833,907
<SALES>                                      5,580,374
<TOTAL-REVENUES>                             5,857,124
<CGS>                                        4,445,050
<TOTAL-COSTS>                                4,445,050
<OTHER-EXPENSES>                             4,779,010
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                   0
<INCOME-PRETAX>                             (4,065,651)<F5>
<INCOME-TAX>                                         0
<INCOME-CONTINUING>                         (4,065,651)<F5>
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                (4,065,651)<F5>
<EPS-BASIC>                                     (8,525)
<EPS-DILUTED>                                   (8,525)

<FN>
<F1>Investment  in  hydroelectric  project,  Santee  River  project  and Biomass
project accounted for on equity method in financial statements.
<F2>Includes $907,125 due from affiliates.
<F3>Includes $703,057 due to affiliates.
<F4>Shareholders' equity of $23,505,746 less managing share-
holders' accumulated deficit of $171,727.
<F5>After deduction of minority interest in Providence Project
earnings of $288,911.
</FN>