FORM 10-Q

                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

               QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d)OF
                      THE SECURITIES EXCHANGE ACT OF 1934.

                  For the quarterly period ended June 30, 2004

                         Commission file Number 0-25430

                        RIDGEWOOD ELECTRIC POWER TRUST IV
            (Exact name of registrant as specified in its charter.)

             Delaware                                   22-3324608
            ---------                                   ----------
          (State or other jurisdiction of              (I.R.S. Employer
           incorporation or organization)               Identification No.)

   1314 King Street, Wilmington, Delaware                       19801
   -----------------------------------------------------------------------
   (Address of principal executive offices)                   (Zip Code)

(302) 888-7444
 Registrant's telephone number, including area code:

Indicate by check mark whether the registrant (1) has filed all reports required
to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during
the  preceding 12 months (or for such  shorter  period that the  registrant  was
required  to file  such  reports),  and  (2) has  been  subject  to such  filing
requirements for the past 90 days. YES [X] NO [ ]




<PAGE>


PART I. - FINANCIAL INFORMATION

Item 1. Financial Statements














                        Ridgewood Electric Power Trust IV

                        Consolidated Financial Statements

                                  June 30, 2004


<PAGE>


Ridgewood Electric Power Trust IV
Consolidated Balance Sheets (unaudited)
------------------------------------------------------------------------------

                                                     June 30,      December 31,
                                                       2004            2003
                                                  ------------    -------------
Assets:
Cash and cash equivalents .....................   $    354,128    $    771,561
Accounts receivable ...........................      2,041,822         939,603
Debt reserve fund .............................           --           756,928
Due from affiliates ...........................        501,455         715,405
Other assets ..................................         70,257          76,817
                                                  ------------    ------------
            Total current assets ..............      2,967,662       3,260,314

Investments:
Maine Hydro Projects ..........................      4,655,602       3,976,612
Maine Biomass Projects ........................      2,881,286       3,469,735

Plant and equipment ...........................     16,980,840      16,944,682
Accumulated depreciation ......................     (6,924,797)     (6,500,647)
                                                  ------------    ------------
                                                    10,056,043      10,444,035
                                                  ------------    ------------

Electric power sales contract .................      8,338,040       8,338,040
Accumulated amortization ......................     (4,559,333)     (4,281,426)
                                                  ------------    ------------
                                                     3,778,707       4,056,614
                                                  ------------    ------------

Spare parts inventory .........................        823,464         823,464
Deposit .......................................        150,000            --
                                                  ------------    ------------

        Total assets ..........................   $ 25,312,764    $ 26,030,774
                                                  ------------    ------------

Liabilities and Shareholders' Equity:
Liabilities:
Current maturities of long-term debt ..........   $       --      $    867,223
Accounts payable and accrued expenses .........        848,251         578,870
Due to affiliates .............................      1,384,649       1,606,136
                                                  ------------    ------------
      Total current liabilities ...............      2,232,900       3,052,229

Minority interest in the Providence Project ...      6,153,907       5,669,648

Commitments and contingencies

Shareholders' Equity:
Shareholders' equity (476.8875 investor
 shares issued and outstanding) ...............     17,161,764      17,540,875
Managing shareholder's accumulated deficit
 (1 management share issued and outstanding) ..       (235,807)       (231,978)
                                                  ------------    ------------
     Total shareholders' equity ...............     16,925,957      17,308,897
                                                  ------------    ------------

     Total liabilities and shareholders' equity   $ 25,312,764    $ 26,030,774
                                                  ------------    ------------


      See accompanying notes to consolidated financial statements.



<PAGE>



Ridgewood Electric Power Trust IV
Consolidated Statement of Operations (unaudited)
------------------------------------------------------------------------------

                              Six Months Ended             Three Months Ended
                         --------------------------    -------------------------
                           June 30,      June 30,       June 30,       June 30,
                             2004          2003           2004            2003
                         -----------    -----------    ----------     ----------

Net sales ..........   $ 3,985,013    $ 3,784,253    $ 2,027,207    $ 1,919,692
Renewable
 attribute
 revenue ...........     2,178,639        369,957      1,026,178         33,387
Sublease income ....       288,432        276,882        150,252        138,441
                       -----------    -----------    -----------    -----------
  Total revenues ...     6,452,084      4,431,092      3,203,637      2,058,133

Cost of sales ......     4,752,973      3,205,857      2,474,911      1,607,487
                       -----------    -----------    -----------    -----------

Gross profit .......     1,699,111      1,225,235        728,726        450,646
                       -----------    -----------    -----------    -----------

General and
 administrative
 expenses ..........       428,214        379,189        139,659        189,039
Management fee .....       259,633        284,393        129,817        142,376
                       -----------    -----------    -----------    -----------
   Total other
    operating
    expenses .......       687,847        663,582        269,476        331,415
                       -----------    -----------    -----------    -----------

Income from
 operations ........     1,011,264        561,653        459,250        119,231
                       -----------    -----------    -----------    -----------

Other income
 (expense):
  Interest income ..           804          4,718           --            2,622
  Interest expense .       (13,887)       (78,239)          --          (36,333)
  Other income
   (expense), net ..        (5,786)        (5,429)        (1,877)        (1,996)
  Income from Maine
   Hydro Projects ..       678,990        210,376        622,916        267,887
  Income(loss) from
   Maine Biomass
   Projects ........    (1,088,449)       247,162       (478,591)       418,279
                       -----------    -----------    -----------    -----------
    Net other
     income(loss) ..      (428,328)       378,588        142,448        650,459
                       -----------    -----------    -----------    -----------

Income before
 minority interest .       582,936        940,241        601,698        769,690

Minority interest
 in the earnings of
 the Providence
 Project ...........      (484,259)      (294,482)      (215,047)       (82,141)
                       -----------    -----------    -----------    -----------

Net income .........   $    98,677    $   645,759    $   386,651    $   687,549
                       -----------    -----------    -----------    -----------















    See accompanying notes to the consolidated financial statements.


<PAGE>



Ridgewood Electric Power Trust IV
Consolidated Statement of Changes in Shareholders' Equity (unaudited)
-------------------------------------------------------------------------------



                                                    Managing
                                  Shareholders     Shareholder         Total
                                  ------------    -------------   --------------

Shareholders' equity (deficit),
 December 31, 2003 ............   $ 17,540,875    $   (231,978)   $ 17,308,897

Cash distributions ............       (476,801)         (4,816)       (481,617)

Net income for the period .....         97,690             987          98,677
                                  ------------    ------------    ------------
Shareholders' equity (deficit),
 June 30, 2004 ................   $ 17,161,764    $   (235,807)   $ 16,925,957
                                  ------------    ------------    ------------



























    See accompanying notes to consolidated financial statements.


<PAGE>



Ridgewood Electric Power Trust IV
Consolidated Statement of Cash Flows (unaudited)
------------------------------------------------------------------------------


                                                          Six Months Ended
                                                   -----------------------------
                                                    June 30, 2004  June 30, 2003
                                                     -----------    -----------
Cash flows from operating activities:
     Net income ..................................   $    98,677    $   645,759
                                                     -----------    -----------
     Adjustments to reconcile net income to
      net cash flows from operating
      activities:
         Depreciation and amortization ...........       702,057        707,900
         Minority interest in earnings of
          the Providence Project .................       484,259        294,482
         Income from Maine Hydro Projects ........      (678,990)      (210,376)
         Loss (income) from Maine Biomass
          Projects ...............................     1,088,449       (247,162)
         Changes in assets and liabilities:
           (Increase) in accounts receivable .....    (1,102,219)       (24,618)
            Decrease in insurance claim receivable          --          258,900
            Decrease (increase) in due
             from affiliates .....................       213,950       (242,000)
           Decrease (increase) in other assets ...         6,560        (42,976)
           (Increase) in deposits ................      (150,000)          --
           Increase in accounts payable
            and accrued expenses .................       269,381        134,292
           (Decrease) increase in
            due to affiliates ....................      (221,487)       134,250
                                                     -----------    -----------
               Total adjustments .................       611,960        762,692
                                                     -----------    -----------
       Net cash provided by operating activities .       710,637      1,408,451
                                                     -----------    -----------

Cash flows from investing activities:
     Investment in Maine Biomass Projects ........      (500,000)          --
     Capital expenditures ........................       (36,158)          --
                                                     -----------    -----------
       Net cash used in investing activities .....      (536,158)          --
                                                     -----------    -----------

Cash flows from financing activities:
     Payments to reduce long-term debt ...........      (867,223)      (466,185)
     Decrease (increase) in restricted cash ......       756,928       (103,366)
     Cash distributions to shareholders ..........      (481,617)      (722,423)
                                                     -----------    -----------
       Net cash used in financing activities .....      (591,912)    (1,291,974)
                                                     -----------    -----------

Net (decrease) increase in cash
  and cash equivalents ...........................      (417,433)       116,477

Cash and cash equivalents, beginning of year .....       771,561         54,637
                                                     -----------    -----------

Cash and cash equivalents, end of period .........   $   354,128    $   171,114
                                                     -----------    -----------







      See accompanying notes to consolidated financial statements.


<PAGE>



Ridgewood Electric Power Trust IV
Notes to Consolidated Financial Statements (unaudited)
-------------------------------------------------------------------------------
1. General

In the opinion of management,  the accompanying unaudited consolidated financial
statements   contain  all   adjustments,   which  consist  of  normal  recurring
adjustments,  necessary for the fair presentation of the results for the interim
periods. Additional footnote disclosure concerning accounting policies and other
matters are  disclosed  in  Ridgewood  Electric  Power Trust IV's (the  "Trust")
consolidated  financial  statements  included in the 2003 Annual  Report on Form
10-K,  which should be read in  conjunction  with these  consolidated  financial
statements.

The results of operations for an interim period should not  necessarily be taken
as  indicative  of the results of  operations  that may be expected for a twelve
month period.

The consolidated  financial statements include the accounts of the Trust and the
limited  partnerships  owning the Providence  Project and the California Pumping
project.  The Trust uses the equity method of accounting for its  investments in
the Maine Hydro Projects and the Maine Biomass Projects,  which are owned 50% or
less by the Trust.

2.  Summary Results of Operations for Selected Investments

Summarized financial information for the Maine Hydro Projects, which are
accounted for under the equity method, are as follows:

Balance Sheet
                        June 30,    December 31,
                          2004          2003
                       ----------   ----------

Total assets .......   $9,936,056   $9,058,870
                       ----------   ----------

Stockholders' equity   $9,311,203   $7,953,223
                       ----------   ----------


Statement of Operations

                         Six Months Ended         Three Months Ended
                            June 30,                  June 30,
                       2004         2003         2004          2003
                    ----------   ----------   ----------   ----------
Revenue .........   $2,126,000   $2,134,000   $1,248,000   $1,371,000
Operating expense      768,000    1,713,000        2,000      836,000
Net income ......    1,358,000      421,000    1,246,000      535,000



Summarized financial information for the Maine Biomass Projects, which are
accounted for under the equity method, are as follows:




Balance Sheet
                     June 30,      December 31,
                      2004            2003
                   -----------    -----------

Total assets ...   $ 6,891,706    $ 4,248,497
                   -----------    -----------

Members' deficit   $(9,389,997)   $(7,213,099)
                   -----------    -----------


Statement of Operations

                        Six Months Ended             Three Months Ended
                             June 30,                     June 30,
                        2004           2003          2004          2003
                    -----------    -----------   -----------   -----------
Revenue .........   $ 5,563,000    $ 5,778,000   $ 3,680,000   $ 3,596,000
Cost of sales ...     6,874,000      4,704,000     4,155,000     2,457,000
Other expense ...       866,000        580,000       482,000     2,303,000
Net income (loss)    (2,177,000)       494,000      (957,000)      836,000


3.  Summary of Significant Accounting Policies

New Accounting Standards and Disclosures

SFAS 143
In June 2001, the Financial Accounting Standards Board ("FASB") issued SFAS 143,
Accounting for Asset Retirement  Obligations,  on the accounting for obligations
associated  with the  retirement  of  long-lived  assets.  SFAS 143  requires  a
liability  to  be  recognized  in  the  consolidated  financial  statements  for
retirement  obligations  meeting specific  criteria.  Measurement of the initial
obligation is to approximate fair value,  with an equivalent  amount recorded as
an increase in the value of the capitalized asset. The asset will be depreciated
in  accordance  with  normal  depreciation  policy  and  the  liability  will be
increased  for the time value of money,  with a charge to the income  statement,
until  the  obligation  is  settled.  SFAS 143 is  effective  for  fiscal  years
beginning  after June 15, 2002. The Trust adopted SFAS 143 effective  January 1,
2003, with no material impact on the consolidated financial statements.

SFAS 145
In April 2002, the FASB issued SFAS No. 145,  Rescission of FASB  Statements No.
4, 44, and 64,  Amendment of FASB  Statement No. 13, and  Technical  Correction.
SFAS No. 145 eliminates extraordinary accounting treatment for reporting gain or
loss  on  debt   extinguishment,   and  amends  other   existing   authoritative
pronouncements  to make various  technical  corrections,  clarify  meanings,  or
describe their applicability  under changed  conditions.  The Trust adopted SFAS
145  effective  January 1, 2003,  with no  material  impact on the  consolidated
financial statements.

SFAS 146
In June 2002, the FASB issued SFAS No. 146, Accounting for Costs Associated with
Exit or Disposal  Activities.  SFAS No. 146 requires  recording costs associated
with exit or disposal  activities at their fair values when a liability has been
incurred. The Trust adopted SFAS 146 effective January 1, 2003, with no material
impact on the consolidated financial statements.

FIN 46
In December 2003, the FASB issued FASB  Interpretation No. 46, (Revised December
2003) "Consolidation of Variable Interest Entities" ("FIN 46") which changes the
criteria  by which one  company  includes  another  entity  in its  consolidated
financial  statements.  FIN  46  requires  a  variable  interest  entity  to  be
consolidated  by a company if that  company is subject to a majority of the risk
of loss from the variable interest entity's  activities or entitled to receive a
majority  of  the  entity's   residual   returns  or  both.  The   consolidation
requirements of FIN 46 apply  immediately to variable  interest entities created
after December 31, 2003, and apply in the first fiscal period ending after March
15, 2004, for variable  interest  entities created prior to January 1, 2004. The
Trust adopted the disclosure  provisions of FIN 46 effective  December 31, 2002,
with no material  impact to the  consolidated  financial  statements.  The Trust
implemented  the full  provisions of FIN 46 effective  January 1, 2004,  with no
material impact on the consolidated financial statements.

SFAS 149
In April 2003,  the FASB issued SFAS No. 149,  "Amendment  of  Statement  133 on
Derivative  Instruments  and  Hedging  Activities."  SFAS  No.  149  amends  and
clarifies  the  accounting  for  derivative   instruments,   including   certain
derivative  instruments embedded in other contracts,  and for hedging activities
under  SFAS  No.  133,  "Accounting  for  Derivative   Instruments  and  Hedging
Activities."  SFAS No. 149 is generally  effective for contracts entered into or
modified after June 30, 2003 and for hedging relationships designated after June
30, 2003.  The Trust adopted SFAS 149 effective  July 1, 2003,  with no material
impact on the consolidated financial statements.

SFAS 150
In May 2003,  the FASB  issued SFAS No. 150,  Accounting  for Certain  Financial
Instruments with  Characteristics  of both Liabilities and Equity.  SFAS No. 150
establishes   standards  for   classifying  and  measuring   certain   financial
instruments  with  characteristics  of both  liabilities  and equity.  The Trust
adopted  SFAS  150  effective  July 1,  2003,  with no  material  impact  on the
consolidated financial statements.

4. Long-term Debt

On February 13, 2004, the  Providence  Project made a payment of $813,257 to pay
off the remaining balance of its  collateralized  non-recourse  notes. The final
payment  consisted  of $90,738 in cash and the  transfer of the  $722,519 in the
restricted cash debt reserve fund at February 13, 2004.

5. Legal Settlement

On January 28, 2004,  Ridgewood  Maine Hydro  Partners  L.P.  ("Ridgewood  Maine
Hydro") (a/k/a Maine Hydro Projects)  filed a complaint  against CHI Operations,
Inc. and certain of its officers,  employees and  affiliates  (collectively  the
"Defendants") in the Superior Court of Kennebec County,  Maine.  Ridgewood Maine
Hydro was seeking relief from the court related to a long-term fraudulent scheme
perpetrated by the Defendants related to charges under an Operation, Maintenance
and Administration Agreement (the "OM&A Agreement") dated December 23, 1996.

On April  30,  2004,  Ridgewood  Maine  Hydro  and the  Defendants  agreed  to a
settlement of the dispute. As a result of the settlement, (a) the OM&A Agreement
was terminated on April 30, 2004 without  further  obligation or liability,  (b)
Defendants  paid $500,000 to Ridgewood  Maine Hydro,  and (c) invoices  totaling
approximately $500,000 due from Ridgewood Maine Hydro to Defendants for services
rendered under the OM&A Agreement were cancelled.

On April 30, 2004, Ridgewood Power Management LLC ("Ridgewood  Management"),  an
affiliate of the Managing Shareholder of the Trust, began operating the projects
under an operating  agreement  with Ridgewood  Maine Hydro.  Under the operating
agreement,  Ridgewood  Management  will charge the Ridgewood  Maine Hydro at its
cost for these services and for the allocable amount of certain overhead items.

6. Related Party Transactions

From time to time, the Trust records  short-term  payables and receivables  from
other  affiliates in the ordinary  course of business.  The amounts  payable and
receivable with the other affiliates do not bear interest.  At June 30, 2004 and
December 31, 2003, the Trust had outstanding payables and receivables,  with the
following affiliates:



                             Due From                   Due To
                     ------------------------  -------------------------
                      June 30,    December 31,   June 30,  December 31,
                        2004         2003          2004         2003
                     ----------   ----------   ----------   ----------
Ridgewood Power
 Management LLC ..   $     --     $     --     $  108,528   $   42,006
Ridgewood Electric
 Power Trust III .      430,455         --           --        569,463
Ridgewood Power ..         --           --        664,855      674,921
Maine Hydro ......         --        644,405      539,595         --
Maine Biomass ....         --           --         41,309      298,309
Other affiliates .       71,000       71,000       30,362       21,437
                     ----------   ----------   ----------   ----------
        Total ....   $  501,455   $  715,405   $1,384,649   $1,606,136
                     ==========   ==========   ==========   ==========


7. Financial Information by Business Segment

The Trust's business segments were determined based on similarities in economic
characteristics and customer base. The Trust's principal business segments
consist of wholesale and retail.

Common services shared by the business segments are allocated on the basis of
identifiable direct costs, time records or in proportion to amount invested in
projects managed by Ridgewood Management.

The financial data for business segments are as follows:



                                      Wholesale Power Sales
                          Six Months Ended          Three Months Ended
                       -----------------------   -------------------------
                         June 30,    June 30,     June 30,      June 30,
                          2004         2003         2004          2003
                       ----------   ----------   ----------   -----------

Revenue ............   $6,180,900   $4,209,687   $3,024,788   $1,923,154
Depreciation and
 amortization ......      670,716      679,450      335,358      344,092
Operating income ...    1,369,553      899,638      602,374      264,954
Capital expenditures       36,158         --         27,665         --




                                         Retail Power Sales
                             Six Months Ended        Three Months Ended
                          ----------------------   ----------------------
                           June 30,     June 30,    June 30,     June 30,
                             2004         2003        2004         2003
                          ---------    ---------   ---------   ----------

Revenue ...............   $ 271,184    $ 221,405   $ 178,849   $ 134,979
Depreciation and
 amortization .........      31,341       28,450      15,670      14,228
Operating income (loss)     (15,437)       3,190      17,116      24,684
Capital expenditures ..        --           --          --          --






                                                 Corporate
                                  Six Months Ended         Three Months Ended
                             -------------------------   ----------------------
                              June 30,       June 30,     June 30,      June 30,
                                2004           2003         2004         2003
                             -----------   -----------   ---------    ---------

Revenue .....................   $   --      $    --       $   --       $   --
Depreciation and amortization       --           --           --           --
Operating loss ..............   (342,852)    (341,175)    (160,240)    (170,407)
Capital expenditures ........       --           --           --           --


                                            Total
                           Six Months Ended        Three Months Ended
                       -----------------------   -----------------------
                        June 30,     June 30,     June 30,     June 30,
                          2004         2003         2004         2003
                       ----------   ----------   ----------   ----------

Revenue ............   $6,452,084   $4,431,092   $3,203,637   $2,058,133
Depreciation and
 amortization ......      702,057      707,900      351,028      358,320
Operating income ...    1,011,264      561,653      459,250      119,231
Capital expenditures       36,158       --           27,665         --


8. Subsequent Event

On August 6, 2004,  Indeck Maine Energy LLC entered into a $6,000,0000  Mortgage
Loan  Agreement  with  Commerce  Bank/North.  The loan  requires  the payment of
interest only during the period of September 1, 2004 through  November 30, 2004.
Interest  for this  period will bear  interest  at a variable  rate equal to the
Prime rate plus 1%. On December 1, 2004,  the loan shall  convert to a term loan
and will bear interest  based on the Five Year Treasury Bill rate as of November
24, 2004 plus 275 basis  points.  Monthly  principal  payments of $100,000  will
commence on December 1, 2004 and will be paid with interest  through December 1,
2009.



<PAGE>


Item 2. Management's Discussion and Analysis of Financial Condition and Results
of Operations

Dollar amounts in this discussion are rounded to the nearest $1,000.

Introduction

The consolidated  financial statements include the accounts of the Trust and the
limited  partnerships  owning the Providence  Project and the California Pumping
project.  The Trust uses the equity method of accounting for its  investments in
the Maine Hydro Projects and the Maine Biomass Projects,  which are owned 50% by
the Trust.

Critical Accounting Policies and Estimates

For a complete discussion of critical accounting policies, refer to "Significant
Accounting Policies" in Item 7 of the Trust's 2003 Form 10-K. There have been no
substantive changes to those policies and estimates.

Results of Operations

Three Months  Ended June 30,  2004,  Compared to the Three Months Ended June 30,
2003

Total  revenue  for the  second  quarter  of 2004 was  $3,204,000,  compared  to
$2,058,000  for the second  quarter of 2003.  The  increase in total  revenue is
primarily  attributable to the $993,000 increase in renewable  attribute revenue
from the Providence Project. In addition to its 2003 qualification status in the
State of Massachusetts  energy market,  the Providence Project began to sell its
energy attributes in the Connecticut energy market in the first quarter of 2004.

Gross profit increased  $278,000 to $729,000 for the second quarter of 2004. The
increase  is a result of the  increase  in  renewable  attribute  revenue net of
royalties,  partially offset by the higher maintenance  expenses incurred by the
Providence Project in the current year.

General and administrative expenses decreased $49,000 to $140,000 for the second
quarter of 2004.  The  management  fee  decreased  from  $142,000  in the second
quarter  of 2003 to  $130,000  in the same  period  in 2004 as a  result  of the
Trust's lower net asset balance.

Interest  expense  was  reduced by  $36,000  in the second  quarter of 2004 as a
result of the Providence Project paying off the balance of its debt in the first
quarter of 2004.

Equity income from the Maine Hydro Projects  increased  $355,000 to $623,000 for
the second quarter of 2004. The increase in income is due to the lower operating
expenses  incurred in the  current  period as a result of the  termination  of a
third  party  operation  and  maintenance  agreement  the Maine  Hydro  projects
previously  operated  under. In addition to the termination of the operating and
maintenance agreement, the Maine Hydro projects received $500,000 as part of the
settlement of its legal complaint.

The equity loss from the Maine Biomass Projects  increased  $897,000 from income
of  $418,000 in the second  quarter of 2003 to a loss of  $479,000  for the same
period in 2004. The increase in the equity loss in the Maine Biomass Projects is
primarily attributable to the increase in repairs and maintenance costs incurred
as the result of refurbishing, staffing and restarting the idle Eastport plant.


Six Months Ended June 30, 2004, Compared to the Six Months Ended June 30, 2003

Total  revenue  for the first six  months of 2004 was  $6,452,000,  compared  to
$4,431,000  for the first six months of 2003.  The increase in total  revenue is
primarily attributable to the $1,809,000 increase in renewable attribute revenue
from the Providence Project. In addition to its 2003 qualification status in the
State of Massachusetts  energy market,  the Providence Project began to sell its
energy attributes in the Connecticut  energy market as well in the first quarter
of 2004.

Gross profit increased  $474,000 to $1,699,000 for the first six months of 2004.
This  is a  result  of  the  increase  in  renewable  attribute  revenue  net of
royalties,  partially offset by the higher maintenance  expenses incurred by the
Providence Project in the current year.

General and administrative  expenses increased $49,000 to $428,000 for the first
half of 2004.  The  management  fee decreased from $284,000 in the first half of
2003 to $260,000 in the same period in 2004 as a result of the Trust's lower net
asset balance.

Interest  expense was reduced by $64,000  from $78,000 in the first half of 2003
to  $14,000  in the  first  half of 2004 as a result of the  Providence  Project
paying off the balance of its debt in the first quarter of 2004.

Equity income from the Maine Hydro Projects  increased  $469,000 to $679,000 for
the  first  six  months  of 2004.  The  increase  in  income is due to the lower
operating  expenses  incurred in the current year as a result of the termination
of a third party  operation and  maintenance  agreement the Maine Hydro projects
previously  operated  under. In addition to the termination of the operating and
maintenance agreement, the Maine Hydro projects received $500,000 as part of the
settlement of its legal complaint.

The equity loss from the Maine Biomass Projects increased $1,335,000 from income
of  $247,000  in the  first  half of 2003 to a loss of  $1,088,000  for the same
period in 2004. The increase in the equity loss in the Maine Biomass Projects is
primarily attributable to the increase in repairs and maintenance costs incurred
as the result of refurbishing, staffing and restarting the idle Eastport plant.

Liquidity and Capital Resources

Cash provided by operating activities for the six months ended June 30, 2004 was
$711,000 as compared to $1,408,000  for the six months ended June 30, 2003.  The
decrease in cash flow from  operating  activities is primarily the result of the
increase in accounts  receivable  in 2004,  the net  decrease in balances due to
affiliates and the absence of the proceeds received in the first quarter of 2003
from a 2002 insurance claim.

Cash  used in  investing  activities  was  zero  for the  first  half of 2003 as
compared to $36,000 used in the purchase of machinery and equipment and $500,000
invested in the Maine Biomass projects in the first half of 2004.

Cash used in financing  activities for the first six months of 2004 was $592,000
as compared to $1,292,000 for the first six months of 2003. The decrease in cash
flow used in financing activities is primarily due to the Trust transferring the
restricted  debt  reserve  fund to pay off the  remaining  principal  balance of
long-term  debt.  In  addition,  the  distributions  to  shareholders  decreased
$240,000 in the current year.

On June 26, 2003, Ridgewood Renewable Power LLC, the Managing Shareholder of the
Trust,  entered into a $5,000,0000  Revolving Credit and Security Agreement with
Wachovia  Bank,  National   Association.   The  agreement  allows  the  Managing
Shareholder  to obtain loans and letters of credit for the benefit of the trusts
and funds that it manages.  The  agreement  expires on June 30, 2004. As part of
the  agreement,  the  Trust  agreed  to  limitations  on its  ability  to  incur
indebtedness and liens and make  guarantees.  On February 20, 2004, the Managing
Shareholder  and Wachovia  Bank amended the agreement  increasing  the amount to
$6,000,000 and extending the date of expiration to June 30, 2005.

The Trust has historically  financed its operations from cash generated from its
subsidiaries'  operations.  Obligations  of the Trust are  generally  limited to
payment of the management fee to the Managing Shareholder and payment of certain
accounting and legal services to third parties.  The Trust expects that its cash
flows  from  operations  and  cash  on  hand  will be  sufficient  to  fund  its
obligations and any distributions declared for the next twelve months.

Item 4. Controls and Procedures

Based on their  evaluation,  as of a date  within 90 days of the filing  date of
this Form 10-Q, the Trust's Chief Executive  Officer and Chief Financial Officer
have concluded that the Trust's  disclosure  controls and procedures (as defined
in Rules 13a-14(c) and 15d-14(c)  under the Securities  Exchange Act of 1934, as
amended)  are  effective.  There have been no  significant  changes in  internal
controls or in other  factors that could  significantly  affect  these  controls
subsequent to the date of their  evaluation,  including any  corrective  actions
with regard to significant deficiencies and material weaknesses.

Management has  identified  deficiencies  in the Trust's  ability to process and
summarize  financial  information  of  certain  individual  projects  and equity
investees  on a timely  basis.  Management  is  establishing  a project  plan to
address this deficiency.

Forward-looking statement advisory
This Quarterly  Report on Form 10-Q, as with some other  statements  made by the
Trust from time to time, contains forward-looking  statements.  These statements
discuss business trends and other matters relating to the Trust's future results
and the  business  climate and are found,  among other  places,  in the notes to
financial  statements  and at  Part  I,  Item  2,  Management's  Discussion  and
Analysis.  In  order  to  make  these  statements,  the  Trust  has  had to make
assumptions  as to the future.  It has also had to make  estimates in some cases
about events that have already  happened,  and to rely on data that may be found
to be inaccurate at a later time. Because these  forward-looking  statements are
based on assumptions,  estimates and changeable data, and because any attempt to
predict the future is subject to other errors,  what happens to the Trust in the
future may be materially different from the Trust's statements here.

The Trust  therefore warns readers of this document that they should not rely on
these  forward-looking  statements  without  considering  all of the things that
could make them  inaccurate.  The Trust's other filings with the  Securities and
Exchange  Commission and its Confidential  Memorandum discuss many (but not all)
of  the  risks  and  uncertainties  that  might  affect  these   forward-looking
statements.

Some of these are changes in political and economic conditions, federal or state
regulatory  structures,  government  taxation,  spending and budgetary policies,
government  mandates,  demand for electricity and thermal energy, the ability of
customers  to pay for  energy  received,  supplies  of fuel and prices of fuels,
operational status of plant,  mechanical  breakdowns,  availability of labor and
the  willingness  of  electric  utilities  to perform  existing  power  purchase
agreements in good faith.  Some of the  cautionary  factors that readers  should
consider are described in the Trust's most recent Annual Report on Form 10-K.

By making these statements now, the Trust is not making any commitment to revise
these forward-looking statements to reflect events that happen after the date of
this document or to reflect unanticipated future events.


<PAGE>



PART II - OTHER INFORMATION


 None.




<PAGE>


                                   SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the
registrant has duly caused this report to be signed on its behalf by the
undersigned thereunto duly authorized.




                          RIDGEWOOD ELECTRIC POWER TRUST IV
                                   Registrant

October 14, 2004              By /s/ Christopher I. Naunton
Date                                Christopher I. Naunton
                                    Vice President and
                                    Chief Financial Officer
                                    (signing on behalf of the
                                    Registrant and as
                                    principal financial
                                    officer)






















<PAGE>



                   CERTIFICATION PURSUANT TO RULE 13A-14 UNDER
                 THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED



I, Robert E. Swanson,  Chief Executive Officer of Ridgewood Electric Power Trust
IV ("registrant"), certify that:

1. I have reviewed this quarterly report on Form 10-Q of the registrant;

2. Based on my knowledge, this quarterly report does not contain any untrue
statement of a material fact or omit to state a material fact necessary to make
the statements made, in light of the circumstances under which such statements
were made, not misleading with respect to the period covered by this quarterly
report;

3. Based on my knowledge, the financial statements, and other financial
information included in this quarterly report, fairly present in all material
respects the financial condition, results of operations and cash flows of the
registrant as of, and for, the periods presented in this quarterly report;

4. The registrant's other certifying officer and I are responsible for
establishing and maintaining disclosure controls and procedures (as defined in
Exchange Act Rules 13a-15(e) and 15d-15(e)) for the registrant and we have:
          (a) Designed such disclosure controls and procedures, or caused such
          disclosure controls and procedures to be designed under our
          supervision, to ensure that material information relating to the
          Registrant, including its consolidated subsidiaries, is made known to
          us by others within those entities, particularly during the period in
          which this quarterly report is being prepared;

          (b) Evaluated the effectiveness of the Registrant's disclosure
          controls and procedures and presented in the quarterly report our
          conclusions about the effectiveness of the disclosure controls and
          procedures, as of the end of the period covered by this quarterly
          report based on such evaluation; and

          (c) Disclosed in this quarterly report any change in the Registrant's
          internal control over financial reporting that occurred during the
          Registrant's most recent fiscal quarter that has materially affected,
          or is reasonably likely to materially affect, the Registrant's
          internal control over financial reporting; and

5. The registrant's other certifying officer and I have disclosed, based on our
most recent evaluation of internal control over financial reporting, to the
registrant's auditors and senior management:

      (a) All significant deficiencies and material weaknesses in the design or
      operation of internal control over financial reporting which are
      reasonably likely to adversely affect the Registrant's ability to record,
      process, summarize and report financial information; and

      (b) Any fraud, whether or not material, that involves management or other
      employees who have a significant role in the Registrant's internal control
      over financial reporting.



Date: October 14, 2004

/s/   Robert E. Swanson
-----------------------
Robert E. Swanson
Chief Executive Officer



<PAGE>





                   CERTIFICATION PURSUANT TO RULE 13A-14 UNDER
                 THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED


I, Christopher I. Naunton,  Chief Financial Officer of Ridgewood  Electric Power
Trust IV ("registrant"), certify that:

1. I have reviewed this quarterly report on Form 10-Q of the registrant;

2. Based on my knowledge, this quarterly report does not contain any untrue
statement of a material fact or omit to state a material fact necessary to make
the statements made, in light of the circumstances under which such statements
were made, not misleading with respect to the period covered by this quarterly
report;

3. Based on my knowledge, the financial statements, and other financial
information included in this quarterly report, fairly present in all material
respects the financial condition, results of operations and cash flows of the
registrant as of, and for, the periods presented in this quarterly report;

4. The registrant's other certifying officer and I are responsible for
establishing and maintaining disclosure controls and procedures (as defined in
Exchange Act Rules 13a-15(e) and 15d-15(e)) for the registrant and we have:
          (a) Designed such disclosure controls and procedures, or caused such
          disclosure controls and procedures to be designed under our
          supervision, to ensure that material information relating to the
          Registrant, including its consolidated subsidiaries, is made known to
          us by others within those entities, particularly during the period in
          which this quarterly report is being prepared;

          (b) Evaluated the effectiveness of the Registrant's disclosure
          controls and procedures and presented in the quarterly report our
          conclusions about the effectiveness of the disclosure controls and
          procedures, as of the end of the period covered by this quarterly
          report based on such evaluation; and

          (c) Disclosed in this quarterly report any change in the Registrant's
          internal control over financial reporting that occurred during the
          Registrant's most recent fiscal quarter that has materially affected,
          or is reasonably likely to materially affect, the Registrant's
          internal control over financial reporting; and

5. The registrant's other certifying officer and I have disclosed, based on our
most recent evaluation of internal control over financial reporting, to the
registrant's auditors and senior management:

      (a) All significant deficiencies and material weaknesses in the design or
      operation of internal control over financial reporting which are
      reasonably likely to adversely affect the Registrant's ability to record,
      process, summarize and report financial information; and

      (b) Any fraud, whether or not material, that involves management or other
      employees who have a significant role in the Registrant's internal control
      over financial reporting.


Date: October 14, 2004

/s/   Christopher I. Naunton
----------------------------
Christopher I. Naunton
Chief Financial Officer