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 September 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

                               September 30, 2004


<PAGE>


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

                                           September 30,   December 31,
                                               2004            2003
                                          -------------   -------------
Assets:
Cash and cash equivalents .............   $    839,411    $    771,561
Accounts receivable ...................      1,958,880         939,603
Debt reserve fund .....................           --           756,928
Due from affiliates ...................         51,108         715,405
Other assets ..........................        113,817          76,817
                                          ------------    ------------
            Total current assets ......      2,963,216       3,260,314

Investments:
Maine Hydro Projects ..................      4,529,567       3,976,612
Maine Biomass Projects ................      3,069,398       3,469,735

Plant and equipment ...................     16,980,727      16,944,682
Accumulated depreciation ..............     (7,136,860)     (6,500,647)
                                          ------------    ------------
                                             9,843,867      10,444,035
                                          ------------    ------------

Electric power sales contract .........      8,338,040       8,338,040
Accumulated amortization ..............     (4,698,299)     (4,281,426)
                                          ------------    ------------
                                             3,639,741       4,056,614
                                          ------------    ------------

Spare parts inventory .................        823,464         823,464
Deposit ...............................        225,000            --
                                          ------------    ------------

        Total assets ..................   $ 25,094,253    $ 26,030,774
                                          ------------    ------------

Liabilities and Shareholders' Equity:
Liabilities:
Current maturities of long-term debt ..   $       --      $    867,223
Accounts payable and accrued
  expenses ............................        585,344         578,870
Due to affiliates .....................      2,571,250       1,606,136
                                          ------------    ------------
         Total current liabilities ....      3,156,594       3,052,229

Minority interest in the Providence
  Project .............................      5,349,856       5,669,648

Commitments and contingencies

Shareholders' Equity:
Shareholders' equity (476.8875 investor
  shares issued and outstanding) ......     16,826,992      17,540,875
Managing shareholder's accumulated
  deficit (1 management share issued
  and outstanding) ....................       (239,189)       (231,978)
                                          ------------    ------------
         Total shareholders' equity ...     16,587,803      17,308,897
                                          ------------    ------------

         Total liabilities and
           shareholders' equity .......   $ 25,094,253    $ 26,030,774
                                          ------------    ------------


See accompanying notes to consolidated financial statements.



<PAGE>



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

                             Nine Months Ended            Three Months Ended
                         --------------------------  ---------------------------
                         September 30, September 30, September 30, September 30,
                             2004          2003          2004           2003
                         ------------  ------------  ------------  -------------

Power generation
 revenue ..............   $ 5,975,033   $ 5,749,592   $ 1,990,020   $ 1,965,339
Renewable
 attribute revenue ....     3,160,157       369,957       981,518          --
Sublease income .......       429,816       415,323       141,384       138,441
                          -----------   -----------   -----------    -----------
  Total revenue .......     9,565,006     6,534,872     3,112,922     2,103,780

Cost of sales .........     6,557,234     4,820,724     1,804,261     1,614,867
                          -----------   -----------   -----------    -----------

Gross profit ..........     3,007,772     1,714,148     1,308,661       488,913
                          -----------   -----------   -----------    -----------

General and
 administrativ
 expenses .............       617,967       659,600       189,755       280,411
Management fee ........       389,448       426,590       129,815       142,197
                          -----------   -----------    -----------   -----------
   Total other
    operating expenses      1,007,415     1,086,190       319,570       422,608
                          -----------   -----------    -----------   -----------

Income from operations      2,000,357       627,958       989,091        66,305
                          -----------   -----------    -----------   -----------

Other income (expense):
  Interest income .....           804         8,001          --           3,283
  Interest expense ....       (13,888)     (108,865)         --         (30,627)
  Other income
   (expense), net .....         1,431       155,581         7,217       161,010
  Income (loss) from
   Maine Hydro Projects       552,955      (109,139)     (126,035)     (319,515)
  Loss from Maine
   Biomass Projects ...    (1,400,337)      (95,875)     (311,889)     (343,037)
                          -----------    -----------   -----------   -----------
     Total other
      expense, net ....      (859,035)      (150,297)    (430,707)     (528,886)
                          -----------    -----------   -----------   -----------

Income (loss) before
 minority interest ....     1,141,322        477,661      558,384      (462,581)

Minority interest in
 the earnings of the
 Providence Project ...      (899,186)      (442,362)    (414,925)     (147,880)
                          -----------    -----------   -----------   -----------

Net income (loss) .....   $   242,136    $    35,299   $   143,459  $  (610,461)
                          -----------    -----------   -----------   -----------











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 ...........       (953,598)         (9,632)       (963,230)

Net income for the period ....        239,715           2,421         242,136
                                 ------------    ------------    ------------

Shareholders' equity
 (deficit), September 30, 2004   $ 16,826,992    $   (239,189)   $ 16,587,803
                                 ------------    ------------    ------------

















          See accompanying notes to consolidated financial statements.


<PAGE>



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


                                               Nine Months Ended
                                           --------------------------
                                           September 30,  September 30,
                                               2004           2003
                                           -----------    -----------
Cash flows from operating activities:
     Net income ........................   $   242,136    $    35,299
                                           -----------    -----------
     Adjustments to reconcile net
        income to net cash flows from
        operating activities:
         Depreciation and amortization .     1,053,086      1,053,086
         Minority interest in earnings
           of the Providence Project ...       899,186        442,362
         (Income) loss from Maine
           Hydro Projects ..............      (552,955)       109,139
         Loss from Maine Biomass
           Projects ....................     1,400,337         95,875
         Changes in assets and
         liabilities:
           Increase in accounts
             receivable, trade .........    (1,019,277)       (52,047)
           Decrease (increase) in
             due from affiliates .......       664,297        (72,826)
           Decrease in insurance
             claim receivable ..........          --          258,900
           Increase in other assets ....       (37,000)        (3,529)
           Increase in deposits ........      (225,000)          --
           Increase in accounts payable
             and accrued expenses ......         6,474        190,556
           Increase in due to affiliates       965,114        525,956
                                           -----------    -----------
               Total adjustments .......     3,154,262      2,547,472
                                           -----------    -----------
         Net cash provided by operating
           activities ..................     3,396,398      2,582,771
                                           -----------    -----------

Cash flows from investing activities:
     Investment in Maine Biomass
       Projects ........................    (1,000,000)      (300,000)
     Capital expenditures ..............       (36,045)          --
                                           -----------    -----------
         Net cash used in investing
           activities ..................    (1,036,045)      (300,000)
                                           -----------    -----------

Cash flows from financing activities:
     Payments to reduce long-term debt .      (867,223)      (707,772)
     Decrease (increase) in debt
       reserve fund ....................       756,928         (5,407)
     Cash distributions to minority
       interest ........................    (1,218,978)      (548,735)
     Cash distributions to
       shareholders ....................      (963,230)      (963,232)
                                           -----------    -----------
         Net cash used in financing
           activities ..................    (2,292,503)    (2,225,146)
                                           -----------    -----------

Net increase in cash and cash
  equivalents ..........................        67,850         57,625

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

Cash and cash equivalents,
  end of period ........................    $  839,411     $  112,262
                                           -----------    -----------




          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 Sheets
                      September 30, December 31,
                          2004          2003
                       ----------   ----------

Total assets .......   $8,068,869   $9,058,870
                       ----------   ----------

Stockholders' equity   $9,059,134   $7,953,223
                       ----------   ----------


Statements of Operations

            Nine Months Ended September 30,  Three Months Ended September 30,
            -------------------------------  -------------------------------
                  2004          2003                2004           2003
                  ----          ----                ----           ----
Revenue ..   $ 2,575,000   $ 2,305,000         $   449,000    $   171,000
Operating
 expense .     1,469,000     2,523,000             701,000        810,000
Net income
 (loss) ..     1,106,000      (218,000)           (252,000)      (639,000)




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



Balance Sheets
                   September 30,    December 31,
                       2004            2003
                   ------------    ------------

Total assets ...   $ 11,845,808    $  4,248,497
                   ------------    ------------

Members' deficit   $(10,013,775)   $ (7,213,099)
                   ------------    ------------


Statements of Operations

              Nine Months Ended September 30,  Three Months Ended September 30,
              ------------------------------   -------------------------------
                    2004            2003             2004           2003
                    ----            ----             ----           ----
Revenue .....  $  9,212,000    $  7,820,000     $  3,649,000    $  2,042,000
Cost of sales    10,459,000       7,151,000        3,585,000       2,447,000
Other expense     1,554,000         861,000          688,000         281,000
Net loss ....    (2,801,000)       (192,000)        (624,000)       (686,000)




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.

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 be based on 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, but in no event will be less than 6.25%. Monthly
principal payments of $100,000 will commence on January 1, 2005 and will be paid
with interest through December 1, 2009. The loan is secured by the assets of
Indeck Maine Energy, LLC.

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 September 30, 2004
and December 31, 2003, the Trust had outstanding payables and receivables, with
the following affiliates:



                              Due From                      Due To
                     ------------------------------------------------------
                     September 30, December 31,   September 30, December 31,
                         2004        2003             2004        2003
                     -------------------------    -------------------------
Ridgewood Power
 Management LLC ..   $   13,828   $     --         $     --     $   42,006
Ridgewood Electric
 Power Trust III .         --           --            339,158      569,463
Ridgewood Power ..         --           --          1,030,886      674,921
Maine Hydro ......         --        644,405          905,395         --
Maine Biomass ....         --           --            234,309      298,309
Other affiliates .       37,280       71,000           61,502       21,437
                     ----------   ----------       ----------   ----------
        Total ....   $   51,108   $  715,405       $2,571,250   $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
                          Nine Months Ended           Three Months Ended
                     ----------------------------  ---------------------------
                      September 30, September 30,  September 30, September 30,
                          2004         2003           2004          2003
                     -------------- -------------  ------------- -------------

Revenue ............    $9,134,587   $6,145,624    $2,953,687    $1,935,937
Depreciation and
 amortization ......     1,006,074    1,006,075       335,358       326,625
Operating income ...     2,527,510    1,180,537     1,157,957       280,899
Capital expenditures        36,045         --            --            --



                                        Retail Power Sales
                           Nine Months Ended           Three Months Ended
                       ---------------------------  ---------------------------
                       September 30, September 30,  September 30, September 30,
                          2004           2003           2004           2003
                       ------------  -------------  ------------  -------------

Revenue ............    $ 430,419    $ 389,248    $ 159,235    $ 167,843
Depreciation and
 amortization ......       47,012       47,011       15,671       18,561
Operating loss .....      (31,542)      (4,881)     (16,105)      (8,071)
Capital expenditures         --           --           --            --


                                               Corporate
                             Nine Months Ended           Three Months Ended
                        ---------------------------  --------------------------
                        September 30, September 30,  September 30, September 30,
                            2004          2003           2004          2003
                        ------------  -------------  ------------  ------------

Revenue ............       $    --       $    --        $    --       $    --
Depreciation and
 amortization                   --            --             --            --
Operating loss .....      (495,611)     (547,698)      (152,761)     (206,523)
Capital expenditures            --             --             --            --

                                              Total
                          Nine Months Ended            Three Months Ended
                      ---------------------------  ----------------------------
                      September 30, September 30,  September 30,  September 30,
                          2004          2003           2004           2003
                      ------------- -------------  -------------  -------------

Revenue ............   $9,565,006    $6,534,872     $3,112,922     $2,103,780
Depreciation and
 amortization ......    1,053,086     1,053,086        351,029        345,186
Operating income ...    2,000,357       627,958        989,091         66,305
Capital expenditures       36,045           --             --             --





<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 September 30, 2004, Compared to the Three Months Ended
September 30, 2003

Total revenue for the third quarter of 2004 was $3,113,000, compared to
$2,104,000 for the third quarter of 2003. The increase in total revenue is
primarily attributable to the $982,000 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 $820,000 to $1,309,000 for the third quarter of 2004. The
increase is a result of the increase in renewable attribute revenue net of
royalties, produced by the Providence Project in the current year.

General and administrative expenses decreased $90,000 to $190,000 for the third
quarter of 2004 as a result of the decrease in professional fees incurred in the
current period. The management fee decreased from $142,000 in the third 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 $31,000 in the third quarter of 2004 as a result
of the Providence Project paying off the balance of its debt in the first
quarter of 2004.

Equity loss from the Maine Hydro Projects decreased $194,000 to $126,000 for the
third quarter of 2004. The decrease in loss 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.

The equity loss from the Maine Biomass Projects decreased $31,000 from $343,000
in the third quarter of 2003 to $312,000 for the same period in 2004. The
decrease in the equity loss in the Maine Biomass Projects is primarily
attributable to the increase in revenues as a result of the Eastport facility
operating in the current year, partially offset by the increase in repairs and
maintenance costs incurred as the result of refurbishing, staffing and
restarting the idle Eastport plant.


Nine Months Ended September 30, 2004, Compared to the Nine Months Ended
September 30, 2003

Total revenue for the first nine months of 2004 was $9,565,000, compared to
$6,535,000 for the first nine months of 2003. The increase in total revenue is
primarily attributable to the $2,790,000 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 $1,294,000 to $3,008,000 for the first nine 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 decreased $42,000 to $618,000 for the first
nine months of 2004. The management fee decreased from $427,000 for the first
nine months of 2003 to $389,000 in the same period in 2004 as a result of the
Trust's lower net asset balance.

Interest expense was reduced by $95,000 from $109,000 for the first nine months
of 2003 to $14,000 for the first nine months 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 $662,000 to $553,000 for
the first nine 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 $1,304,000 from
$96,000 for the first nine months of 2003 to $1,400,000 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 nine months ended September 30,
2004 was $3,396,000 as compared to $2,583,000 for the nine months ended
September 30, 2003. The increase in cash flow from operating activities is
primarily the result of the advances from affiliates partially offset by the
increase in accounts receivable and deposits and the absence of the proceeds
received in the first quarter of 2003 from a 2002 insurance claim.

Cash used in investing activities was $300,000 for the first nine months of 2003
compared to $1,036,000 for the first nine months of 2004. The increase in cash
used in investing activities is due to the $36,000 used in the purchase of
machinery and equipment and $1,000,000 invested in the Maine Biomass projects in
the first nine months of 2004 compared to $300,000 in 2003.

Cash used in financing activities for the first nine months of 2004 was
$2,293,000 as compared to $2,225,000 for the first nine months of 2003. The
increase in cash used in financing activities is primarily due to the increase
in the distribution paid to the minority interest in 2004 partially offset by
the Trust transferring the restricted debt reserve fund to pay off the remaining
principal balance of long-term debt.

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. 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 from June 30, 2004 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

December 10, 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: December 10, 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: December 10, 2004

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