FORM 10-Q

                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

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

                  For the quarterly period ended June 30, 1999

                         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.)

   947 Linwood Avenue, Ridgewood, New Jersey                07450-2939
   (Address of principal executive offices)                  (Zip Code)

               (201) 447-9000
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, 1999

<PAGE>

Ridgewood Electric Power Trust IV
Consolidated Balance Sheet
--------------------------------------------------------------------------------


                                                 June 30,      December 31,
                                                  1999             1998
                                               ------------    ------------
                                                (unaudited)
Assets:
Cash and cash equivalents ..................   $  1,099,309    $  2,021,168
Accounts receivable, trade .................      1,201,724         617,973
Due from affiliates ........................        246,618         377,710
Other assets ...............................         49,553          57,975
                                               ------------    ------------
  Total current assets .....................      2,597,204       3,074,826
                                               ------------    ------------
Investments:
Maine Hydro Projects .......................      6,471,950       6,217,289
Maine Biomass Projects .....................      6,121,321       6,306,818
Santee River Rubber ........................      4,382,242       4,501,357
Electric power equipment
 held for resale ...........................        455,182         455,182

Plant and equipment ........................     16,651,406      16,359,211
Accumulated depreciation ...................     (2,535,002)     (2,073,744)
                                               ------------    ------------
                                                 14,116,404      14,285,467
                                               ------------    ------------

Electric power sales contract ..............      8,338,040       8,338,040
Accumulated amortization ...................     (1,780,013)     (1,502,081)
                                               ------------    ------------
                                                  6,558,027       6,835,959
                                               ------------    ------------

Spare parts inventory ......................        746,178         746,178
Debt reserve fund ..........................        650,107         637,108
                                               ------------    ------------
  Total assets .............................   $ 42,098,615    $ 43,060,184
                                               ------------    ------------

Liabilities and Shareholders' Equity:
Liabilities:
Current maturities of long-term debt .......   $    743,487    $    651,613
Accounts payable and accrued expenses ......        519,794         563,685
Due to affiliates ..........................        923,447         441,614
                                               ------------    ------------
  Total current liabilities ................      2,186,728       1,656,912

Long-term debt, less current portion .......      3,786,560       4,196,455
Minority interest in the
 Providence Project ........................      5,997,263       6,202,894

Commitments and contingencies

Shareholders' equity:
Shareholders' equity (476.8 shares
 issued and outstanding) ...................     30,231,856      31,098,950
Managing shareholder's accumulated deficit .       (103,792)        (95,027)
                                               ------------    ------------
  Total shareholders' equity ...............     30,128,064      31,003,923
                                               ------------    ------------

  Total liabilities and shareholders' equity   $ 42,098,615    $ 43,060,184
                                               ------------    ------------


          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,
                             1999          1998          1999            1998
                          -----------   -----------   -----------   -----------

Net sales ..............  $ 3,486,909   $ 3,431,187   $ 1,785,510   $ 1,727,715
Sublease income ........      184,500       184,500        92,250        92,250
                          -----------   -----------   -----------   -----------
  Total revenues .......    3,671,409     3,615,687     1,877,760     1,819,965

Cost of sales ..........    3,086,051     2,410,903     1,564,062     1,286,799
                          -----------    -----------    ----------  -----------

Gross profit ...........      585,358     1,204,784       313,698       533,166

General and
 administrative
 expenses ..............      351,449       341,795      168,818        154,798
Management fee .........      233,634       560,142      116,817        280,071
Project due diligence
 costs .................         --          19,169         --           19,169
Other expenses .........        4,780        10,022        4,780          2,928
                          -----------   -----------  -----------    -----------
Total other operating
 expenses ..............      589,863       931,128      290,415        456,966
                          -----------   -----------  -----------    -----------
Income (loss) from
 operations ............       (4,505)      273,656       23,283         76,200
                          -----------   -----------  -----------    -----------

Other income (expense):
  Interest income ......       45,576       276,254       22,004        112,857
  Interest expense .....     (226,406)     (255,406)    (111,303)      (125,976)
  Income from Maine
   Hydro Projects ......      654,661       687,540      117,526        361,010
  Income from Santee
   River Rubber ........       63,835          --         71,267           --
  Loss from Maine
   Biomass Projects ....     (410,497)     (311,033)    (242,094)       (43,176)
                          -----------   -----------  -----------    -----------
Net other income (loss)        127,169      397,355     (142,600)       304,715
                          -----------   -----------  -----------    -----------
Income (loss) before
 minority interest .....      122,664       671,011     (119,317)       380,915

Minority interest
 in the earnings of the
 Providence Project ....      (83,452)     (250,071)     (18,149)      (109,189)
                          -----------   -----------  -----------    -----------
Net income (loss) ......  $    39,212   $   420,940  $  (137,466)   $   271,726
                          -----------   -----------  -----------    -----------



        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,
 December 31, 1998 ......   $ 31,098,950    $    (95,027)   $ 31,003,923

Cash distributions ......       (905,914)         (9,157)       (915,071)

Net income for the period         38,820             392          39,212
                            ------------    ------------    ------------
Shareholders' equity,
 June 30, 1999 ..........   $ 30,231,856    $   (103,792)     30,128,064
                            ------------    ------------    ------------


          See accompanying notes to consolidated financial statements.

<PAGE>

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

                                                         Six Months Ended
                                                   ----------------------------
                                                  June 30, 1999    June 30, 1998
                                                   ------------    ------------
Cash flows from operating activities:
Net income .....................................   $     39,212    $    420,940
                                                   ------------    ------------
Adjustments  to  reconcile  net  income
 to net cash  flows  from  operating
 activities:
 Depreciation and amortization .................        739,190         596,566
 Minority interest in earnings of the
  Providence Project ...........................         83,452         250,071
 Income from unconsolidated Maine Hydro Projects       (654,661)       (687,540)
 Loss from unconsolidated Maine Biomass Projects        410,497         311,033
 Income from unconsolidated Santee River Rubber         (63,835)           --
 Changes in assets and liabilities:
  Increase in accounts receivable, trade .......       (583,751)       (456,076)
  Decrease in due from affiliates ..............        131,092          78,586
  Decrease (increase) in other assets ..........          8,422         (54,838)
  Decrease in accounts payable and accrued
   expenses ....................................        (43,891)        (45,371)
  Increase (decrease) in due to affiliates .....        481,833        (366,443)
                                                   ------------    ------------
  Total adjustments ............................        508,348        (374,012)
                                                   ------------    ------------
  Net cash provided by operating activities ....        547,560          46,928
                                                   ------------    ------------

Cash flows from investing activities:
 Loans to Maine Biomass Projects ...............       (225,000)       (250,000)
 Distributions from Maine Hydro Projects .......        400,000            --
 Distributions from Santee River Rubber ........        182,950            --
 Capital expenditures ..........................       (292,195)     (1,024,515)
 Deferred due diligence costs ..................           --          (252,095)
                                                   ------------    ------------
 Net cash provided by (used in) investing
  activities ...................................         65,755      (1,526,610)
                                                   ------------    ------------
Cash flows from financing activities:
 Cash distributions to shareholders ............       (915,071)     (1,878,320)
 Payments to reduce long-term debt .............       (318,021)       (289,019)
 Increase in debt reserve fund .................        (12,999)           --
 Distribution to minority interest .............       (289,083)       (342,382)
                                                   ------------    ------------
 Net cash used in financing activities .........     (1,535,174)     (2,509,721)
                                                   ------------    ------------

Net decrease in cash and cash equivalents ......       (921,859)     (3,989,403)

Cash and cash equivalents, beginning of year ...      2,021,168      11,086,281
                                                   ------------    ------------

Cash and cash equivalents, end of period .......      1,099,309    $  7,096,878
                                                   ------------    ------------


          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 financial  statements
contain  all  adjustments,   which  consist  of  normal  recurring  adjustments,
necessary  for the pair  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  financial  statements
included  in the 1998  Annual  Report  on Form  10-K,  which  should  be read in
conjunction with these financial statements. The year-end balance sheet data was
derived from audited financial statements,  but does not include all disclosures
required by generally accepted accounting principles. Certain prior year amounts
have been reclassified to conform to the current year presentation.

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.

2.  Maine Biomass Projects

In the first six  months of 1999,  the Trust  loaned  $225,000  to Indeck  Maine
Energy,  L.L.C.  ("Maine Biomass  Projects").  The loan is in the form of demand
notes that bear  interest  at 5% per annum.  Ridgewood  Electric  Power Trust V,
which owns an  identical  preferred  membership  interest  in the Maine  Biomass
Projects,  also made identical  loans to the Maine Biomass  Projects.  The other
Maine Biomass  Project  members also loaned  $450,000 in the first six months of
1999 to the Maine Biomass Projects with the same terms.

The Maine  Biomass  Projects  were  operated  by  Indeck  Operations,  Inc.,  an
affiliate of the members of the Maine Biomass  Projects.  The annual  operator's
fee is  $300,000,  of which  $200,00  is  payable  contingent  upon  the  Trusts
receiving their cumulative annual return. The management agreement had a term of
one year and  automatically  continued  for  successive  one year terms,  unless
canceled by either the Maine  Biomass  Projects or Indeck  Operations,  Inc. The
Maine Biomass Projects  exercised their right to terminate the contract of March
1, 1999 because certain  preferred  membership  interest  payments have not been
made.  Under an Operating  Agreement with the Trust,  Ridgewood Power Management
Corporation  ("Ridgewood  Management"),   an  entity  related  to  the  managing
shareholder  through  common  ownership,  will provide  management,  purchasing,
engineering, planning and administrative services to the Maine Biomass Projects.
Ridgewood Management charges the projects at its cost for these services and for
the allocable amount of certain overhead items.  Allocations of costs are on the
basis of  identifiable  direct  costs,  time records or in proportion to amounts
invested in projects

3.  Providence EPA Matter

In June 1999,  Ridgewood  Providence Power Partners,  L.P.  ("RPPP"),  a limited
partnership through which the Trust owns its limited partnership interest in the
Providence Project, settled the administrative  proceeding brought by the Region
I office of the U.S.  Environmental  Protection Agency ("EPA") for approximately
$86,000. As previously  disclosed the charges related to alleged  recordkeeping,
training  documentation and tank labelling  violations and did not relate to any
discharge of pollutants or direct danger to the environment.

4.  Summary Results of Operations for Selected Investments

Summary results of operations for the Maine Hydro projects,  which are accounted
for under the equity method, were as follows:

                               Six months ended June 30,
                                   1999         1998
Total revenue ...............   $2,861,095    3,037,670
Depreciation and amortization      550,907      544,715
Income from operations ......    1,349,818    1,380,957
Net income ..................    1,309,321    1,396,401

Summary  results  of  operations  for the  Maine  Biomass  projects,  which  are
accounted for under the equity method, were as follows:

                               Six months ended June 30,
                                   1999         1998
Total revenue ...............   $ 575,230      646,167
Depreciation and amortization      90,415       90,415
Loss from operations ........    (774,807)    (617,015)
Net loss ....................    (820,995)    (626,815)




<PAGE>

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

Dollar amounts in this discussion are generally 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, the Maine Biomass Projects and the Santee River Rubber
Project, which are owned 50% or less by the Trust.

Results of Operations

In the second quarter of 1999, the Trust had total revenue of $1,878,000,  which
is comparable with total revenue of $1,820,000 in the same period in 1998. Total
revenues  for the first six months of 1999 of  $3,671,000  were also  comparable
with  total  revenue of  $3,616,000  in the same  period in 1998.  Cost of sales
increased to $1,560,000 in the second  quarter of 1999  ($3,082,000 in the first
six months of 1999) from  $1,286,000 in the same period in 1998  ($2,411,000  in
the first six months of 1998) as a result of higher engine  maintenance costs at
the Providence  Project. A portion of the increase in maintenance costs resulted
from an engine failure in the first quarter of 1999.

General and  administrative  expenses in the second  quarter of 1999 of $169,000
were comparable with the $155,000  recorded in the same period in 1998.  General
and  administrative  expenses for the first six months of 1999 of $351,000  were
comparable with the $342,000 recorded in the same period in 1998. The management
fee decreased from $280,000 in the second quarter of 1998 ($560,000 in the first
six months of 1998) to  $117,000  in the same  period in 1999  ($234,000  in the
first six months of 1999) as a result of the Managing  Shareholder's decision to
voluntarily waive one-half of its management fee for an indefinite period.

Interest  income declined by $89,000 from $113,000 in the second quarter of 1998
to $24,000 in the second quarter of 1998 due to the lower average cash balances.
The decline in interest  income from  $276,000 for the six months ended June 30,
1998 to  $46,000  for the same  period  was also  due to  lower  cash  balances.
Interest  expense  was  reduced  from  $126,000  in the  second  quarter of 1998
($255,000 for the first six months of 1998) to $111,000 in the second quarter of
1999  ($226,000  for the  first  six  months  of 1999)  due to lower  borrowings
outstanding at the Providence Project.

Equity  income  from the Maine Hydro  Projects  decreased  from  $361,000 in the
second  quarter  of 1998 to  $118,000  in the same  period  in 1999 due to lower
production  because of  below-average  river  flows.  However,  river flows were
higher than  average in the first three months of 1999  resulting in  comparable
results  for the first six months of 1999 and 1998  ($655,000  for the first six
months of 1999 compared to $688,000 for the first six months of 1998).

The equity loss from the shut-down Maine Biomass Projects increased from $43,000
in the  second  quarter of 1998  ($311,000  for the first six months of 1998) to
$242,000  in the second  quarter of 1999  ($410,000  for the first six months of
1999) due to lower  revenues  from the sale of installed  capacity at the plants
and  additional  maintenance  costs  incurred  to prepare the plants for limited
summer operations.

The Trust  recorded  income from its equity  interest in the Santee River Rubber
project of $71,000  and  $64,000 in the second  quarter  and first six months of
1999, respectively.  The Trust acquired its investment in Santee River Rubber in
the third quarter of 1998.  The Santee River Rubber project is expected to begin
operations in the last quarter of 1999.

The decrease in the minority interest in the earnings of the Providence  Project
from $109,000 in the second  quarter of 1998  ($250,000 for the first six months
of 1998) to  $18,000 in the second  quarter of 1999  ($83,000  for the first six
months of 1999) is a result of lower earnings from the Providence Project caused
primarily by higher maintenance costs.

Liquidity and Capital Resources

In 1997,  the Trust and Fleet Bank,  N.A. (the "Bank")  entered into a revolving
line of credit agreement,  whereby the Bank provides a three year committed line
of credit  facility of $1,150,000.  Outstanding  borrowings bear interest at the
Bank's  prime rate or, at the  Trust's  choice,  at LIBOR plus 2.5%.  The credit
agreement  requires  the Trust to maintain a ratio of total debt to tangible net
worth of no more than 1 to 1 and a minimum debt service  coverage  ratio of 2 to
1. The credit facility was obtained in order to allow the Trust to operate using
a minimum amount of cash,  maximize the amount invested in Projects and maximize
cash distributions to shareholders. There have been no borrowings under the line
of credit in 1999.

The Managing Shareholder  announced a change of distribution policy in May 1999.
Distributions  to  Investors  from the  Trust,  which had been made on a monthly
basis,  are now made on a  quarterly  basis in  order to  reduce  administrative
burdens.

In addition,  the Managing Shareholder reduced the Trust's distribution rate per
share to $1,000 per quarter,  equal to a 4% distribution rate per year. The rate
paid in 1998 was 6% per year.  The  reduction  is  expected to continue at least
into early 2000. The Managing  Shareholder also has voluntarily  waived one-half
of its management  fee  (approximately  $39,000 per month)  beginning in January
1999.  The Managing  Shareholder is not obligated to continue the waiver and may
end it at any time in its sole discretion. The Trust anticipates that the Santee
River and Maine Biomass plants will begin to make  significant  contributions to
cash flow in mid- to-late 2000,  which might permit an increase in distributions
at that time. However,  the Trust cannot assure that these results will occur or
that the distribution rate will be maintained or increased.

Other  than  investments  of  available  cash  in  power  generation   Projects,
obligations of the Trust are generally  limited to payment of Project  operating
expenses, payment of a management fee to the Managing Shareholder,  payments for
certain  accounting  and legal  services to third persons and  distributions  to
shareholders  of  available   operating  cash  flow  generated  by  the  Trust's
investments.  The Trust's  policy is to distribute as much cash as is prudent to
shareholders.  Accordingly,  the Trust has not  found it  necessary  to retain a
material amount of working  capital.  The amount of working capital  retained is
further reduced by the availability of the line of credit facility.

The  Trust  anticipates  that,  during  1999,  its cash  flow  from  operations,
unexpended  offering  proceeds and line of credit  facility  will be adequate to
fund its obligations.
Year 2000 remediation

Please refer to the Trust's disclosures at Item 7 - Management's  Discussion and
Analysis  of its Annual  Report on Form 10-K for 1998 for a  discussion  of year
2000 issues affecting the Trust.  Since that report was filed, the only material
change in the Trust's year 2000  compliance  is that the changes to the Managing
Shareholder's  investor  distribution  system have been  completed.  No material
changes in the Trust's remediation efforts or its plans for year 2000 compliance
have occurred.

<PAGE>

                           PART II - OTHER INFORMATION

Item 1. Legal Proceedings

In June 1999,  Ridgewood  Providence Power Partners,  L.P.  ("RPPP"),  a limited
partnership through which the Trust owns its limited partnership interest in the
Providence Project, settled the administrative  proceeding brought by the Region
I office of the U.S.  Environmental  Protection Agency ("EPA") for approximately
$86,000.  As previously  disclosed in the Trust's Annual Report on Form 10-K for
1998, the charges related to alleged  recordkeeping,  training documentation and
tank  labelling  violations and did not relate to any discharge of pollutants or
direct danger to the environment.

Item 5. Other Information

Ridgewood Power  Corporation has been the managing  shareholder of the Trust. It
organized  the Trust and acted as managing  shareholder  until April 1999. On or
about  April 20,  1999 it was  merged  into  Ridgewood  Power  LLC, a New Jersey
limited  liability  company,  which thus became the Managing  Shareholder of the
Trust. Ridgewood Power LLC was organized in early April 1999 and has no business
other than acting as the successor to Ridgewood Power  Corporation.  No material
change in the Trust's operations or business will result from the merger.

Robert E. Swanson has been the President,  sole director and sole stockholder of
Ridgewood Power  Corporation since its inception in February 1991 and is now the
controlling member, sole manager and President of the Managing Shareholder.  Mr.
Swanson  currently is the sole equity owner of the Managing  Shareholder  but is
considering a transfer of 53% of the equity  ownership to two family trusts.  If
that  transfer is made, he will have the power on behalf of those trusts to vote
or dispose of the membership equity interests owned by them and accordingly will
continue to have sole control of the Managing Shareholder.  Further, Mr. Swanson
is designated as the sole manager of the Managing  Shareholder  in its operating
agreement.

Ridgewood Power LLC is also the managing  shareholder of the other five business
trusts   organized  by  Ridgewood  Power   Corporation  to  participate  in  the
independent electric power industry.

Similarly,  Ridgewood  Power  Management  Corporation,  which  operates  certain
Projects  on behalf of the Trust,  was merged on or about  April 20, 1999 into a
new New Jersey limited  liability  company,  Ridgewood Power Management LLC. The
ownership and control of Ridgewood Power Management LLC are the same as those of
Ridgewood  Power LLC and its only  business is to be the  successor to Ridgewood
Power  Management  Corporation.  No  material  change  in the  operation  of the
Projects is expected as a result of that merger.



<PAGE>


                                   SIGNATURES

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

                        RIDGEWOOD ELECTRIC POWER TRUST IV
                                   Registrant





August 13, 1999                 By /s/ Martin V. Quinn
Date                            Martin V. Quinn
                                Senior  Vice   President  and  Chief   Financial
                                Officer (signing on behalf of the Registrant and
                                as principal financial officer)