UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

(Mark One)

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

For the quarterly period ended June 30, 2010

or

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

For the transition period from _____ to _____

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 Incorporation or Organization)		(I.R.S. Employer Identification No.)

1314 King Street, Wilmington, DE		19801
(Address of Principal Executive Offices)		(Zip Code)

	(302) 888-7444
	(Registrant’s Telephone Number, Including Area Code)

Not Applicable

(Former name, former address and former fiscal year, if changed since last report)

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 þ No o

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).

Yes o No o

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of “large accelerated filer”, “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act. (Check one):

Large accelerated filer o	Accelerated filer o	Non-accelerated filer o	Smaller reporting company þ
		(Do not check if a smaller reporting company)

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).

Yes o No þ

As of July 31, 2010, there were 476.8 Investor Shares outstanding.

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FORM 10-Q

TABLE OF CONTENTS


PART I.	FINANCIAL INFORMATION	Page

Item 1.	Financial Statements	1

Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	8

Item 3.	Quantitative and Qualitative Disclosures About Market Risk	10

Item 4.	Controls and Procedures	10

PART II.	OTHER INFORMATION

Item 1.	Legal Proceedings	10

Item 1A.	Risk Factors	10

Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	10

Item 3.	Defaults Upon Senior Securities	10

Item 4.	Reserved	10

Item 5.	Other Information	10

Item 6.	Exhibits	11

SIGNATURES		12

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PART I. FINANCIAL INFORMATION

ITEM 1. FINANCIAL STATEMENTS

RIDGEWOOD ELECTRIC POWER TRUST IV
CONDENSED CONSOLIDATED BALANCE SHEETS
(in thousands, except share data)

	June 30,			December 31,
	2010			2009
	(unaudited)
ASSETS
Current assets:
Cash and cash equivalents	$	7,540		$	7,804
Due from affiliates		408			606
Prepaid expenses and other current assets		41			24
Total current assets		7,989			8,434
Investment		921			2,001

Total assets	$	8,910		$	10,435

LIABILITIES AND SHAREHOLDERS’ EQUITY (DEFICIT)
Current liabilities:
Accounts payable and accrued expenses	$	13		$	98

Commitments and contingencies

Shareholders’ equity (deficit):
Shareholders’ equity (476.8 Investor Shares
issued and outstanding)		9,076			10,502
Managing Shareholder’s accumulated deficit
(1 management share issued and outstanding)		(179	)		(165	)
Total shareholders’ equity		8,897			10,337

Total liabilities and shareholders’ equity	$	8,910		$	10,435

The accompanying notes are an integral part of these condensed consolidated financial statements.

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RIDGEWOOD ELECTRIC POWER TRUST IV
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
(unaudited, in thousands, except per share data)

	Six Months Ended June 30,						Three Months Ended June 30,
	2010			2009			2010			2009

Operating expenses:
General and administrative expenses	$	211		$	443		$	32		$	158
Management fee to Managing Shareholder		155			328			77			164
Total operating expenses		366			771			109			322

Loss from operations		(366	)		(771	)		(109	)		(322	)

Other (expense) income:
Equity in loss of RILG		(1,080	)		(1,104	)		(343	)		(571	)
Equity in (loss) income of Maine Hydro		-			(92	)		-			15
Other income, net		6			375			3			99
Total other expense, net		(1,074	)		(821	)		(340	)		(457	)

Net loss	$	(1,440	)	$	(1,592	)	$	(449	)	$	(779	)


Managing Shareholder – Net loss	$	(14	)	$	(16	)	$	(4	)	$	(8	)
Shareholders – Net loss		(1,426	)		(1,576	)		(445	)		(771	)
Net loss per Investor Share		(2,991	)		(3,305	)		(933	)		(1,617	)
Distributions per Investor Share		-			15,000			-			-

The accompanying notes are an integral part of these condensed consolidated financial statements.

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RIDGEWOOD ELECTRIC POWER TRUST IV
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
(unaudited, in thousands)

	Six Months Ended June 30,
	2010			2009
Cash flows from operating activities:
Net cash (used in) provided by operating activities	$	(264	)	$	3,557

Cash flows from financing activities:
Cash distributions to shareholders		-			(7,224	)

Net decrease in cash and cash equivalents		(264	)		(3,667	)
Cash and cash equivalents, beginning of year		7,804			11,683

Cash and cash equivalents, end of period	$	7,540		$	8,016

The accompanying notes are an integral part of these condensed consolidated financial statements.

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RIDGEWOOD ELECTRIC POWER TRUST IV

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(unaudited, dollar amounts in thousands)

1. DESCRIPTION OF BUSINESS

Ridgewood Electric Power Trust IV (the “Trust”) is a Delaware trust formed on September 8, 1994. The Trust began offering shares in February 1995 and concluded its offering in September 1996. The objective of the Trust is to provide benefits to its shareholders through a combination of distributions of operating cash flow and capital appreciation. The Managing Shareholder of the Trust is Ridgewood Renewable Power LLC, a New Jersey limited liability company (the “Managing Shareholder” or “RRP”). The Trust has been organized to invest primarily in power generation facilities located in the US. The projects of the Trust have characteristics that qualify the projects for government incentives.

The Trust’s accompanying condensed consolidated financial statements include the accounts of the Trust. The Trust’s condensed consolidated financial statements also include the Trust’s 35.24% interest in Rhode Island LFG Genco, LLC (“RILG”), which is accounted for under the equity method of accounting, as the Trust has the ability to exercise significant influence but does not control the operating and financial policies of the investment. The Trust owned a 50% interest in Ridgewood Maine Hydro Partners, L.P. (“Maine Hydro”), which was sold in November 2009, as further discussed in Note 5.

On July 26, 2010, the Trust along with Ridgewood Electric Power Trust I (“Trust I”) (through its 100% ownership of Ridgewood Olinda LLC), Ridgewood Electric Power Trust III (“Trust III”) and Ridgewood Power B Fund/Providence Expansion (B Fund, and together with the Trust, Trust I and Trust IIII, the “Trusts”) entered into an interest purchase agreement to sell all of their respective limited liability company membership interests in RILG to MIP II Biopower LLC (“MIP”), which is affiliated with Macquarie Group Limited, an Australian based international company. A summary of the material terms and conditions of the interest purchase agreement was provided in a Current Report on Form 8-K filed with the SEC on July 29, 2010. As of the date of the filing of this report, consent solicitations regarding the approval of the sale have not been mailed to the shareholders of any of the Trusts.

The Trust has evaluated subsequent events and transactions through the date of the issuance of its financial statements, and concluded that except for the interest purchase agreement for the sale of RILG, there were no additional events or transactions that require adjustment to, or disclosure in the notes to, the condensed consolidated financial statements.

2. BASIS OF PRESENTATION

The accompanying condensed consolidated financial statements are unaudited and have been prepared pursuant to the rules of the United States Securities and Exchange Commission (the “SEC”) and, in the opinion of management, include all adjustments that are necessary for a fair presentation of the consolidated financial statements. Certain information and footnote disclosures normally included in consolidated financial statements prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) have been condensed or omitted pursuant to SEC rules. These condensed consolidated financial statements should be read in conjunction with the Trust’s Annual Report on Form 10-K for the year ended December 31, 2009, filed with the SEC on March 25, 2010 (the “2009 Form 10-K”). No significant changes have been made to the Trust’s accounting policies and estimates disclosed in its 2009 Form 10-K.

In the opinion of management, the condensed consolidated financial statements as of June 30, 2010, and for the six and three months ended June 30, 2010 and 2009, include all adjustments (consisting of normal recurring accruals) necessary for a fair presentation of the consolidated financial position, results of operations and cash flows for the periods presented. The results of operations for the six and three months ended June 30, 2010 and 2009, are not necessarily indicative of the results to be expected for the full year or any other period.

3. RECENT ACCOUNTING PRONOUNCEMENTS

Fair Value Measurements

In January 2010, the Financial Accounting Standards Board (“FASB”) amended its previous guidance to clarify and provide additional disclosure requirements relating to recurring and non-recurring fair value measurements and employers’ disclosures about postretirement benefit plan assets in order to provide greater level of disaggregated information and more robust disclosures about valuation techniques and inputs to fair value measurements. The Trust adopted these amended standards on January 1, 2010, with no material impact on its condensed consolidated financial statements. Additionally, these amended standards require presentation of disaggregated activity within the reconciliation for fair value measurements using significant unobservable inputs (Level 3), beginning in the first quarter of 2011. The Trust is currently evaluating the impact of adopting this guidance on its condensed consolidated financial statements.

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RIDGEWOOD ELECTRIC POWER TRUST IV

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(unaudited, dollar amounts in thousands)

Subsequent Events

In May 2009, the FASB issued guidance regarding subsequent events which establishes general standards of accounting for and disclosure of events that occur after the balance sheet date but before financial statements are issued or are available to be issued. It requires the disclosure of the date through which an entity has evaluated subsequent events and the basis for that date. The Trust adopted this guidance effective June 30, 2009, with no material impact on its consolidated financial statements. In February 2010, the FASB amended its previous guidance regarding subsequent events by removing the requirement for a registrant to disclose a date through which subsequent events have been evaluated.

4. CASH AND CASH EQUIVALENTS

The Trust considers all highly liquid investments with maturities, when purchased, of three months or less as cash and cash equivalents. At June 30, 2010, cash and cash equivalents exceeded federal insured limits by $7,193, all of which was invested either in US Treasury bills or money market accounts that invest solely in US government securities.

5. INVESTMENTS

RILG

The Trust owns 35.2%, Trust I owns 6.8%, Trust III owns 19.6% and B Fund owns 38.4% of RILG. Summarized statements of operations data for RILG for the six and three months ended June 30, 2010 and 2009 were as follows:

	Six Months Ended June 30,						Three Months Ended June 30,
	2010			2009			2010			2009

Revenues	$	5,159		$	6,972		$	2,923		$	3,257

Gross loss		(1,465	)		(1,356	)		(267	)		(1,015	)

Loss from operations		(3,066	)		(3,129	)		(975	)		(1,617	)

Net loss		(3,065	)		(3,132	)		(974	)		(1,619	)

Trust share of loss in RILG		(1,080	)		(1,104	)		(343	)		(571	)

On November 3, 2009, RILG received notice from the United States Department of Energy (“DOE”) that it had been awarded a grant of $14,973 towards development expenses relating to RILG expansion. The grant is subject to various final closing conditions, including DOE approval of a plan to finance the expansion construction to be submitted by RILG prior to December 31, 2010. As of June 30, 2010, RILG recorded $116 of grant revenue, which is included as revenues in the above table.

Currently, RILG sells all of its electrical output in the spot or day-ahead wholesale electricity market. Effective September 1, 2010, RILG will begin selling all of its electricity under a long-term fixed price contract with built in cost escalations to Connecticut Municipal Electric Energy Cooperative (“CMEEC”). Renewable Portfolio Standards Attributes (“RPS Attributes”) generated as a result of the volume of electricity produced by RILG are currently sold in the open market, but upon the commencement of the agreement with CMEEC, all RPS Attributes will be sold to CMEEC at a contracted price of $25 per megawatt hour, which is currently above spot market prices.

Maine Hydro

Maine Hydro was owned equally by the Trust and Ridgewood Electric Power Trust V (“Trust V”). On November 20, 2009, Maine Hydro entered into a purchase and sale agreement and sold all of its assets for cash. The total gross purchase price of the sale, including a post-closing adjustment made in 2010 for estimated working capital at the time of the sale, totaled $7,293, of which $3,646 was allocated to the Trust. In 2009, the Trust recorded a gain of $2,158 on the sale of Maine Hydro.

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RIDGEWOOD ELECTRIC POWER TRUST IV

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(unaudited, dollar amounts in thousands)

Summarized statement of operations data for Maine Hydro for the six and three months ended June 30, 2009 were as follows:

	Six Months Ended			Three Months Ended
	June 30, 2009			June 30, 2009

Revenues	$	1,575		$	772

Gross profit		502			171

(Loss) income from operations		(184	)		31

Net (loss) income		(184	)		31

Trust share of (loss) income in Maine Hydro		(92	)		15

6. TRANSACTIONS WITH AFFILIATES

The Trust records short-term payables to and receivables from certain of its affiliates in the ordinary course of business. The amounts payable to and receivable from its affiliates, other than amounts relating to management fees, do not bear interest. At June 30, 2010 and December 31, 2009, the Trust had outstanding intercompany receivables from affiliates of $408 and $606, respectively, primarily due from RILG.

7. COMMITMENTS AND CONTINGENCIES

In connection with RILG’s obligation to expand its electricity generating capacity, RILG is obligated, under the terms of various agreements with Rhode Island Resource Recovery Corporation (“RIRRC”), the owner and operator of the Central Landfill in Johnston, Rhode Island (the “Landfill”), to construct a new electric generating facility at the Landfill, with an estimated future construction cost of $130,000, and to assume primary responsibility for costs associated with the landfill gas collection system at the Landfill as of the first to occur of the commencement of operation of the new electric generating facility or December 31, 2014. As part of this commitment, RILG is also responsible for the development and construction of a sulfur treatment facility on the Landfill, the construction of new pipes and headers and the cost of new flares on the Landfill. Under an agreement with RIRRC, the cost of this construction is approximately $12,000 which will be split equally between RIRRC and RILG regardless of whether the sale of RILG is completed. If RILG fails to comply with its expansion obligations, it could forfeit its contracted gas rights. The Managing Shareholder is currently in negotiations to amend this agreement such that: 1) the obligation of RILG to build the sulfur treatment and flares increases to 100% of the costs, but is only an obligation of RILG if financing to complete the expansion is obtained, and 2) undertake site preparation work at an estimated cost of $500; with up to $500 being loaned to RILG by RIRRC.

A condition of the July 26, 2010, interest purchase agreement to sell RILG to MIP, is that if the shareholders of each of the Trusts, if asked in accordance with the interest purchase agreement, do not timely approve the sale, the Trusts must reimburse MIP for its reasonable documented out-of-pocket costs, fees and expenses incurred in connection with the sale and may be required, in certain circumstances, to pay a termination fee to MIP. As of the date of this report, MIP estimates that its out-of-pocket costs, fees and expenses through closing will total approximately $3,000.

On August 16, 2006, the Trust and several affiliated entities, including the Managing Shareholder, filed lawsuits against the former independent registered public accounting firm for the Trust and several affiliated entities, Perelson Weiner LLP (“Perelson Weiner”), in New Jersey Superior Court. The suit alleged professional malpractice and breach of contract in connection with audit and accounting services performed for the Trust and other plaintiffs by Perelson Weiner. On October 20, 2006, Perelson Weiner filed a counterclaim against the Trust and other plaintiffs, alleging breach of contract due to unpaid invoices with a combined total of approximately $1,200. In May 2010, this lawsuit was settled with no financial impact to the Trust.

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RIDGEWOOD ELECTRIC POWER TRUST IV

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(unaudited, dollar amounts in thousands)

The Trust may become subject to legal proceedings involving ordinary and routine claims related to its business. The ultimate legal and financial liability with respect to all such matters cannot be estimated with certainty and requires the use of estimates in recording liabilities for potential litigation settlements. Estimates for losses from litigation are disclosed if considered reasonably possible and accrued if considered probable after consultation with outside counsel. If estimates of potential losses increase or the related facts and circumstances change in the future, the Trust may be required to record additional litigation expense. While it is not possible to predict the outcome of the litigation discussed in this Note with certainty and some lawsuits, claims or proceedings may be disposed of unfavorably to the Trust, based on its evaluation of matters which are pending or asserted, the Trust’s management believes the disposition of such matters will not have a material adverse effect on the Trust’s business or its financial condition or results of operations.

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ITEM 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

This discussion and analysis of the operating results and financial condition of the Trust as of June 30, 2010 is intended to help readers analyze the accompanying condensed consolidated financial statements, notes and other information contained in this document. Results of operations for the six and three months ended June 30, 2010 are not necessarily indicative of results to be attained for any other period. This discussion and analysis should be read in conjunction with the accompanying condensed consolidated financial statements, notes and other information included elsewhere in this report as well as the consolidated financial statements, notes and other information and Item 7. “Management’s Discussion and Analysis of Financial Condition and Results of Operations” included in the Trust’s 2009 Form 10-K.

Forward-Looking Statements

Certain statements discussed in this item and elsewhere in this Quarterly Report on Form 10-Q constitute forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. These forward-looking statements generally relate to the Trust’s plans, objectives and expectations for future events and include statements about the Trust’s expectations, beliefs, plans, objectives, intentions, assumptions and other statements that are not historical facts. These statements are based upon management’s expectations, opinions and estimates as of the date they are made. Although management believes that the expectations, opinions and estimates reflected in these forward-looking statements are reasonable, such forward-looking statements are subject to known and unknown risks and uncertainties that may be beyond the Trust’s control, which could cause actual results, performance and achievements to differ materially from the results, performance and achievements projected, expected, expressed or implied by the forward-looking statements. Examples of events that could cause actual results to differ materially from historical results or those anticipated include:

the timing or terms of any sale of the Trust’s assets,

whether the landfill gas-fired electric generating project will be able to obtain financing required to expand and make planned changes to its operations,

the outcome of the matters described in Part I, Item 1, Note 7. “Commitments and Contingencies” of this report,

changes in political and economic conditions, or federal or state regulatory structures,

government mandates, including those associated with climate change,

the ability of customers to pay for energy received,

supplies and prices of fuels,

operational status of generating plants, including mechanical breakdowns, and

volatility in the price for electric energy, natural gas, or renewable energy.

Additional information concerning the factors that could cause actual results to differ materially from those in the forward-looking statements is contained in this report and in Item 1A. “Risk Factors”, Item 7. “Management’s Discussion and Analysis of Financial Condition and Results of Operations” and elsewhere in the Trust’s 2009 Form 10-K. Any forward-looking statement that the Trust makes, speaks only as of the date of this report. The Trust undertakes no obligation to publicly update or revise any forward-looking statements or cautionary factors, as a result of new information, future events or otherwise, except as required by law.

Critical Accounting Policies and Estimates

The following discussion and analysis of the Trust’s financial condition and results of operations are based upon the Trust’s condensed consolidated financial statements, which have been prepared in conformity with GAAP. In preparing these financial statements, the Trust is required to make certain estimates and assumptions that affect the reported amounts of the Trust’s assets, liabilities, revenues and expenses, including the disclosure of contingent assets and liabilities. The Trust evaluates these estimates and assumptions on an ongoing basis. The Trust bases its estimates and assumptions on historical experience and on various other factors that the Trust believes to be reasonable at the time the estimates and assumptions are made. However, future events and their effects cannot be predicted with absolute certainty. Therefore, the determination of estimates requires the exercise of judgment. Actual results may differ from these estimates and assumptions under different circumstances or conditions, and such differences may be material to the condensed consolidated financial statements. No material changes have been made to the Trust’s critical accounting policies and estimates disclosed in its 2009 Form 10-K.

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Results of Operations and Changes in Financial Condition

Six months ended June 30, 2010 compared to the six months ended June 30, 2009

General and administrative expenses decreased $0.2 million from $0.4 million for the six months ended June 30, 2009 to $0.2 million for the same period in 2010 primarily due to a decrease in professional fees.

Management fees to the Managing Shareholder declined by $0.2 million from $0.3 million for the six months ended June 30, 2009 to approximately $0.1 million for the same period in 2010, due to a decrease in the net asset value of the Trust.

For the six months ended June 30, 2010 and 2009, the Trust recorded equity loss of $1.1 million from its investment in RILG. Power generation revenue decreased as a result of a long-term power contract terminating in January 2010 and electric generation now being sold at a lower aggregate price in the open market. This was offset by decreases in maintenance expenses, royalty expenses and depreciation expenses. RILG operating results for both the 2010 and 2009 periods also include approximately $1.2 million of engineering development and legal fees relating to planned plant expansion.

For the six months ended June 30, 2009, the Trust recorded equity loss of $0.1 million from its investment in Maine Hydro. In November 2009, Maine Hydro entered into a purchase and sale agreement and sold for cash, all of the assets of Maine Hydro.

During the 2009 period, the Trust recorded other income of $0.4 million, which primarily represents the sale of RPS Attributes that were associated with electricity produced by Indeck Maine Energy, LLC (“Indeck Maine”) prior to its sale in December 2008.

Total assets decreased $1.5 million from $10.4 million at December 31, 2009 to $8.9 million at June 30, 2010 primarily due to decreases of approximately $1 million from the Trust’s investment in RILG, $0.2 million in intercompany receivables and $0.3 million in cash and cash equivalents.

Three months ended June 30, 2010 compared to the three months ended June 30, 2009

For the three months ended June 30, 2010, the Trust recorded equity loss of $0.3 million from its investment in RILG compared to equity loss of $0.6 million for the same period in 2009. The decrease in equity loss of $0.3 million was primarily attributable to a decrease in maintenance expenses and depreciation expenses, partially offset by a decrease in power generation revenue as a result of the long-term power contract terminating in January 2010 and electric generation now being sold at a lower aggregate price in the open market. RILG operating results for both the 2010 and 2009 periods also include approximately $0.5 million of engineering development and legal fees relating to planned plant expansion.

Liquidity and Capital Resources

Six months ended June 30, 2010 compared to the six months ended June 30, 2009

At June 30, 2010 the Trust had cash and cash equivalents of $7.5 million, a decrease of $0.3 million from $7.8 million at December 31, 2009, as a result of cash used in operating activities.

Cash used in operating activities for the six months ended June 30, 2010 was $0.3 million as compared to cash provided by operating activities of $3.6 million for the same period in 2009. This decrease in cash flow provided by operating activities of approximately $3.9 million in the 2010 period was primarily due to the 2009 collection of amounts related to Indeck Maine’s operations net of related distributions to Trust V and Indeck Energy Services, Inc.

There were no financing activities for the 2010 period. For the six months ended June 30, 2009, the Trust used cash of $7.2 million relating to the cash distributions to shareholders.

Future Liquidity and Capital Resource Requirements

The Trust expects cash flows from its equity investment in RILG, along with existing cash, cash equivalents and borrowing capabilities will be sufficient to provide working capital and fund capital expenditures of the Trust, but not for its investment in RILG, for the next 12 months.

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Off-Balance Sheet Arrangements and Contractual Obligations and Commitments

The Trust has no off-balance sheet arrangements.

For a discussion of developments regarding the Fund’s contractual obligations, see Note 7 “Commitments and Contingencies” in the notes to the condensed consolidated financial statements in Part I, Item 1 of this report.

ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Not required.

ITEM 4. CONTROLS AND PROCEDURES

In accordance with Rule 13a-15(b) of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), the Trust’s management, with the participation of the Trust’s Chief Executive Officer and Chief Financial Officer, has evaluated the effectiveness of the Trust’s disclosure controls and procedures, as defined in Exchange Act Rule 13a-15(e). Based on this evaluation, the Trust’s Chief Executive Officer and Chief Financial Officer concluded that the Trust’s disclosure controls and procedures were effective as of the end of the period covered by this report to ensure that information required to be disclosed by the Trust in reports filed pursuant to the Exchange Act is recorded, processed, summarized and reported within the time periods specified in SEC rules and forms and that information required to be disclosed by the Trust is accumulated and communicated to senior management so as to allow timely decisions regarding required disclosure.

Changes in Internal Control over Financial Reporting

The Trust’s Chief Executive Officer and Chief Financial Officer have concluded that there was no change in the Trust's internal control over financial reporting (as such term is defined in Rule 13a-15(f) under the Exchange Act) that occurred during the quarter ended June 30, 2010 that has materially affected, or is reasonably likely to materially affect, the Trust’s internal control over financial reporting.

PART II. OTHER INFORMATION

ITEM 1. LEGAL PROCEEDINGS

For a discussion of developments regarding the Fund’s legal proceedings, see Note 7 “Commitments and Contingencies” in the notes to the condensed consolidated financial statements in Part I, Item 1 of this report.

ITEM 1A. RISK FACTORS

There have been no material changes to the risk factors disclosed in the Trust's 2009 Form 10-K.

ITEM 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

None.

ITEM 3. DEFAULTS UPON SENIOR SECURITIES

None.

ITEM 4. RESERVED

ITEM 5. OTHER INFORMATION

None.

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ITEM 6. EXHIBITS

Exhibit No.		Description

31.1	*	Certification of Randall D. Holmes, Chief Executive Officer of the Registrant, pursuant to Securities Exchange Act Rule 13a-14(a).

31.2	*	Certification of Jeffrey H. Strasberg, Chief Financial Officer of the Registrant, pursuant to Securities Exchange Act Rule 13a-14(a).

32	*	Certifications pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of The Sarbanes-Oxley Act of 2002, signed by Randall D. Holmes, Chief Executive Officer of the Registrant, and Jeffrey H. Strasberg, Chief Financial Officer of the Registrant.

______________________

* Filed herewith.

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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


Date: August 11, 2010	By:	/s/ Randall D. Holmes
		Randall D. Holmes
		President and Chief Executive Officer
		(Principal Executive Officer)



Date: August 11, 2010	By:	/s/ Jeffrey H. Strasberg
		Jeffrey H. Strasberg
		Executive Vice President and Chief Financial Officer
		(Principal Financial and Accounting Officer)

RIDGEWOOD ELECTRIC POWER TRUST IV 10-Q