Filed Pursuant to Rule 424(b)(3)

Registration No. 333-266757

OPAL FUELS INC.

UP TO 181,764,740 SHARES OF CLASS A COMMON STOCK

This prospectus relates to the issuance by us of up to (i) 9,223,261shares of Class A common stock, par value $0.0001 per share (the “Class A common stock”) underlying Private Placement Warrants (as defined in this prospectus) issued by the Company under the Business Combination Agreement that were originally purchased at a purchase price of $1.00 per warrant, which warrants are exercisable for shares of our Class A common stock at an exercise price of $11.50 per share; and (ii) 6,223,233shares of Class A common stock underlying Public Warrants (as defined in this prospectus) issued by the Company under the Business Combination Agreement that were originally issued as part of the units sold by Arclight at a purchase price of $10.00 per unit in its initial public offering, which warrants are exercisable for shares of our Class A common stock at an exercise price of $11.50 per share.

This prospectus also relates to the offer and sale from time to time by the selling securityholders named in this prospectus (the “Selling Holders”) of:

(i)10,838,609shares of Class A common stock issued under the Business Combination Agreement, dated as of December 2, 2021 (as the same has been or may be amended, modified, supplemented or waived from time to time, the “BCA” or the “Business Combination Agreement”), by and among ArcLight Clean Transition Corp. II (“ArcLight”), Opal Fuels LLC (“Opco”) and Opal Holdco LLC (“OPAL Holdco”) to ARCC Beacon LLC (“Ares”), ArcLight CTC Holdings II, L.P. (“Sponsor”) and certain former directors of ArcLight originally acquired by such parties for an effective purchase price of approximately $0.003 per share;

(ii)144,399,037shares of Class A common stock issuable upon the conversion of Class C common stock issuable to Opal Holdco and Hillman RNG Investments, LLC (the “Opco Common Equityholders”) upon the exchange of Opco Common Units (as defined below) and the cancellation of an equal number of shares of Class D common stock (as defined in this prospectus) originally issued as consideration in connection with the Business Combination at a per share value of $10.00 per share;

(iii)11,080,600shares of Class A common stock originally issued and sold to certain of the Selling Holders pursuant to subscription agreements dated as of December 2, 2021 (collectively, the “PIPE Investors”) at a purchase price of $10.00 per share; and

(iv)9,223,261shares of class A common stock underlying the Private Placement Warrants.

In connection with the Business Combination, holders of 27,364,124 of Arclight’s Class A ordinary shares, or 87.94% of the shares with redemption rights, exercised their right to redeem their shares for cash at a redemption price of approximately $10.00 per share, for an aggregate redemption amount of $274,186,522. The shares of Class A common stock being offered for resale pursuant to this prospectus by the Selling Holders represent approximately 708% of shares of Class A common stock outstanding of the Company as of October 13, 2022 (without giving effect to the issuance of shares upon exercise of outstanding Warrants and upon the conversion of Class C common stock to be issued to the Opco Common Equityholders upon the exchange by them of Opco Common Units). Given the substantial number of shares of Class A common stock being registered for potential resale by Selling Holders pursuant to this prospectus, the sale of shares by the Selling Holders, or the perception in the market that the selling Holders of a large number of shares intend to sell shares, could increase the volatility of the market price of our Class A common stock or result in a significant decline in the public trading price of our Class A common stock. Even if our trading price is significantly below $10.00, the offering price for the units offered in Arclight’s IPO, certain of the Selling Holders, including the Sponsor, may still have an incentive to sell shares of our Class A common stock because they purchased the shares at prices lower than the public investors or the current trading price of our Class A common stock. For

example, based on the closing price of our Class A common stock of $6.23 as of October 13, 2022, Sponsor and other holders of the shares of our Class A common stock that were originally purchased by Arclight’s Sponsor in a private placement prior to Arclight’s initial public offering (the “Founder Shares”) would experience a potential profit of approximately $6.227 per share, or approximately $48,440,306 in the aggregate.

We will not receive any proceeds from the sale of shares of Class A common stock by the Selling Holders pursuant to this prospectus. We could receive up to an aggregate of $177,634,681 if all of the Warrants are exercised for cash. However, we will only receive such proceeds if and when the holders of the Warrants choose to exercise them. The exercise of the Warrants, and any proceeds we may receive from their exercise, are highly dependent on the price of our Class A common stock and the spread between the exercise price of the Warrants and the price of our Class A common stock at the time of exercise. We have 15,446,494 outstanding Warrants to purchase 15,446,494shares of our Class A common stock, exercisable at an exercise price of $11.50 per share. If the market price of our Class A common stock is less than the exercise price of a holder’s Warrants, it is unlikely that holders will choose to exercise. As of October 13, 2022, the closing price of our Class A common stock was $6.23 per share. There can be no assurance that the Warrants will be in the money prior to their expiration. In addition, the Sponsor (as defined herein), or its permitted transferees, have the option to exercise the Private Placement Warrants on a cashless basis. As such, it is possible that we may never generate any cash proceeds from the exercise of our Warrants. We will bear all costs, expenses and fees in connection with the registration of the securities. The Selling Holders will bear all commissions and discounts, if any, attributable to their respective sales of the securities.

Our registration of the securities covered by this prospectus does not mean that either we or the Selling Holders will issue, offer or sell, as applicable, any of the Class A common stock. The Selling Holders may offer and sell the securities covered by this prospectus in a number of different ways and at varying prices. We provide more information about how the Selling Holders may sell the shares in the section entitled “Plan of Distribution.”

You should read this prospectus and any prospectus supplement or amendment carefully before you invest in our Class A common stock.

Our shares of Class A common stock are listed on the Nasdaq Capital Market (“Nasdaq”) under the symbol “OPAL.” On October 13, 2022, the closing price of our Class A common stock was $6.23 per share. Our public warrants are listed on Nasdaq under the symbol “OPALW.” On October 13, 2022, the closing price of our public warrants was $1.09 per warrant.

We are an “emerging growth company,” as that term is defined under the federal securities laws and, as such, are subject to certain reduced public company reporting requirements.

Investing in our securities involves risks that are described in the “Risk Factors” section beginning on page 12 of this prospectus.

Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of the securities to be issued under this prospectus or determined if this prospectus is truthful or complete. Any representation to the contrary is a criminal offense.

The date of this prospectus is November 8, 2022.

TABLE OF CONTENTS

	Page
TRADEMARKS	ii
SELECTED DEFINITIONS	iii
CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING STATEMENTS	vii
SUMMARY	1
SELECTED HISTORICAL CONSOLIDATED FINANCIAL INFORMATION	9
MARKET PRICE, TICKER SYMBOL, AND DIVIDEND INFORMATION	11
RISK FACTORS	12
USE OF PROCEEDS	50
UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL INFORMATION	51
MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS	68
BUSINESS	85
MANAGEMENT	102
EXECUTIVE COMPENSATION	107
DESCRIPTION OF SECURITIES	111
BENEFICIAL OWNERSHIP	125
SELLING HOLDERS	128
CERTAIN RELATIONSHIPS AND RELATED PARTY TRANSACTIONS	131
UNITED STATES FEDERAL INCOME TAX CONSIDERATIONS	137
PLAN OF DISTRIBUTION	144
LEGAL MATTERS	148
EXPERTS	148
WHERE YOU CAN FIND MORE INFORMATION	148
INDEX TO FINANCIAL STATEMENTS	F-1

You should rely only on the information contained in this prospectus. No one has been authorized to provide you with information that is different from that contained in this prospectus. This prospectus is dated as of the date set forth on the cover hereof. You should not assume that the information contained in this prospectus is accurate as of any date other than that date.

i

TRADEMARKS

This document contains references to trademarks and service marks belonging to other entities. Solely for convenience, trademarks and trade names referred to in this prospectus may appear without the ® or ™ symbols, but such references are not intended to indicate, in any way, that the applicable licensor will not assert, to the fullest extent under applicable law, its rights to these trademarks and trade names. We do not intend our use or display of other companies’ trade names, trademarks or service marks to imply a relationship with, or endorsement or sponsorship of us by, any other companies.

ii

SELECTED DEFINITIONS

When used in this prospectus, unless the context otherwise requires:

“ArcLight” refers to ArcLight Clean Transaction Corp. II, a blank check company incorporated as a Cayman Islands exempt company, and our previous name prior to the Closing.

“Ares” refers to ARRC Beacon LLC, a Delaware limited liability company.

“BCA” or “Business Combination Agreement” refers to the Business Combination Agreement dated as of December 2, 2021 (as the same has been or may be amended, modified, supplemented or waived from time to time), by and among ArcLight, Opco and OPAL Holdco.

“Business Combination” refers to the transaction contemplated by the BCA.

“Bylaws” refers to the bylaws of OPAL.

“Charter” refers to certificate of incorporation of OPAL.

“Class A common stock” refers to the shares of Class A common stock, par value $0.0001 per share, of OPAL.

“Class B common stock” refers to the shares of Class B common stock, par value $0.0001 per share, of OPAL.

“Class C common stock” refers to the shares of Class C common stock, par value $0.0001 per share, of OPAL.

“Class D common stock” refers to the shares of Class D common stock, par value $0.0001 per share, of OPAL.

“Class A Units” refers to the Class A Units as defined in the Second A&R LLC Agreement.

“Class B Units” refers to the Class B Units as defined in the Second A&R LLC Agreement.

“Closing” refers to the closing of the Business Combination.

“Closing Date” refers to July 21, 2022.

“Common Stock” refers to the collective shares of Class A common stock, Class B common stock, Class C common stock and Class D common stock.

“Company”, “we”, “our”, “us” or similar terms refers to OPAL Fuels Inc. individually or on a consolidated basis, as the context may require.

“Exchange Act” refers to the Securities Exchange Act of 1934, as amended.

“FASB” refers to the Financial Accounting Standards Board.

“Fortistar” refers to Fortistar LLC, a Delaware limited liability company.

“Fueling Stations” refers to facilities where (i) natural gas is dispensed into fuel tanks of vehicles for use as transportation fuel, and (ii) transactional data from the dispensing of the fuel is recorded so that Environmental Attributes can be subsequently reported, matched with the dispensed fuel to the extent sourced from RNG, and generated under the federal or state RFS or LCFS programs and other current and potential future programs aimed at providing support for RNG into the transportation market. At the Fueling Stations, the natural gas is pressurized using compressor systems and, in this state, is referred to as compressed natural gas (“CNG”). Because Environmental Attributes associated with RNG are nominated/assigned to the physical quantity of CNG dispensed at the Fueling Station, when the CNG is dispensed into to fuel tanks for use as transportation fuel and subsequently reported to the EPA and/or state environmental agency and matched with the production of RNG, the respective RINs and LCFS credits are generated. Some of these stations are designed, developed, constructed, operated and maintained by us while others are third party stations where we may only provide maintenance services.

iii

“Hillman” refers to Hillman RNG Investments, LLC, a Delaware limited liability company.

“Investment Company Act” refers to the Investment Company Act of 1940, as amended.

“Investor Rights Agreement” refers to the Investor Rights Agreement, dated July 21, 2022, by and among OPAL Fuels Inc., each of the Sellers named therein, the Sponsor and the Sponsor Principals as included in Exhibit 10.7 to the Current Report on Form 8-K, filed with the SEC on July 27, 2021, as the same may be amended, modified, supplemented or waived from time to time in accordance with its terms.

“IPO” refers to ArcLight’s initial public offering of its Class A ordinary shares and ArcLight Public Warrants pursuant to the IPO Registration Statement and completed on March 25, 2021.

“IPO Registration Statement” refers to ArcLight’s Registration Statement on Form S-1, filed with the SEC (File No. 333-252730), on March 22, 2021.

“Meteora” refers to Meteora Capital Partners and its affiliates.

“Nasdaq” refers to the Nasdaq Capital Market.

“NextEra” refers to Mendocino Capital, LLC, a Delaware limited liability company.

“OPAL” and “OPAL Fuels” refers to OPAL Fuels Inc., a Delaware corporation.

“our Board” refers to our board of directors.

“OPAL Holdco” refers to OPAL Holdco LLC, a Delaware limited liability.

“OPAL Preferred Stock” refers to our shares of preferred stock, par value $0.0001 per share.

“Private Placement Warrants” refers to the 9,223,261 redeemable warrants that were exchanged for the ArcLight Private Placement Warrants in connection with the Closing, entitling the holder thereof to purchase Class A common stock.

“Public Warrants” refers to the 6,223,233 redeemable warrants exchanged for the ArcLight Public Warrants in connection with the Closing, entitling the holder thereof to purchase Class A common stock.

“Warrants” refers collectively to the Private Placement Warrants together with the Public Warrants.

“Opco” refers to OPAL Fuels LLC, a Delaware limited liability company.

“Opco Common Equityholders” refers to OPAL Holdco and Hillman.

“Opco Common Units” refers to the Class B Units resulting from the re-classification of the collective Opco common units existing immediately prior to the Closing.

“Series A Preferred Units” refers to the 1,000,000 Series A preferred units of Opco held by NextEra.

“Series A-1 Preferred Units” refers to the 300,000 Series A-1 preferred units of Opco held by Hillman.

“Organizational Documents” refers to the Charter and the Bylaws;

“Person” means an individual, partnership, corporation, limited liability company, joint stock company, unincorporated organization or association, trust, joint venture or other similar entity, whether or not a legal entity.

“PIPE Investment” refers to the PIPE Investors that purchased a total of 11,080,600 shares of Class A common stock in connection with the Closing at a cash purchase price of $10.00 per share pursuant to the Subscription Agreements.

“PIPE Investors” refers, collectively, to the institutional and accredited investors that entered into Subscription Agreements with ArcLight.

“Sarbanes-Oxley Act” refers to the Sarbanes-Oxley Act of 2002.

iv

“SEC” refers to the U.S. Securities and Exchange Commission.

“Second A&R LLC Agreement” refers to the Second Amended and Restated Limited Liability Company Agreement of Opco.

“Securities Act” refers to the Securities Act of 1933, as amended.

“Sponsor” refers to ArcLight CTC Holdings II, L.P., a Delaware limited partnership.

“Subscription Agreements” refer to the subscription agreements (as amended from time to time) that ArcLight entered into in connection with the Business Combination Agreement, each dated as of December 2, 2021.

“Tax Receivable Agreement” refers to the Tax Receivable Agreement, dated July 21, 2022, by and among OPAL Fuels Inc, Opal Holdco LLC and the TRA Parties named therein as included in Exhibit 10.6 to the Current Report on Form 8-K, filed with the SEC on July 29, 2021, as the same may be amended, modified, supplemented or waived from time to time in accordance with its terms.

In addition, the following is a glossary of key industry terms used herein:

“Advanced Clean Trucks Regulation” refers to the rules adopted by the California Air Resources Board on June 25, 2020 requiring the sale of zero-emissionheavy-duty trucks.

“ADG” refers to anaerobic digester gas.

“Biogas Conversion Projects” refers to projects derived from the recovery and processing of biogas from landfills and other non-fossil fuel sources, such as livestock and dairy farms, for beneficial use as a replacement to fossil fuels.

“BOD” refers to biochemical oxygen demand.

“Btu” refers to British thermal units.

“CARB” refers to the California Air Resources Board.

“CO₂” refers to Carbon dioxide.

“CNG” refers to compressed natural gas.

“CI” refers to carbon intensity.

“D3” refers to cellulosic biofuel with a 60% GHG reduction requirement.

“EHS” refers to environment, health and safety.

“EISA” refers to Energy Independence and Security Act of 2007.

“EPA” refers to the U.S. Environmental Protection Agency.

“EPACT 2005” refers to the Energy Policy Act of 2005.

“Environmental Attributes” refer to federal, state and local government incentives in the United States, provided in the form of RINs, RECs, LCFS credits, rebates, tax credits and other incentives to end users, distributors, system integrators and manufacturers of renewable energy projects, that promote the use of renewable energy.

“FERC” refers to the U.S. Federal Energy Regulatory Commission.

“GHG” refers to greenhouse gases.

“ISOs” refers to Independent System Operators.

“LCFS” refers to Low Carbon Fuel Standard or similar types of federal and state programs.

“LFG” refers to landfill gas.

v

“MBR Authority” refers to (a) authorization by FERC pursuant to the Federal Power Act to sell electric energy, capacity and/or ancillary services at market-based rates, (b) acceptance by FERC of a tariff providing for such sales, and (c) granting by FERC of such regulatory waivers and blanket authorizations as are customarily granted by FERC to holders of market-based rate authority, including blanket authorization under section 204 of the Federal Power Act to issue securities and assume liabilities.

“Obligated Parties” means refiners or importers of gasoline or diesel fuel under the RFS program.

“QFs” refers to qualifying small power production facilities under the Federal Power Act and the Public Utility Regulatory Policies Act of 1978, as amended

“RECs” refers to Renewable Energy Credits.

“Renewable Power” refers to electricity generated from renewable sources.

“RFS” refers to the EPA’s Renewable Fuel Standard.

“RINs” refers to Renewable Identification Numbers.

“RNG” refers to renewable natural gas.

“RPS” refers to Renewable Portfolio Standards.

“RTOs” refers to Regional Transmission Organizations.

“RVOs” refers to renewable volume obligations.

“September 2020 Executive Order” refers to Executive Order N-79-20 issued by the Governor of the State of California in September 2020.

vi

CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING STATEMENTS

Certain statements made in this prospectus are “forward-looking statements.” Words such as “estimates,” “projected,” “expects,” “estimated,” “anticipates,” “forecasts,” “plans,” “intends,” “believes,” “seeks,” “may,” “will,” “would,” “future,” “propose,” “target,” “goal,” “objective,” “outlook” and variations of these words or similar expressions (or the negative versions of such words or expressions) are intended to identify forward-looking statements. These forward-looking statements are not guarantees of future performance, conditions or results, and involve a number of known and unknown risks, uncertainties, assumptions and other important factors, many of which are outside our control, that could cause actual results or outcomes to differ materially from those discussed in the forward-looking statements. Important factors, among others, that may affect actual results or outcomes include:

•the failure to realize the benefits of the Business Combination, which may be affected by, among other things, competition, our ability to grow and manage growth profitably, maintain relationships with customers and suppliers and retain key employees;

•our success in retaining or recruiting, our principal officers, key employees or directors;

•intense competition and competitive pressures from other companies in the industry in which we operate;

•increased costs of, or delays in obtaining, key components or labor for the construction and completion of landfill gas and livestock waste projects that generate electricity and renewable natural gas (“RNG”) and compressed natural gas (“CNG”) and hydrogen dispensing stations;

•factors relating to our business, operations and financial performance, including market conditions and global and economic factors beyond our control;

•macroeconomic conditions related to the global COVID-19 pandemic;

•the reduction or elimination of government economic incentives to the renewable energy market;

•factors associated with companies, such as us, that are engaged in the production and integration of RNG, including (i) anticipated trends, growth rates and challenges in those businesses and in the markets in which they operate (ii) contractual arrangements with, and the cooperation of, landfill and livestock biogas conversion project site owners and operators and operators, on which we operate our landfill gas and livestock waste projects that generate electricity and (iii) RNG prices for Environmental Attributes, low carbon fuel standard credits and other incentives;

•the ability to identify, acquire, develop and operate renewable projects and Fueling Stations;

•our ability to issue equity or equity-linked securities or obtain debt financing;

•the demand for renewable energy not being sustained;

•impacts of climate change, changing weather patterns and conditions and natural disasters;

•the effect of legal, tax and regulatory changes; and

•other factors detailed under the section entitled “Risk Factors.”

The forward-looking statements contained in this prospectus are based on current expectations and beliefs concerning future developments and their potential effects on us. There can be no assurance that future developments affecting us will be those that we have anticipated. These forward-looking statements involve a number of risks, uncertainties (some of which are beyond our control) or other assumptions that may cause actual results or performance to be materially different from those expressed or implied by these forward-looking statements. These risks and uncertainties include, but are not limited to, those factors described under the heading “Risk Factors” in this prospectus. Should one or more of these risks or uncertainties materialize, or should any of our assumptions prove incorrect, actual results may vary in material respects from those projected in these forward-looking statements. We undertake no obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise, except as may be required under applicable securities laws.

vii

SUMMARY

This summary highlights selected information contained elsewhere in this prospectus and does not contain all of the information you should consider when making your investment decision. Before investing in our securities, you should carefully read this entire prospectus, including our financial statements and the related notes included in this prospectus and the information set forth under the headings “Risk Factors” and “Management’s Discussion and Analysis of Financial Condition and Results of Operations.” See also the section entitled “Where You Can Find More Information.” The definition of some of the terms used in this prospectus are set forth under the section “Selected Definitions.”

Business Overview

We are a renewable energy company specializing in the capture and conversion of biogas for the (i) production of RNG for use as a vehicle fuel for heavy and medium-duty trucking fleets, (ii) generation of Renewable Power for sale to utilities, (iii) generation and sale of Environmental Attributes associated with RNG and Renewable Power, and (iv) sales of RNG as pipeline quality natural gas. We have been an established biogas-to-energy producer in the United States, having participated in the landfill gas to energy industry for over 20 years.

Biogas is comprised of non-fossil waste gas, with high concentrations of methane, which is the primary component of RNG and the source for combustion utilized by Renewable Power plants to generate Renewable Power. Biogas can not only be collected and processed to remove impurities for use as RNG (a form of high-Btu fuel) and injected into existing natural gas pipelines as it is fully interchangeable with fossil natural gas, but partially treated biogas can be used directly in heating applications (as a form of medium-Btu fuel) or in the production of Renewable Power. The biogas is generated by microbes as they break down organic matter in the absence of oxygen. Our principal sources of biogas are (i) landfill gas, which is produced by the decomposition of organic waste at landfills and (ii) dairy manure, which is processed through anaerobic digesters to produce the biogas.

We also design, develop, construct, operate and service Fueling Stations for trucking fleets across the country that use natural gas to displace diesel as their transportation fuel. We have participated in the alternative vehicle fuels industry for approximately 12 years and have established an expanding network of Fueling Stations for dispensing RNG. In addition, we have recently begun implementing design, development, and construction services for hydrogen fueling stations, and we are pursuing opportunities to diversify its sources of biogas to other waste streams.

Capture and Conversion Business

We typically secure our Biogas Conversion Projects through a combination of long-term gas rights, manure supply agreements, and property lease agreements with biogas site hosts. Our Biogas Conversion Projects provide our landfill and dairy farm partners with a variety of benefits, including (i) a means to monetize biogas from their sites, (ii) regulatory compliance for landfills, (iii) a source of environmentally beneficial waste management practices for dairy farms and (iv) a valuable revenue stream. Once we have negotiated gas rights or manure supply agreements, we then design, develop, build, own and operate facilities that convert the biogas into RNG or uses the processed biogas to produce Renewable Power. We sell the RNG produced by the Biogas Conversion Projects through RNG marketing and dispensing agreements and generate associated Environmental Attributes. These Environmental Attributes are then sold to obligated parties as defined under the RFS promulgated by the U.S. federal government and Low Carbon Fuel Standard Programs established by several states. We also sell Renewable Power to public utilities through long-term power purchase agreements.

Dispensing and Monetization Business

We are a leading provider of RNG marketing and dispensing in the alternative vehicle fuels market for heavy and medium-duty trucking fleets throughout the United States. In this sector, we focus on dispensing RNG through Fueling Stations that serve fleets that use natural gas instead of diesel fuel. These Fueling Stations and dispensing services are key for our business because Environmental Attributes are generated through dispensing RNG at these stations for use as vehicle fuel for transportation, and, once generated, the Environmental Attributes can then be monetized. During 2021, we dispensed 19.9 million GGEs of RNG to the transportation market, generating corresponding Environmental Attributes, utilizing our current network of 75 Fueling Stations in 18 states in the United States, including more than 20 stations in California.

1

In November 2021, we signed a purchase and sale agreement with NextEra providing for the exclusive purchase by NextEra of 90% of our Environmental Attributes (RINs and LCFS credits). Under the agreement, we will receive the net proceeds paid to NextEra by NextEra customers for the purchase of such Environmental Attributes (or in certain circumstances an index-based or pre-negotiated price) less a specified discount.

Hydrogen Fuel

In the coming years, we believe we will be able to provide hydrogen fuel to vehicle fleets by constructing and servicing hydrogen fueling stations as well as providing RNG for hydrogen production. As fleet operators deploy more hydrogen powered vehicles, we anticipate constructing and servicing stations that use hydrogen derived from RNG to deliver low carbon hydrogen fuel to customers. We are currently in the design and engineering phase of the first several of these hydrogen fueling stations.

Our Projects

As of July 31, 2022, we owned and operated 25 projects, six of which are RNG projects and 19 of which are Renewable Power Projects. As of that date, our RNG projects in operation had a design capacity of 2.8 million MMBtus per year and our Renewable Power Projects in operation had a nameplate capacity of 123.7 MW per hour. In addition to these projects in operation, we are actively pursuing expansion of our RNG-generating capacity and, accordingly, have a portfolio of RNG projects in construction or in development, with ten of our current Renewable Power Projects being considered candidates for conversion to RNG projects in the foreseeable future. See “Business — Our Projects” for further detail of our projects.

Our Strategy

We aim to (i) maintain and grow our position as a leading producer and dispenser of RNG in the United States and (ii) maintain and increase our position as a leading provider of RNG to the heavy and medium-duty commercial vehicle market in the U.S. We support these objectives through a multi-pronged strategy of:

•Promoting the reduction of methane and GHG emissions and expanding the use of renewable fuels to displace fossil-based fuels:    We share the renewable fuel industry’s commitment to providing sustainable renewable energy solutions and offering products with high economic and ecological value. By simultaneously replacing fossil-based fuels and reducing overall methane emissions, our projects have a positive environmental impact. We are committed to the sustainable development, deployment, and utilization of RNG to reduce the country’s dependence on fossil fuels. We strive to optimize the economics of capturing biogas from our host landfills and dairy farms for conversion to RNG by balancing the capital and operating costs with the current and future quality and quantity of biogas.

•Expanding our industry position as a full-service partner for development opportunities, including through strategic transactions:    Throughout our over 20 years of biogas conversion experience, we have developed the full range of biogas conversion project related capabilities from landfill gas collection system expertise, to engineering, construction, management and operations, through EHS oversight and Environmental Attributes management. Our full suite of capabilities allows us to serve as a multi-project partner, including through strategic transactions.

•Expanding our capabilities to new feedstock sources and technologies:    We believe we will be able to enter new markets for our products, such as providing fuel for the production of renewable energy sources. With our experience and industry expertise, we believe we are well-positioned to take advantage of opportunities to meet the clean energy needs of other industries looking to use renewable energy in their operations. We are actively reviewing opportunities beyond our core LFG and dairy RNG business. Specifically, we intend to diversify our project portfolio beyond landfill biogas through the expansion into additional methane producing assets.

•Empowering our customers to achieve their sustainability and carbon reduction objectives:    We are well positioned to empower our customers to achieve their sustainability and carbon reduction goals, including significantly reducing GHG emissions from their commercial transportation activities, at a cost to customers that is competitive to other fuels like diesel. We also assist our customers in their transition to cleaner transportation fuels by helping them obtain federal, state and local tax credits, grants and incentives, vehicle financing, and facilitating customer selection of vehicle specifications to meet their needs.

2

Recent Developments

On July 21, 2022, ArcLight completed the Business Combination as contemplated by the Business Combination Agreement. In connection with this, ArcLight was domesticated and continued as a Delaware corporation (the “Domestication”). Pursuant to the Domestication, (i) each outstanding Class B ordinary share, par value $0.0001 per share (the “Class B ordinary shares”), of ArcLight was automatically converted, on a one-for-one basis, into a Class A ordinary share, par value $0.0001 per share (the “Class A ordinary shares”), of ArcLight; (ii) each issued and outstanding Class A ordinary share (including Class A ordinary shares resulting from the conversion of Class B ordinary shares into Class A ordinary shares) was automatically converted, on a one-for-one basis, into a share of our Class A common stock; (iii) each issued and outstanding warrant to purchase Class A ordinary shares of ArcLight automatically converted into a warrant to acquire one share of our Class A common stock upon substantially the same economic terms; and (iv) each issued and outstanding unit of ArcLight that had not been previously separated into the underlying Class A ordinary shares of ArcLight and the underlying warrants of ArcLight upon the request of the holder thereof prior to the Domestication was cancelled and entitled the holder thereof to one share of our Class A common stock and one-fifth of one Warrant.

On July 21, 2022, as contemplated by the Business Combination Agreement:

•OPAL Fuels LLC and its members caused the existing limited liability company agreement to be amended and restated and in connection therewith, all of the common units of OPAL Fuels LLC issued and outstanding immediately prior to the Closing were re-classified into 144,399,037 Class B Units;

•We contributed to OPAL Fuels LLC $123,362,579 (representing (x) the amount of cash in the trust account established by ArcLight with the proceeds from the IPO as of immediately prior to the Closing, after giving effect to the exercise of redemption rights by any ArcLight shareholders and the set aside of funds in escrow to support a forward purchase agreement, plus (y) the aggregate cash proceeds received in respect of the PIPE Investment;

•We contributed to OPAL Fuels LLC, and it in turn distributed to pre-closing members of Opco, 144,399,037shares of our Class D common stock originally issued as consideration in connection with the Business Combination at a per share value of $10.00 per share;

•We issued directly to Ares, 3,059,533shares of our Class A common stock; and

•OPAL Fuels LLC issued to us 25,171,390 Class A Units of OPAL Fuels LLC.

In addition, pursuant to Subscription Agreements entered into with certain accredited and institutional investors in connection with the Business Combination, concurrently with the Closing of the Business Combination, we received $105,806,000 in proceeds from the PIPE Investors, in exchange for which we issued 10,580,600shares of our Class A common stock issued to the PIPE Investors. We received the remaining $5.0 million subscribed for pursuant to the PIPE Investment from one of the PIPE Investors subsequent to the Closing and issued 500,000shares of Class A common stock.

Holders of 27,364,124 Class A ordinary shares of ArcLight properly exercised their right to have their ordinary shares redeemed for a full pro rata portion of the trust account holding the proceeds from the IPO, calculated as of two business days prior to the Closing, which was approximately $10.00 per share, or $274,186,522 in the aggregate.

Pursuant to a forward share purchase agreement (the “Forward Purchase Agreement”) entered into between ArcLight and Meteora Capital Partners and its affiliates (collectively, “Meteora”), prior to the Closing of the Business Combination, Meteora purchased 2,000,000 Class A ordinary shares of ArcLight from shareholders which had previously tendered such shares for redemption but agreed to reverse their redemption and sell such shares to Meteora at the redemption price, resulting in Meteora holding a total of 2,000,000 Class A ordinary shares, which Meteora agreed not to redeem in connection with the Business Combination. Additionally, ArcLight placed $20,040,000 in escrow at the Closing of the Business Combination to secure its purchase obligations to Meteora under the Forward Purchase Agreement. Subsequent to the Closing, Meteora informed the Company that it has entered into sale transactions with respect to 340,342shares of Class A common stock. As a result, approximately $3,410,227 was released from escrow to the Company.

On July 22, 2022, our Class A common stock and Public Warrants commenced trading on The Nasdaq Capital Market under the symbols “OPAL” and “OPALW,” respectively, subject to ongoing review of our satisfaction of all listing criteria following the Business Combination.

3

Corporation Information

We are a Delaware corporation. Our principal executive offices are located at One North Lexington Avenue, Suite 1450, White Plains, New York 10601 and our telephone number is (914) 705-4000. Our website is www.opalfuels.com. Our website and the information contained on, or accessed through, its website are not part of this prospectus, and you should rely only on the information contained in this prospectus when making a decision as to whether to invest in our securities.

Risk Factor Summary

You should consider all of the information contained in this prospectus before investing in our securities which involves substantial risk. Our business is subject to numerous risks and uncertainties, including those highlighted in the section entitled “Risk Factors” beginning on page 12 of this prospectus, that represent challenges that we face in connection with the successful implementation of our strategy and the growth of our business. The occurrence of one or more of the events or circumstances described in the section entitled “Risk Factors,” alone or in combination with other events or circumstances, may have a material adverse effect on our business, cash flows, financial condition and results of operations. Important factors and risks that could cause actual results to differ materially from those in the forward-looking statements include, among others, the following:

Risks Related to Our Third Party Relationships and Government Regulation of Our Business

•We are dependent on contractual arrangements with, and the cooperation of, owners and operators of biogas project sites where our Biogas Conversion Projects are located for the underlying biogas rights granted to us in connection with our Biogas Conversion Projects and for access to and operations on the biogas project sites where we utilize those underlying biogas rights;

•For the US transportation fuel market, we are dependent on the production of vehicles and engines capable of running on natural gas and we have no control over these vehicle and engine manufacturers. We are also dependent on the willingness of owners of truck fleets to adopt natural gas powered vehicles and to contract with Opco for the provision of CNG to said fleets;

•Failure of third parties to manufacture quality products or provide reliable services in a timely manner could cause delays in developing, constructing and operating our Biogas Conversion Projects and Fueling Stations, which could damage our reputation, adversely affect our partner relationships or adversely affect our growth;

•Our operations are subject to numerous stringent EHS laws and regulations that may expose us to significant costs and liabilities. From time to time, we have been issued notices of violations from government entities that our operations have failed to comply with such laws and regulations, particularly in regards to the operation of our landfill gas electric generating facilities. Failure to comply with such laws and regulations may result in the assessment of sanctions, including administrative, civil or criminal penalties, the imposition of investigatory or remedial obligations, and the issuance of orders limiting or prohibiting some or all of our operations;

•Existing, and future changes to, federal, state and local regulations and policies, including permitting requirements applicable to us, and enactment of new regulations and policies, may present technical, regulatory and economic barriers to the generation, purchase and use of Renewable Power and RNG, and may adversely affect the market for the associated Environmental Attributes. A failure on our part to comply with any laws, regulations or rules applicable to us may adversely affect our business, investments and results of operations;

•The financial performance of our business depends upon tax and other government incentives for the generation of RNG and Renewable Power, any of which could change at any time and such changes may negatively impact our growth strategy;

•We are subject to risks associated with litigation or administrative proceedings that could materially impact our operations, including proceedings in the future related to projects we subsequently acquire.

4

Market Risks Related to Our Business

•The volatility in the price of oil, gasoline, diesel, natural gas, RNG or Environmental Attributes could adversely affect our business;

•We currently use, and may continue in the future to use, forward-sale and hedging arrangements, to mitigate certain risks, but the use of such arrangements could have a material adverse effect on our results of operations.

Additional Risk Factors Relating to Our Business in General

•Our contracts with government entities may be subject to unique risks, including possible termination of or reduction in the governmental programs under which we operate, instances in which our contract provisions allow the government entity to terminate, amend or change terms at their convenience, and competitive bidding processes for the award of contracts;

•In accordance with applicable FASB standards, management has concluded there are conditions or events, considered in the aggregate, that raise substantial doubt about the ability of Opco to continue as a going concern without the implementation of various mitigation steps identified by management of Opco;

•Liabilities and costs associated with hazardous materials and contamination and other environmental conditions may require us to conduct investigations or remediation at the properties underlying our projects, may adversely impact the value of our projects or the underlying properties, and may expose us to liabilities to third parties;

•We have a history of accounting losses and may incur additional losses in the future;

•We operate a capital-intensive business and are pursuing a business plan requiring significant access to capital. We may fail to get access to said capital in a timely manner or obtain capital at unfavorable terms.

•Some relationships with our counterparties and suppliers may experience disruptions in connection with the Business Combination, which may limit our business;

•Our failure to timely and effectively implement controls and procedures required by Section 404(a) of the Sarbanes-Oxley Act could have a material adverse effect on our business; and

•There can be no assurance that we will be able to comply with the continued listing standards of Nasdaq, including if we are required to repurchase any shares of our Class A common stock from Meteora pursuant to the Forward Purchase Agreement.

Implications of Being an Emerging Growth Company and a Smaller Reporting Company

We qualify as an “emerging growth company” as defined in the Jumpstart Our Business Startups Act of 2012 (the “JOBS Act”). For so long as we remain an emerging growth company, we are permitted, and currently intend, to rely on the following provisions of the JOBS Act that contain exceptions from disclosure and other requirements that otherwise are applicable to public companies and file periodic reports with the SEC. These provisions include, but are not limited to:

•being permitted to present only two years of audited financial statements and selected financial data and only two years of related “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in our periodic reports and registration statements, including this prospectus, subject to certain exceptions;

•not being required to comply with the auditor attestation requirements of Section 404 of the Sarbanes-Oxley Act;

•reduced disclosure obligations regarding executive compensation in our periodic reports, proxy statements, and registration statements, including in this prospectus;

5

•not being required to comply with any requirement that may be adopted by the Public Company Accounting Oversight Board (the “PCAOB”) regarding mandatory audit firm rotation or a supplement to the auditor’s report providing additional information about the audit and the financial statements; and

•exemptions from the requirements of holding a nonbinding advisory vote on executive compensation and stockholder approval of any golden parachute payments not previously approved.

We will cease to be an “emerging growth company” upon the earliest to occur of: (i) the last day of the fiscal year in which we have more than $1.07 billion in annual revenue; (ii) the date we qualify as a large accelerated filer, with at least $700.0 million of equity securities held by non-affiliates; (iii) the date on which we have, in any three-year period, issued more than $1.0 billion in non-convertible debt securities; and (iv) December 31, 2026 (the last day of the fiscal year following the fifth anniversary of ArcLight becoming a public company).

We have elected to take advantage of certain of the reduced disclosure obligations in this prospectus and may elect to take advantage of other reduced reporting requirements in our future filings with the SEC. As a result, the information that we provide to our stockholders may be different than what you might receive from other public reporting companies in which you hold equity interests.

We have elected to avail ourselves of the provision of the JOBS Act that permits emerging growth companies to take advantage of an extended transition period to comply with new or revised accounting standards applicable to public companies. As a result, we will not be subject to new or revised accounting standards at the same time as other public companies that are not emerging growth companies.

We are also a “smaller reporting company” as defined in the Exchange Act. We may continue to be a smaller reporting company even after we are no longer an emerging growth company. We may take advantage of certain of the scaled disclosures available to smaller reporting companies until the fiscal year following the determination that our voting and non-voting common stock held by non-affiliates is $250 million or more measured on the last business day of our second fiscal quarter, or our annual revenues are less than $100 million during the most recently completed fiscal year and our voting and non-voting common stock held by non-affiliates is $700 million or more measured on the last business day of our second fiscal quarter.

For additional information, see the section titled “Risk Factors — Risks Related to the Company — We are an “emerging growth company,” and our election to comply with the reduced disclosure requirements as a public company may make our common stock less attractive to investors.”

6

The Offering

Issuer	OPAL Fuels Inc.
Securities offered by the Company	Up to 15,446,494shares of Class A common stock, consisting of:
	•9,223,261shares of Class A common stock underlying the Private Placement Warrants that were originally purchased at a purchase price of $1.00 per warrant; and
	•6,223,233shares of Class A common stock underlying the Public Warrants that were originally issued as part of the units sold by Arclight at a purchase price of $10.00 per unit in its initial public offering.
Securities offered by the Selling Holders	Up to 175,541,507shares of Class A common stock, consisting of:
	•10,838,609shares of Class A common stock issued under the Business Combination Agreement to Ares, Sponsor and certain former directors of ArcLight originally acquired by such parties for an effective purchase price of approximately $0.003 per share;
	•144,399,037shares of Class A common stock issuable upon the conversion of Class C common stock issuable to the Opco Common Equityholders upon the exchange of Opco Common Units and the cancellation of an equal number of shares of Class D common stock originally issued as consideration in connection with the Business Combination at a per share value of $10.00 per share;
	•9,223,261shares of Class A common stock underlying the Private Placement Warrants that were originally purchased at a purchase price of $1.00 per warrant; and
	•11,080,600shares of Class A common stock issued to the PIPE Investors at a purchase price of $10.00 per share.
Use of proceeds	We will not receive any of the proceeds from the sale of the shares of Class A common stock by the Selling Holders. We could receive up to an aggregate of $177,634,681 if all of the Warrants are exercised for cash. However, we will only receive such proceeds if and when the holders of the Warrants choose to exercise them. The exercise of the Warrants, and any proceeds we may receive from their exercise, are highly dependent on the price of our Class A common stock and the spread between the exercise price of the Warrants and the price of our Class A common stock at the time of exercise. We have 15,446,494 outstanding Warrants to purchase 15,446,494shares of our Class A common stock, exercisable at an exercise price of $11.50 per share. If the market price of our Class A common stock is less than the exercise price of a holder’s Warrants, it is unlikely that holders will choose to exercise. As of October 13, 2022, the closing price of our Class A common stock was $6.23 per share. There can be no assurance that the Warrants will be in the money prior to their expiration. In addition, the Sponsor (as defined herein), or its permitted transferees, have the option to exercise the Private Placement Warrants on a cashless basis. As such, it is possible that we may never generate any cash proceeds from the exercise of our Warrants. We will bear all costs, expenses and fees in connection with the registration of the securities. The Selling Holders will bear all commissions and discounts, if any, attributable to their respective sales of the securities.

7

Market for our shares of common stock and warrants	Our Class A common stock and public warrants are listed for trading on Nasdaq under the symbols “OPAL” and “OPALW,” respectively.
Risk factors	Any investment in the securities offered hereby is speculative and involves a high degree of risk. You should carefully consider the information set forth under “Risk Factors” and elsewhere in this prospectus.

8

SELECTED HISTORICAL CONSOLIDATED
FINANCIAL INFORMATION

The selected consolidated historical statements of operations and of cash flows data of Opco for the years ended December 31, 2021, 2020 and 2019 and the historical consolidated balance sheet data as of December 31, 2021 and 2020 are derived from Opco’s audited consolidated financial statements included elsewhere in this prospectus. The selected condensed consolidated historical statements of operations and of cash flows data of Opco for the six months ended June 30, 2022 and 2021 and the condensed consolidated historical balance sheet data as of June 30, 2022 are derived from Opco’s unaudited interim condensed consolidated financial statements included elsewhere in this prospectus. In Opco’s management’s opinion, the consolidated historical financial statements include all adjustments necessary to state fairly Opco’s financial position, results of operations and cash flows as of and for the periods presented herein.

Opco’s historical results are not necessarily indicative of the results that may be expected in the future and Opco’s results for the six months ended June 30, 2022 are not necessarily indicative of the results that may be expected for the full year ending December 31, 2022 or any other period. You should read the selected consolidated historical financial data together with the section titled “Management’s Discussion and Analysis of Financial Condition and Results of Operations” and Opco’s audited consolidated and unaudited condensed consolidated financial statements and related notes included elsewhere in this prospectus.

(In thousands of dollars except per unit data)	For the six months ended						Fiscal Years Ended
	June 30, 2022			June 30, 2021			December 31, 2021			December 31, 2020			December 31, 2019
										(Restated)(1)			(Restated)(1)
Consolidated Statements of Operations Data:
Revenues	$	102,264		$	57,784		$	166,124		$	117,706		$	119,702
Less:
Cost of sales		75,589			43,285			115,065			90,168			90,972
Selling, general and administrative		18,810			11,185			29,380			20,474			17,795
Depreciation, amortization, and accretion		6,558			4,059			10,653			8,338			8,031
Impairment of assets		—			—			—			17,689			—
Gain on termination of PPA		—			—			—			(1,292	)		—
Loss on sale/disposal of assets		—			—			—			165			(2,051	)
Interest and financing expense, net		(6,408	)		(3,305	)		(7,467	)		(6,655	)		(8,026	)
Realized and unrealized loss (gain) on interest rate swaps, net		328			17			99			(2,197	)		(1,691	)
Gain on acquisition of equity method investment		—			19,818			19,818			—			—
Gain on deconsolidation of VIEs		—			—			15,025			—			—
Gain on PPP loan forgiveness		—			—			—			1,792			—
(Loss) income from equity method investments		(36	)		2,392			2,268			(475	)		(487	)
Net (loss) income		(4,809	)		18,177			40,769			(25,371	)		(5,249	)
Paid-in-kind preferred dividends		2,435			—			210			—			—
Net loss attributable to non-controlling interests		(499	)		(198	)		(804	)		(13	)		—
Net (loss) income attributable to OPAL Fuels LLC	$	(6,745	)	$	18,375		$	41,363		$	(25,358	)	$	(5,249	)
Weighted average units outstanding:
Basic(2)		1,000			986			987			986			986
Diluted(2)		1,000			986			987			986			986
Per unit amounts:
Basic	$	(6,745	)	$	18,636	)	$	41,908		$	(25,718	)	$	(5,324	)
Diluted	$	(6,745	)	$	18,636	)	$	41,908		$	(25,718	)	$	(5,324	)

9

(In thousands of dollars except per unit data)	For the six months ended						Fiscal Years Ended
	June 30, 2022			June 30, 2021			December 31, 2021			December 31, 2020			December 31, 2019
										(Restated)(1)			(Restated)(1)
Consolidated Statement of Cash Flows Data:
Net cash (used in) provided by operating activities	$	(9,438	)	$	16,808		$	18,856		$	2,287		$	4,338
Net cash used in investing activities		(54,298	)		(28,752	)		(117,204	)		(22,179	)		(29,848	)
Net cash provided by financing activities		121,961			28,278			125,014			21,453			24,653
Net increase (decrease) in cash, cash equivalents and restricted cash	$	58,225		$	16,334		$	26,666		$	1,561		$	(857	)

____________

(1)As described in Note 2, Restatement of Financials Statements to Opco’s audited consolidated financial statements, we have restated the consolidated financial statements for the years ended December 31, 2020 and 2019.

(2)As described in Note 1, Description of Business to Opco’s audited consolidated financial statements, the Company amended its limited liability company agreement on November 29, 2021 to convert its outstanding membership interests into 986 common units. The earnings per unit have been presented retrospectively for all periods presented.

(In thousands of dollars)	As of June 30,		As of December 31,
	2022		2021		2020
					(Restated)(1)
Consolidated Balance Sheets Data:
Cash and cash equivalents	$	97,091	$	39,314	$	12,823
Property, plant and equipment, net		229,411		169,770		79,492
Total assets	$	512,242	$	380,844	$	169,458
Total Debt – current and non-current	$	241,122	$	229,103	$	100,780
Total liabilities		305,323		285,887		138,999
Redeemable preferred units		132,645		30,210		—
Total members’ equity		74,274		64,747		30,459
Total liabilities, redeemable preferred units and members’ equity	$	512,242	$	380,844	$	169,458

____________

(1)As described in Note 2, Restatement of Financials Statements to Opco’s audited consolidated financial statements, we have restated the consolidated financial statements for the year ended December 31, 2020.

10

MARKET PRICE, TICKER SYMBOL, AND DIVIDEND INFORMATION

OPAL’s Class A common stock and public warrants are listed for trading on Nasdaq under the symbols “OPAL” and “OPALW,” respectively.

The closing price of the Class A common stock and the warrants to purchase Class A common stock on October 13, 2022 was $6.23, and $1.09, respectively. Holders of Class A common stock and warrants should obtain current market quotations for their securities.

OPAL has not paid any cash dividends on shares of its Class A common stock or Class C common stock to date and has no current plans to pay dividends on its Class A common stock or Class C common stock in the foreseeable future. Holders of OPAL’s Class B common stock and Class D common stock do not have any right to receive dividends. The payment of cash dividends in the future will be dependent upon OPAL’s revenues and earnings, if any, capital requirements and general financial condition. The payment of any dividends will be within the discretion of our board.

11

RISK FACTORS

In addition to the other information contained in this prospectus, the following risks have the potential to impact our business and operations, as well as the market for our securities, including the Class A common stock offered hereby. These risk factors are not exhaustive and all investors are encouraged to perform their own investigation with respect our business, financial condition and prospects.

Risks Related to Our Business

Risks Related to Our Third Party Relationships and Government Regulation of Our Business

We are dependent on contractual arrangements with, and the cooperation of, owners and operators of biogas project sites where our Biogas Conversion Projects are located for the underlying biogas rights granted to us in connection with our Biogas Conversion Projects and for access to and operations on the biogas project sites where we utilize those underlying biogas rights.

We do not own any of the landfill or livestock waste sites, which we sometimes refer to in this prospectus as “biogas project sites,” from which our Biogas Conversion Projects collect biogas or on which we operate and manage our Biogas Conversion Projects, and therefore we depend on contractual relationships with, and the cooperation of, the biogas conversion project site owners and operators for our operations. The invalidity of, or any default or termination under, any of our gas rights agreements, leases, easements, licenses and rights-of-way may interfere with our rights to the underlying biogas and our ability to use and operate all or a portion of certain of our Biogas Conversion Projects facilities, which may have an adverse impact on our business, financial condition and results of operations. We obtain biogas rights to utilize the biogas and the biogas project sites on which our projects operate under contractual arrangements, with the associated biogas rights generally being for fixed terms of 20 years (or more) and certain additional renewal options. The gas rights associated with our 30 projects in operation or under construction, 3 of which include Renewable Power projects that are in construction to be converted to RNG, are due to expire at varying points over the next 25 years. See “Business — Our Projects.” In addition, the biogas rights are typically specific to the right to produce electricity generated from renewable sources (“Renewable Power”) or RNG; and accordingly, when we pursue conversion of a project from the production of Renewable Power to the production of RNG, which has been part of our strategy over recent periods, we must secure the associated biogas rights for the production of RNG. While we have generally been successful in renewing biogas rights and in securing the additional rights necessary in connection with conversion from production of Renewable Power to RNG on specific projects, we cannot guarantee that this success will continue in the future on commercial terms that are attractive to us or at all, and any failure to do so, or any other disruption in the relationship with any of the biogas conversion project site owners and operators from whose biogas project sites our Biogas Projects obtain biogas or for whom we operate biogas facilities, may have a material adverse effect on our business operations, financial condition and operational results.

In addition, the ownership interests in the land subject to these licenses, easements, leases and rights-of-way may be subject to mortgages securing loans or other liens (such as tax liens) and other easements, lease rights and rights-of-way of third parties (such as leases of mineral rights). As a result, certain of our Biogas Conversion Projects’ rights under these licenses, easements, leases or rights-of-way may be subject, and subordinate, to the rights of those third parties in certain instances. We may not be able to protect our operating projects against all risks of loss of our rights to use the land on which our Biogas Conversion Projects are located, and any such loss or curtailment of our rights to use the land on which our projects are located and any increase in rent due on such lands could adversely affect our business, financial condition and results of operations.

The owners and operators of biogas project sites generally make no warranties to us as to the quality or quantity of gas produced.

The biogas conversion project site owners and operators generally do not make any representation or warranty to us as to the quality or quantity of biogas produced at their sites. Accordingly, we may be affected by operational issues encountered by biogas conversion project site owners and operators in operating their facilities, such as, among other things: (i) their ability to perform in accordance with their commitments to third parties (other than us) under agreements and permits; (ii) transportation of source materials, (iii) herd health and labor issues at the dairy farms generating the manure to be processed at our digester facilities; (iv) gas collection issues at landfill projects such as

12

broken pipes, ground water accumulation, inadequate landcover and labor issues, and (v) the particular character and mix of trash received, at the biogas conversion project site facilities. We cannot guarantee that our production will be free from operational risks, nor can we guarantee the production of a sufficient quantity and quality of biogas from the owners and operators of biogas conversion project sites. However, our facilities are engineered and designed to process varying levels of biogas quantities and varying levels of potential biogas impurities.

We from time to time face disputes or disagreements with owners and operators of biogas project sites which could materially impact our ability to continue to develop and/or operate an existing Biogas Conversion Project on its current basis, or at all, and could materially delay or eliminate our ability to identify and successfully secure the rights to construct and operate other future Biogas Conversion Projects.

The success of our business depends, in part, on maintaining good relationships with biogas conversion project site owners and operators. As a result, our business may be adversely affected if we are unable to maintain these relationships.

Our economic interests in biogas conversion project sites are not always aligned with the economic interests of the site owners and operators. We may disagree with owners and operators about a number of concerns, including, without limitation, the operations of the biogas project sites, easement and access rights, the renewal of gas and manure rights on favorable terms, and temporary shutdowns for routine maintenance or equipment upgrades. Biogas conversion project site owners and operators may make unilateral decisions beneficial to them to address business concerns. They may or may not consult with us, including in circumstances where they have a contractual obligation to do so, and unilateral decisions made by the biogas conversion project site owners and operators regarding the operations or management of their business could impact our ability to produce RNG or Renewable Power, and generate the associated Environmental Attributes. If we have a favorable relationship with site owners and operators, we may be able to mitigate certain risks if given the opportunity to provide input into the owners’ and operators’ decision-making process.

In addition, the financial condition of the biogas conversion project sites may be affected in large part by conditions and events that are beyond our control. Significant deteriorations in the financial condition of any biogas conversion project waste site could cause the biogas conversion project site owners and operators to unilaterally decide to shut down or reduce their landfill or livestock waste operations. Any such closure or reduction of operations at a waste site could impact our ability to produce RNG or Renewable Power, and generate the associated Environmental Attributes, and we may not have an opportunity to propose a solution to protect our infrastructure in any existing Biogas Conversion Project.

If we are unable to maintain good relationships with these site owners and operators, or if they take any actions that disrupt or halt production of RNG or Renewable Power, our business, growth strategy, financial condition and results of operations could be materially and adversely affected.

For the US transportation fuel market, we are dependent on the production of vehicles and engines capable of running on natural gas and we have no control over these vehicle and engine manufacturers. We are also dependent on the willingness of owners of truck fleets to adopt natural gas powered vehicles and to contract with us for the provision of CNG to said fleets.

Vehicle and engine manufacturers control the development, production, quality assurance, cost and sales and marketing of their products, all of which shape the performance, availability and reputation of such vehicles in the marketplace. We are dependent on these vehicle and engine manufacturers to succeed in our target RNG fuel dispensing markets, and we have no influence or control over their activities.

These vehicle and engine manufacturers may decide not to expand or maintain, or may decide to discontinue or curtail, their product lines for a variety of reasons, including, without limitation, as a result of the adoption of governmental policies or programs such as the rules adopted by the California Air Resources Board on June 25, 2020 requiring the sale of zero-emission heavy-duty trucks (the “Advanced Clean Trucks Regulation”) and Executive Order N-79-20 issued by the Governor of the State of California in September 2020 (the “September 2020 Executive Order”). The supply of engines or vehicle product lines by these vehicle and engine manufacturers may also be disrupted due to delays, restrictions or other business impacts related to the COVID-19 pandemic and supply chain

13

disruptions or crises. The limited production of engines and vehicles that run on natural gas increases their cost and limits availability, which restricts large-scale adoption, and may reduce resale value. These factors may also contribute to operator reluctance to convert their vehicles to be compatible with natural gas fuel.

Failure of third parties to manufacture quality products or provide reliable services in a timely manner could cause delays in developing, constructing, bringing online and operating our Biogas Conversion Projects and Fueling Stations, which could damage our reputation, adversely affect our partner relationships or adversely affect our growth.

Our success depends on our ability to design, develop, construct, maintain and operate Biogas Conversion Projects and Fueling Stations in a timely manner, which depends in part on the ability of third parties to provide us with timely and reliable products and services. In developing and operating our Biogas Conversion Projects and Fueling Stations, we rely on products meeting our design specifications and components manufactured and supplied by third parties, and on services performed by our subcontractors. We also rely on subcontractors to perform some of the construction and installation work related to our Biogas Conversion Projects and Fueling Stations, and we sometimes need to engage subcontractors with whom we have no prior experience in connection with these matters.

If our subcontractors are unable to provide services that meet or exceed our counterparties’ expectations or satisfy our contractual commitments, our reputation, business and operating results could be harmed. In addition, if we are unable to avail ourselves of warranties and other contractual protections with our suppliers and service providers, we may incur liability to our counterparties or additional costs related to the affected products and services, which could adversely affect our business, financial condition and results of operations. Moreover, any delays, malfunctions, inefficiencies or interruptions in these products or services could adversely affect our ability to timely bring a project online, the quality and performance of our Biogas Conversion Projects and Fueling Stations, and may require considerable expense to find replacement products and to maintain and repair these facilities. These circumstances could cause us to experience interruption in (i) our production and distribution of RNG and Renewable Power, (ii) generation of related Environmental Attributes, (iii) meeting our obligations to dispense RNG at Fueling Stations, and (iv) maintaining current relationships and attracting new relationships, in each case, potentially harming our brand, reputation and growth prospects.

Our operations are subject to numerous stringent EHS laws and regulations that may expose us to significant costs and liabilities. From time to time, we have been issued notices of violations from government entities that our operations have failed to comply with such laws and regulations, particularly in regards to the operation of our landfill gas electric generating facilities. Failure to comply with such laws and regulations may result in the assessment of sanctions, including administrative, civil or criminal penalties, the imposition of investigatory or remedial obligations, and the issuance of orders limiting or prohibiting some or all of our operations.

Our operations are subject to stringent and complex federal, state and local EHS laws and regulations, including those relating to (i) the release, emission or discharge of materials into the air, water and ground, (ii) the generation, storage, handling, use, transportation and disposal of hazardous materials and wastes, and (iii) the health and safety of our employees and other persons.

These laws and regulations impose numerous obligations applicable to our operations, including (i) the acquisition of permits before construction and operation of our Biogas Conversion Projects and Fueling Stations; (ii) the restriction of types, quantities and concentration of materials that can be released into the environment; (iii) the limitation or prohibition of our activities on certain lands lying within wilderness, wetlands and other protected areas; (iv) the application of specific health and safety criteria addressing worker protection; and (v) the imposition of substantial liabilities for pollution resulting from the operation of our Biogas Conversion Projects and Fueling Stations. In addition, construction and operating permits issued pursuant to environmental laws are necessary to operate our business. Such permits are obtained through applications that require considerable technical documentation and analysis, and sometimes require long time periods to obtain or review. Delays in obtaining or renewing such permits, or denial of such permits and renewals, are possible, and would have a negative effect on our financial performance and prospects for growth. These laws, regulations and permitting requirements can necessitate expensive pollution control equipment or operational changes to limit actual or potential impacts to the environment.

14

Numerous government entities have the power to enforce difficult and costly compliance measures or corrective actions pursuant to these laws and regulations and the permits issued under them. We may be required to make significant capital and operating expenditures on an ongoing basis, or to perform remedial or other corrective actions in connection with our Biogas Conversion Projects and Fueling Stations, to comply with the requirements of these environmental laws and regulations or the terms and conditions of our permits. Failure to comply with these laws and regulations or the terms or conditions of our permits may result in the assessment of sanctions, including administrative, civil or criminal penalties, the imposition of investigatory or remedial obligations, and the issuance of orders limiting or prohibiting some or all of our operations.In addition, we may experience delays in obtaining or be unable to obtain required environmental regulatory permits, consents, waivers or approvals, which may delay or interrupt our operations and limit our growth and revenue.

For example, our Arbor Hills landfill gas facility in Northville, MI has entered into a Consent Decree, which was fully executed and submitted to the United States District Court for the Eastern District of Michigan on September 9, 2021, with the US Department of Justice, the EPA, Michigan Attorney General, Michigan Department of Environment, Great Lakes, and Energy and Michigan Department of Environmental Quality to resolve notices of violation relating to sulfur oxide emissions exceedances, failure to timely perform source testing and improper use of diesel fuel as an alternative to landfill gas for start-up combustion. The Company has agreed to pay total penalties of $750,000 and is required to install pollution control equipment to reduce emissions from the facility. See “Business — Legal Proceedings — Arbor Hills Matter.” In addition, on July 30, 2021, Richmond Energy, a Company subsidiary, entered into a Consent Order with the Virginia Department of Environmental Quality (“VDEQ”) related to an October 31, 2019 notice of violation for a failed source test conducted by VDEQ, which identified exceedances in total sulfur, volatile organic compounds and sulfur dioxide emissions from the Old Dominion landfill gas facility in Henrico, VA. Pursuant to the Consent Order, Richmond Energy paid a $99,000 penalty and is required to modify the facilities permit to account for these emissions. The facility has been shut down since April 3, 2020 while the Richmond Energy modifies the facility’s permit, which will require the installation of a chiller treatment system at an estimated cost of $1.0 million. The facility is expected to be back online within the next six to twelve months.

Our operations inherently risk incurring significant environmental costs and liabilities due to the need to manage waste and emissions from our Biogas Conversion Projects and Fueling Stations. Spills or other releases of regulated substances, including spills and releases that may occur in the future, could expose us to material losses, expenditures and liabilities under applicable environmental laws, rules and regulations. Under certain of such laws, rules and regulations, we could be held strictly liable for the removal or remediation of previously released materials or property contamination, regardless of whether we were responsible for the release or contamination and even if our operations met previous standards in the industry at the time they were conducted. In connection with certain acquisitions of Biogas Conversion Projects and Fueling Stations, we could acquire, or be required to provide indemnification against, environmental liabilities that could expose us to material losses. In addition, claims for damages to persons or property, including natural resources, may result from the EHS impacts of our operations. Our insurance may not cover all environmental risks and costs or may not provide sufficient coverage if an environmental claim is made against us.

Environmental laws, rules and regulations have changed rapidly in recent years and generally have become more stringent over time, and we expect this trend to continue. The most material of these changes relate to the control of air emissions from the combustion equipment and turbine engines we use to generate Renewable Power from landfill biogas. Such equipment, including internal combustion engines, are subject to stringent federal and state permitting and air emissions requirements. California has taken an aggressive approach to setting standards for engine emissions, and standards already in place have caused us to not be able to operate some of our electric generating equipment in areas of that state. If other states were to follow California’s lead, we could face challenges in maintaining our electric generating operations and possibly, other operations in such jurisdictions.

Continued governmental and public emphasis on environmental issues can be expected to result in increased future investments for environmental control compliance at our facilities. Present and future environmental laws, rules and regulations, and interpretations of such laws, rules and regulations, applicable to our operations, more vigorous enforcement policies and discovery of currently unknown conditions may require substantial costs or expenditures that could have a material adverse effect on our business, results of operations and financial condition. In January 2021, the current US presidential administration signed multiple executive orders related to the climate and environment. These executive orders (i) direct federal agencies to review and reverse more than one hundred actions taken by the previous US presidential administration on or relating to the environment, (ii) instruct the Director of National Intelligence

15

to prepare a national intelligence estimate on the security implications of the climate crisis and direct all agencies to develop strategies for integrating climate considerations into their international work, (iii) establish the National Climate Task Force, which assembles leaders from across twenty one federal agencies and departments, (iv) commit to environmental justice and new, clean infrastructure projects, (v) commence development of emissions reduction targets and (vi) establish the special presidential envoy for climate on the National Security Council. At this time, we cannot predict the outcome of any of these executive orders on our operations.

Existing, and future changes to, federal, state and local regulations and policies, including permitting requirements applicable to us, and enactment of new regulations and policies, may present technical, regulatory and economic barriers to the generation, purchase and use of Renewable Power and RNG, and may adversely affect the market for the associated Environmental Attributes. A failure on our part to comply with any laws, regulations or rules, applicable to us may adversely affect our business, investments and results of operations.

The markets for Renewable Power, RNG and the associated Environmental Attributes are influenced by US federal and state governmental regulations and policies concerning such resources. These regulations and policies are frequently modified, which could result in a significant future reduction in the potential demand for Renewable Power, RNG and the associated Environmental Attributes. Any new governmental regulations applicable to our Biogas Conversion Projects or markets for Renewable Power, RNG or the associated Environmental Attributes may result in significant additional expenses or related development costs and, as a result, could cause a significant reduction in demand by our current and future counterparties. Failure to comply with such requirements could result in (i) the disconnection and/or shutdown of the non-complying facility, (ii) our inability to sell Renewable Power or RNG from the non-complying facility, (iii) penalties and defaults arising from contracts that we have that contemplate production from the non-complying facility, (iv) the imposition of liens, fines, refunds and interest, and/or civil or criminal liability, and (vi) delay or prevent new Biogas Conversion Projects and Fueling Stations from being developed.

The U.S. Environmental Protection Agency (“EPA”) annually sets proposed and actual renewable volume obligations (“RVOs”) for the Renewable Identification Numbers (“RIN”) market in accordance with the mandates established by the Energy Independence and Security Act of 2007 (the “EISA”). The EPA’s issuance of timely and sufficient annual RVOs to accommodate the RNG industry’s growing production levels may be needed to stabilize the RIN market. There can be no assurance that the EPA will timely set annual RVOs or that the RVOs will continue to increase or be sufficient to satisfy the growing supply of RNG which may be targeted for the US transportation fuel market. The EPA may set RVOs inaccurately or inconsistently, and the manner in which the EPA sets RVOs may change under legislative or regulatory revisions. The current authorization for the EPA’s issuance of RVOs will expire beginning in 2023, and the EPA may issue RVOs under a modified system that has yet to be developed, which creates additional uncertainty as to RIN pricing. Uncertainty as to how the Renewable Fuel Standard (“RFS”) program will continue to be administered and supported by the EPA under the current US presidential administration can create price volatility in the RIN market. Given this regulatory uncertainty, we cannot assure that (i) we will be able to monetize RINs at the same price levels as we have in the past, (ii) production shortfalls will not impact our ability to monetize RINs at favorable current pricing, and (iii) the rising price environment for RINs will continue.

On the state level, the economics of RNG are enhanced by low-carbon fuel initiatives, particularly a well-established Low Carbon Fuel Standard (“LCFS”) program in California and similar developing programs in Oregon and Washington (with several other states also actively considering similar initiatives). In California’s case, in 2009, the California Air Resource Board (“CARB”) adopted LCFS regulations aimed at reducing the Carbon Intensity (“CI”) of transportation fuel sold and purchased in the state. A CI score is calculated as grams of CO₂ equivalent per megajoule of energy by the fuel. Under the California and California-type LCFS programs, the CI score is dependent upon a full lifecycle analysis that evaluates the greenhouse gases (“GHG”) emissions associated with producing, transporting, and consuming the fuel. LCFS credits can be generated in three ways: (i) fuel pathway crediting that provides low carbon fuels used in California transportation, (ii) project-based crediting that reduces GHG emissions in the petroleum supply chain, and (iii) zero emission vehicle crediting that supports the buildout of infrastructure. CARB awards these credits to RNG projects based on such project’s CI score relative to the targeted CI score for both gasoline and diesel fuels. The number of monetizable LCFS credits per unit of fuel increases with a lower CI score. We cannot assure that we will be able to maintain or reduce our CI score to monetize LCFS credits generated from our Biogas Conversion Projects. Moreover, the inability to sell LCFS credits could adversely affect our business.

16

Our ability to generate revenue from sales of RINs and LCFS credits depends on our strict compliance with such federal and state programs, which are complex and can involve a significant degree of judgment. If the agencies that administer and enforce these programs disagree with our judgments, otherwise determine that we are not in compliance, conduct reviews of our activities or make changes to the programs, then our ability to generate or sell these credits could be temporarily restricted pending completion of reviews or as a penalty, permanently limited or lost entirely, and we could also be subject to fines or other sanctions. Moreover, the inability to sell RINs and LCFS credits in general, or at unattractive prices, could adversely affect our business.

Additionally, our business is influenced by laws, rules and regulations that require reductions in carbon emissions and/or the use of renewable fuels, such as the programs under which we generate Environmental Credits. These programs and regulations, which have the effect of encouraging the use of RNG as a vehicle fuel, could expire or be repealed or amended for a variety of reasons. For example, parties with an interest in gasoline and diesel, electric or other alternative vehicles or vehicle fuels, including lawmakers, regulators, policymakers, environmental or advocacy organizations, producers of alternative vehicles or vehicle fuels or other powerful groups, may invest significant time and money in efforts to delay, repeal or otherwise negatively influence programs and regulations that promote RNG. Many of these parties have substantial resources and influence. Further, changes in federal, state or local political, social or economic conditions, including a lack of legislative focus on these programs and regulations, could result in their modification, delayed adoption or repeal. Any failure to adopt, delay in implementing, expiration, repeal or modification of these programs and regulations, or the adoption of any programs or regulations that encourage the use of other alternative fuels or alternative vehicles over RNG, could reduce the market demand for RNG as a vehicle fuel and harm our operating results, liquidity, and financial condition.

For instance, in certain states, including California, lawmakers and regulators have implemented various measures designed to increase the use of electric, hydrogen and other zero-emission vehicles, including establishing firm goals for the number of these vehicles operating on state roads by specified dates and enacting various laws and other programs in support of these goals. Although the influence and applicability of these or similar measures on our business remains uncertain, a focus on “zero tailpipe emissions” vehicles over vehicles such as those operating on RNG that have an overall net carbon negative emissions profile, but some tailpipe emissions, could adversely affect the market for our fuels.

All of our current electric generating facilities are qualifying small power production facilities (“QFs”)under the Federal Power Act and the Public Utility Regulatory Policies Act of 1978, as amended. We are permitted to make wholesale sales (that is, sales for resale) of Renewable Electricity, capacity, and ancillary services from our QFs with a net generating capacity that does not exceed 20 megawatts or that is an “eligible” facility as defined by section 3(17)(E) of the Federal Power Act without obtaining (a) authorization by FERC pursuant to the Federal Power Act to sell electric energy, capacity and/or ancillary services at market-based rates, (b) acceptance by FERC of a tariff providing for such sales, and (c) granting by FERC of such regulatory waivers and blanket authorizations as are customarily granted by FERC to holders of market-based rate authority, including blanket authorization under section 204 of the Federal Power Act to issue securities and assume liabilities (“MBR Authority”) or any other approval from the U.S. Federal Energy Regulatory Commission (“FERC”). A QF typically may not use any fuel other than a FERC-approved alternative fuel, but for limited use of commercial-grade fuel for certain specified start-up, emergency and reliability purposes. We are required to document the QF status of each of our facilities in applications or self-certifications filed with FERC, which typically requires disclosure of upstream facility ownership, fuel and size characteristics, power sales, interconnection matters, and related technical disclosures Congress could amend the FPA and eliminate QF status, in which case we would likely have to obtain MBR Authority and sell competitively in the market. If this were to happen, in all likelihood our QFs would not be competitive in the market place.

We currently do not intend to develop, construct or operate electric generating facilities that would require us to apply for and receive MBR Authority from FERC. Nevertheless, were we to do so, eligibility for MBR Authority is predicated on a variety of factors, primarily including the overall market power that the power seller — together with all of its FERC-defined “affiliates” — has in the relevant market. FERC defines affiliates as entities with a common parent that own, directly or indirectly, 10% or more of the voting securities in the two entities. Accordingly, our eligibility and the eligibility of our affiliates to obtain and maintain MBR Authority for additional facilities, were we or such affiliate required to obtain such authority, would require an evaluation of the energy assets owned directly or indirectly by us and each of our affiliates, satisfying market-power limitations established by FERC. If our affiliates

17

invest heavily in generating or other electric facilities in a particular geographic market, their market presence could make it difficult for us or our affiliates to obtain and maintain such MBR Authority, or to secure FERC authorization to acquire additional generating facilities, in that market.

Our market-based sales are subject to certain market behavior rules established by FERC, and if any of our Biogas Conversion Projects that generate Renewable Power are deemed to have violated such rules, we will be subject to potential disgorgement of profits associated with the violation, penalties, refunds of unlawfully collected amounts with interest, and, if a facility obtains MBR Authority, suspension or revocation of such MBR Authority. If such projects that had MBR Authority were later to lose their MBR Authority, they would be required to obtain FERC’s acceptance of a cost-of-service rate schedule and could become subject to the significant accounting, record-keeping, and reporting requirements that are typically imposed on vertically-integrated utilities with cost-based rate schedules. This could have a material adverse effect on the rates we are able to charge for power from our facilities maintaining MBR Authority, if any, that generate Renewable Power.

The regulatory environment for electric generation has undergone significant changes in the last several years due to federal and state policies affecting wholesale competition and the creation of incentives for the addition of large amounts of new renewable generation and, in some cases, transmission assets. These changes are ongoing, and we cannot predict the future design of the wholesale power markets or the ultimate effect that the changing regulatory environment will have on our business.

Our biogas conversion project site owners and operators are also subject to extensive federal, state and local regulations and policies, including permitting requirements, on account of their separate operations. Any failure on their part to comply with any laws, regulations, rules or permits, applicable to them may also adversely affect our business, investments and results of operations.

The operations of biogas conversion project site owners and operators are also subject to stringent and complex governmental regulations and policies at the federal, state and local level in the United States. Many complex laws, rules, orders and interpretations govern environmental protection, health, safety, land use, zoning, transportation and related matters. At times, such governmental regulations and policies may require biogas conversion project site owners and operators to curtail their operations or close sites temporarily or permanently, which may adversely impact our business, investments and results of operations.

Certain permits are required to build, operate and expand sites owned by biogas conversion project site owners and operators, and such permits have become more difficult and expensive to obtain and maintain. Permits may often take years to obtain as a result of numerous hearing and compliance requirements with regard to zoning, environmental and other regulations. The permits required to be obtained and maintained by biogas conversion project site owners and operations are commonly subject to resistance from citizen or other groups and other political pressures, including allegations by such persons that a site is in violation of any applicable permits, laws or regulations. Failure by project site owners and operators to obtain or maintain any required permit to operate its site would adversely affect our production of Renewable Power, RNG and generation of the associated Environmental Attributes, as applicable.

A failure by biogas conversion project site owners and operators to comply with extensive federal, state and local regulations and policies, including permitting requirements, may result in the suspension or cessation of waste site operations, which would reduce or halt Renewable Power or RNG production and generation of the Associated Environmental Attributes. Any such disruption could also damage the reputation of our brand. In the event our production of Renewable Power or RNG is disrupted, we may fail to meet the contractual obligations to some of our counterparties to deliver Renewable Power, RNG and the associated Environmental Attributes, in which case we would be subject to financial damage and/or penalty claims from these counterparties.

The financial performance of our business depends upon tax and other government incentives for the generation of RNG and Renewable Power, any of which could change at any time and such changes may negatively impact our growth strategy.

Our financial performance and growth strategy depend in part on governmental policies that support renewable generation and enhance the economic viability of owning Biogas Conversion Projects or Fueling Stations. These projects currently benefit from various federal, state and local governmental incentives such as investment tax credits, cash grants in lieu of investment tax credits, loan guarantees, Renewable Portfolio Standards (“RPS”) programs,

18

modified accelerated cost-recovery system of depreciation and bonus depreciation. RNG specifically generates meaningful revenue through generation and monetization of Environmental Attributes provided for under several different programs, most commonly, RFS, LCFS and RPS.

Many states have adopted RPS programs mandating that a specified percentage of electricity sales come from eligible sources of renewable energy. However, the regulations that govern the RPS programs, including pricing incentives for renewable energy, or reasonableness guidelines for pricing that increase valuation compared to conventional power (such as a projected value for carbon reduction or consideration of avoided integration costs), may change. If the RPS requirements are reduced or eliminated, it could lead to fewer future power contracts or lead to lower prices for the sale of power in future power contracts, which could have a material adverse effect on our future prospects. Such material adverse effects may result from decreased revenues, reduced economic returns on Biogas Conversion Projects and other potential future investments or joint ventures, increased financing costs, and/or difficulty obtaining financing.

If we are unable to utilize various federal, state and local governmental incentives to acquire additional Biogas Conversion Projects or Fueling Stations in the future, or the terms of such incentives are revised in a manner that is less favorable to us, we may suffer a material adverse effect on our business, financial condition, results of operations and cash flows. In addition, we face similar risks with respect to the RFS program. See — “Existing, and future changes to, federal, state and local regulations and policies, including permitting requirements applicable to us, and enactment of new regulations and policies, may present technical, regulatory and economic barriers to the generation, purchase and use of Renewable Power and RNG, and may adversely affect the market for the associated Environmental Attributes. A failure on our part to comply with any laws, regulations or rules, applicable to us may adversely affect our business, investments and results of operations.”

We rely on interconnection, transmission and pipeline facilities that we do not own or control and that are subject to constraints within a number of our regions. If these facilities fail to provide us with adequate capacity or have unplanned disruptions, we may be restricted in our ability to deliver Renewable Power and RNG to our counterparties and we may either incur additional costs or forego revenues.

We depend on electric interconnection and transmission facilities and gas pipelines owned and operated by others to deliver the energy and fuel we generate at our Biogas Conversion Projects to our counterparties. Some of our electric generating Biogas Conversion Projects may need to hold electric transmission rights in order to sell power to purchasers that do not have their own direct access to our generators. Our access to electric interconnection and transmission rights is subject to tariffs developed by transmission owners, ISOs and RTOs, which have been filed with and accepted by FERC or the Public Utility Commission in the jurisdictions in question. These tariffs establish the price for transmission service, and the terms under which transmission service is rendered. Under FERC’s open access transmission rules, tariffs developed and implemented by transmission owners, ISOs and RTOs must establish terms and conditions for obtaining interconnection and transmission services that are not unduly discriminatory or preferential. However, as a generator and seller of power, we do not have any automatic right, in any geographic market, to firm, long-term, grid-wide transmission service without first requesting such service, funding the construction of any upgrades necessary to provide such service, and paying a transmission service rate. Physical constraints on the transmission system could limit the ability of our electric generating projects to dispatch their power output and receive revenue from sales of Renewable Power.

A failure or delay in the operation or development of these distribution channels or a significant increase in the costs charged by their owners and operators could result in the loss of revenues or increased operating expenses. Such failures or delays could limit the amount of Renewable Power our operating facilities deliver or delay the completion of our construction projects, which may also result in adverse consequences under our power purchase agreements and landfill gas rights agreements. Further, such failures, delays or increased costs could have a material adverse effect on our business, financial condition and results of operations.

Our RNG production projects are similarly interconnected with gas distribution and interstate pipeline systems that are necessary to deliver RNG. A failure or delay in the operation or development of these distribution or pipeline facilities could result in a loss of revenues or breach of contract because such a failure or delay could limit the amount of RNG that we are able to produce or delay the completion of our construction projects. In addition, certain of our RNG transportation capacity may be curtailed without compensation due to distribution and pipeline limitations, reducing our revenues and impairing our ability to capitalize fully on a particular project’s potential. Such a failure

19

or curtailment at levels above our expectations could impact our ability to satisfy our contractual obligations and adversely affect our business. Additionally, we experience work interruptions from time to time due to federally required maintenance shutdowns of distribution and pipeline facilities.

We may acquire or develop RNG projects that require their own pipeline interconnections to available interstate pipeline and distribution networks. In some cases, these pipeline and distribution networks to which such projects are connected may cover significant distances. A failure in the construction or operation of these pipeline and distribution networks that causes the RNG project to be out of service, or subject to reduced service, could result in lost revenues because it could limit our production of RNG and the associated Environmental Attributes that we are able to generate.

We rely on third-party utility companies to provide our Biogas Conversion Projects with adequate utility supplies, including sewer, water, gas and electricity, in order to operate our Biogas Conversion Project facilities. Any failure on the part of such companies to adequately supply our facilities with such utilities, including any prolonged period of loss of electricity, may have an adverse effect on our business and results of operations.

We are dependent on third-party utility companies to provide sufficient utilities including sewer, water, gas and electricity, to sustain our operations and operate our Biogas Conversion Projects. Any major or sustained disruptions in the supply of utilities, such as water, gas or electricity or any fire, flood or other natural calamities, may disrupt our operations or damage our production facilities or inventories and could adversely affect our business, financial condition and results of operations. In addition, we consume a significant amount of electricity in connection with our Biogas Conversion Projects and any increases in costs or reduced availability of such utilities could have a negative impact on our business, financial condition and results of operations.

We are subject to risks associated with litigation or administrative proceedings that could materially impact our operations, including proceedings in the future related to our projects we subsequently acquire.

We are subject to risks and costs, including potential negative publicity, associated with lawsuits, in particular with respect to environmental claims and lawsuits or claims contesting the construction or operation of our Biogas Conversion Projects and Fueling Station projects. The result of and costs associated with defending any such lawsuit or claim, regardless of the merits and eventual outcome, may be material and could have a material adverse effect on our operations. In the future, we may be involved in legal proceedings, disputes, administrative proceedings, claims and other litigation that arise in the ordinary course of our business related to Biogas Conversion Projects or Fueling Stations. For example, individuals and interest groups may sue to challenge the issuance of a permit for a Biogas Conversion Project or a Fueling Station project, or seek to enjoin construction or operation of that facility. We may also become subject to claims from individuals who live in the proximity of our Biogas Conversion Projects and Fueling Stations based on alleged negative health effects related to our operations. In addition, we have been and may subsequently become subject to legal proceedings or claims contesting the construction or operation of our Biogas Conversion Projects and Fueling Stations.

Any such legal proceedings or disputes could delay our ability to complete construction of a Biogas Conversion Project or Fueling Station in a timely manner or at all, or materially increase the costs associated with commencing or continuing commercial operations of such projects. Settlement of claims and unfavorable outcomes or developments relating to such proceedings or disputes, such as judgments for monetary damages, injunctions or denial or revocation of permits, could have a material adverse effect on our ability to implement our growth strategy and, ultimately, our business, financial condition and results of operations. See “Business — Legal Proceedings.”

We currently own, and in the future may acquire, certain assets in which we have limited control over management decisions, including through joint ventures, and our interests in such assets may be subject to transfer or other related restrictions.

We own, and in the future may acquire, certain Biogas Conversion Projects and Fueling Stations through joint ventures. In the future, we may invest in other projects with a joint venture or strategic partner. Joint ventures inherently involve a lesser degree of control over business operations, which could result in an increase in the financial, legal, operational or compliance risks associated with a Biogas Conversion Project or Fueling Station, including, but not limited to, variances in accounting internal control requirements. Our co-venture partners may not have the level of experience, technical expertise, human resources management and other attributes necessary to operate these assets optimally. To the extent we do not have a controlling interest in a Biogas Conversion Project or Fueling Station, our

20

joint venture partners could take actions that decrease the value of our investment and lower our overall return. In addition, conflicts of interest may arise in the future with our joint venture partners, where our joint venture partners’ business interests are inconsistent with our and our stockholders’ interests. Further, disagreements or disputes with our joint venture partners could result in litigation, resulting in increase of expenses incurred and potentially limit the time and effort our officers and directors are able to devote to remaining aspects of our business, all of which could have a material adverse effect on our business, financial condition and results of operations. The approval of our joint venture partners also may be required for us to receive distributions of funds from assets or to sell, pledge, transfer, assign or otherwise convey our interest in such assets. Alternatively, our joint venture partners may have rights of first refusal, rights of first offer or other similar rights in the event of a proposed sale or transfer of our interests in such assets. In addition, we may have, and correspondingly our joint venture partners may have, rights to force the sale of the joint venture upon the occurrence of certain defaults or breaches by the other partner or other circumstances, and there may be circumstances in which our joint venture partner can replace our affiliated entities that provide operation and maintenance and asset management services if they default in the performance of their obligations to the joint venture. These restrictions and other provisions may limit the price or interest level for our interests in such assets, in the event we want to sell such interests.

Our gas rights agreements, power purchase agreements, fuel-supply agreements, interconnection agreements, RNG dispensing agreements and other agreements, including contracts with owners and operators of biogas conversion project sites, often contain complex provisions, including those relating to price adjustments, calculations and other terms based on gas price indices and other metrics, as well as other terms and provisions, the interpretation of which could result in disputes with counterparties that could materially affect our results of operations and customer or other business relationships.

Certain of our gas rights agreements, power purchase agreements, fuel supply agreements, interconnection agreements, RNG dispensing agreements and other agreements, including contracts with owners and operators of biogas conversion project sites, require us to make payments or adjust prices to counterparties based on past or current changes in natural gas price indices, project productivity or other metrics and involve complex calculations. Moreover, the underlying indices governing payments under such agreements are subject to change, may be discontinued or replaced. The interpretation of these price adjustments and calculations and the potential discontinuation or replacement of relevant indices or metrics could result in disputes with the counterparties with respect to such agreements. Any such disputes could adversely affect Biogas Conversion Project revenues, including revenue from associated Environmental Attributes, profit margins, customer or supplier relationships, or lead to costly litigation, the outcome of which we would be unable to predict.

Market Risks Related to Our Business

A reduction in the prices we can obtain for the Environmental Attributes generated from RNG, which include RINs, LCFS credits, and other incentives, could have a material adverse effect on our business prospects, financial condition and results of operations.

A significant portion of our revenues comes from the sale of RINs and LCFS credits, which exist because of legal and governmental regulatory requirements. A change in law or in governmental policies concerning renewable fuels, landfill or animal waste site biogas or the sale of RINs and LCFS could be expected to affect the market for, and the pricing of, the RINs and LCFS credits that we can generate through production at our Biogas Conversion Projects. A reduction in the prices we receive for RINs and LCFS credits, or a reduction in demand for RINs or LCFS credits, whether through market forces generally, through the actions of market participants generally, or through the consolidation or elimination of participants competing in the market for the purchase and retirement of RINs or LCFS credits, could have a material adverse effect on our results of operations.

The volatility in the price of oil, gasoline, diesel, natural gas, RNG, or Environmental Attribute prices could adversely affect our business.

Historically, the prices of Environmental Attributes, RNG, natural gas, crude oil, gasoline and diesel have been volatile and this volatility may continue to increase in future. Factors that may cause volatility in the prices of Environmental Attributes, RNG, natural gas, crude oil, gasoline and diesel include, among others, (i) changes in supply and availability of crude oil, RNG and natural gas; (ii) governmental regulations; (iii) inventory levels; (iv) consumer demand; (v) price and availability of alternatives; (vi) weather conditions; (vii) negative publicity about crude oil or

21

natural gas drilling; (viii) production or transportation techniques and methods; (ix) macro-economic environment and political conditions; (x) transportation costs; and (xi) the price of foreign imports. Specifically, prices for crude oil, which is the commodity used to make gasoline and diesel, have been lower in recent years, due in part to over-production and increased supply without a corresponding increase in demand, and oil prices decreased further in 2020, hitting an all-time low due to the COVID-19 pandemic. More recently, that trend has reversed with oil prices rebounding substantially. Nevertheless, if the prices of crude oil, gasoline and diesel decline again, or if the price of RNG or natural gas increases without corresponding increases in the prices of crude oil, gasoline and diesel or Environmental Attributes, we may not be able to offer our counterparties an attractive price advantage for our vehicle fuels. The market adoption of our vehicle fuels could be slowed or limited, and/or we may be forced to reduce the prices at which we sell our vehicle fuels in order to try and attract new counterparties or prevent the loss of demand from existing counterparties. In addition, we expect that natural gas and crude oil prices will remain volatile for the near future because of market uncertainties over supply and demand, including but not limited to the current state of the world economies, energy infrastructure and other factors. Fluctuations in natural gas prices affect the cost to us of the natural gas commodity. High natural gas prices adversely affect our operating margins when we cannot pass the increased costs to our counterparties. Conversely, lower natural gas prices reduce our revenue when the commodity cost is passed to our counterparties.

Pricing conditions may also exacerbate the cost differential between vehicles that use our vehicle fuels and gasoline or diesel-powered vehicles, which may lead operators to delay or refrain from purchasing or converting to vehicles running on our fuels. Generally, vehicles that use our fuels cost more initially than gasoline or diesel-powered vehicles because the components needed for a vehicle to use our vehicle fuels add to the vehicle’s base cost. Operators then seek to recover the additional base cost over time through a lower cost to use alternative vehicle fuels. Operators may, however, perceive an inability to timely recover these additional initial costs if alternative vehicle fuels are not available at prices sufficiently lower than gasoline and diesel. Such an outcome could decrease our potential customer base and harm our business prospects.

We face significant upward pricing pressure in the market with respect to our securing the biogas rights necessary for proposed new Biogas Conversion Projects and our conversion of existing Renewable Power rights to RNG rights on existing Biogas Conversion Projects that we plan to convert.

We must reach agreement with the prospective biogas project site owner or developer in order to secure the biogas rights necessary for each proposed Biogas Conversion Project. Additionally, each project typically requires a site lease, access easements, permits, licenses, rights of way or other similar agreements. Historically, in exchange for the biogas rights and additional agreements, we have paid the site owner and/or developer a royalty or other similar payment based on revenue generated by the project or volume of biogas used by the project. Over recent years, as competition for development of biogas conversion project sites has increased and biogas project site owners and developers have become more sophisticated, it has become increasingly common for the prospective biogas project site owners and developers to ask for or require larger royalties or similar payments in order to secure the biogas rights. In addition, it is becoming increasingly common for some prospective biogas project site owners or developers to ask for or require equity participation in the prospective project.

In addition, we face similar pricing pressures when we attempt to renew our biogas rights on existing Biogas Conversion Projects at the end of their contractual periods and in situations where we plan to convert existing Renewable Power projects to RNG projects.

These pricing pressures could lead us to decide not to pursue certain prospective Biogas Conversion Projects or not to pursue the renewal or conversion of one or more existing Renewable Power projects and, accordingly, negatively impact our overall financial condition, results of operations and prospects. These pricing pressures could also impact the profitability of prospective Biogas Conversion Projects, and, accordingly, negatively impact our overall financial condition, results of operations and prospects.

We currently face declining market prices for LCFS credits specifically within California as well as significant upward pressure on the costs associated with dispensing RNG specifically within California to generate the LCFS credits.

The market prices for LCFS credits specifically within California have declined over the past twelve months, and the market for dispensing RNG with relatively low CI scores in California has become increasingly competitive because of increasing supply of RNG with these relatively low CI scores. As such, fleet operators using vehicles fueled

22

by natural gas have been able to demand RNG marketers like us provide them with greater economic incentives for allowing us to dispense the fuel at the Fueling Stations, typically in the form of a greater share of our marketing fee or a greater share in the monetary value of the Environmental Attributes we generate when dispensing the fuel. The persistence of the current California dynamic is dependent upon future market developments, and as such the LCFS credits that we generate and sell may or may not produce future revenue that is comparable to historical LCFS revenue.

A prolonged environment of low prices or reduced demand for Renewable Power could have a material adverse effect on our business prospects, financial condition and results of operations.

Long-term Renewable Power and RNG prices may fluctuate substantially due to factors outside of our control. The price of Renewable Power and RNG can vary significantly for many reasons, including: (i) increases and decreases in generation capacity in our markets; (ii) changes in power transmission or fuel transportation capacity constraints or inefficiencies; (iii) power supply disruptions; (iv) weather conditions; (v) seasonal fluctuations; (vi) changes in the demand for power or in patterns of power usage, including the potential development of demand-side management tools and practices; (vi) development of new fuels or new technologies for the production of power; (vii) federal and state regulations; and (viii) actions of the Independent System Operators (“ISOs”) and Regional Transmission Organizations (“RTOs”) that control and administer regional power markets.

Increased rates of recycling and legislation encouraging recycling, increased use of waste incineration, advances in waste disposal technology, decreased demand for meat and livestock products could decrease the availability or change the composition of waste for biogas conversion project gas.

The volume and composition of landfill gas (“LFG”) produced at open landfill sites depends in large part on the volume and composition of waste sent to such landfill sites, which could be affected by a number of factors. For example, increased rates of recycling or increased use of waste incineration could decrease the volume of waste sent to landfills, while organics diversion strategies such as composting can reduce the amount of organic waste sent to landfills. There have been numerous federal and state regulations and initiatives over the recent years that have led to higher levels of recycling of paper, glass, plastics, metal and other recyclables, and there are growing discussions at various levels of government about developing new strategies to minimize the negative environmental impacts of landfills and related emissions, including diversion of biodegradable waste from landfills. Although many recyclable materials other than paper do not decompose and therefore do not ultimately contribute to the amount of landfill gas produced at a landfill site, recycling and other similar efforts may have negative effects on the volume and proportion of biodegradable waste sent to landfill sites across the United States. As a consequence, the volume and composition of waste sent to landfill sites from which our Biogas Conversion Projects collect LFG could change, which could adversely affect our business operations, prospects, financial condition and operational results.

In addition, research and development activities are currently ongoing to provide alternative and more efficient technologies to dispose of waste, to produce by-products from waste and to produce energy, and an increasing amount of capital is being invested to find new approaches to waste disposal, waste treatment and energy generation.

It is possible that this deployment of capital may lead to advances which could adversely affect our sources of landfill gas or provide new or alternative methods of waste disposal or energy generation that become more accepted, or more attractive, than landfills.

We currently use, and may continue in the future to use, forward-sale and hedging arrangements, to mitigate certain risks, but the use of such arrangements could have a material adverse effect on our results of operations.

We currently use, and may continue in the future to use, forward sales transactions to sell Environmental Attributes and Renewable Power before they are generated. In addition, we use interest rate swaps to manage interest rate risk. We may use other types of hedging contracts, including foreign currency hedges if we expand into other countries. If we elect to enter into such hedges, the related asset could recognize financial losses on these arrangements as a result of volatility in the market values of the underlying asset or if a counterparty fails to perform under a contract. If actively quoted market prices and pricing information from external sources are not available, the valuation of such contracts would involve judgment or the use of estimates. As a result, changes in the underlying assumptions or use of alternative valuation methods could affect the reported fair value of such contracts. If the values of such contracts change in a manner that we do not anticipate, or if a counterparty fails to perform under such a contract, it could harm our business, financial condition, results of operations and cash flows.

23

Risks Related to Our Business and Industry

Additional Risk Factors Relating to Our Biogas Capture Business

Our ability to acquire, convert, develop and operate Biogas Conversion Projects, as well as expand production at current Biogas Conversion Projects, is subject to many risks.

Our business strategy includes (i) the conversion of LFG projects from Renewable Power to RNG production where we already controls biogas gas rights, (ii) growth through the procurement of landfill gas rights and manure rights to develop new RNG projects, (iii) the acquisition and expansion of existing Biogas Conversion Projects, and (iv) growth through the procurement of rights to other sources of biogas for production of additional transportation fuels and generation of associated Environmental Attributes. This strategy depends on our ability to successfully convert existing LFG projects and identify and evaluate acquisition opportunities and complete new Biogas Conversion Projects or acquisitions on favorable terms. However, we cannot guarantee that we will be able to successfully identify new opportunities, acquire additional biogas rights and develop new RNG projects or convert existing projects on favorable terms or at all. In addition, we may compete with other companies for these development and acquisition opportunities, which may increase our costs or cause us to refrain from making acquisitions at all.

We may also achieve growth through the expansion of production at certain of our current Biogas Conversion Projects as the related landfills and dairy farms are expanded or otherwise begin to produce more gas or manure, respectively, but we cannot guarantee that we will be able to reach or renew the necessary agreements with site owners on economically favorable terms or at all. If we are unable to successfully identify and consummate future Biogas Conversion Project opportunities or acquisitions of Biogas Conversion Projects, or expand RNG production at our current Biogas Conversion Projects, it will impede our ability to execute our growth strategy. Further, we may also experience delays and cost overruns in converting existing facilities from Renewable Power to RNG production. During the conversion of existing projects, there may be a gap in revenue while the electricity project is offline until the conversion is completed and the new RNG facility commences operations, which may adversely affect our financial condition and results of operations.

Our ability to acquire, convert, develop and operate Biogas Conversion Projects, as well as expand production at current Biogas Conversion Projects, is subject to several additional risks, including:

•regulatory changes that affect the value of RNG and the associated Environmental Attributes, which could have a significant effect on the financial performance of our Biogas Conversion Projects and the number of potential Biogas Conversion Projects with attractive economics;

•changes in energy commodity prices, such as natural gas and wholesale electricity prices, which could have a significant effect on our revenues and expenses;

•changes in pipeline gas quality standards or other regulatory changes that may limit our ability to transport RNG on pipelines for delivery to third parties or increase the costs of processing RNG to allow for such deliveries;

•changes in the broader waste collection industry, including changes affecting the waste collection and biogas potential of the landfill industry, which could limit the LFG resource that we currently target for our Biogas Conversion Projects;

•substantial construction risks, including the risk of delay, that may arise due to forces outside of our control, such as those related to engineering and environmental problems, inclement weather, inflationary pressures on materials and labor, and supply chain and labor disruptions;

•operating risks and the effect of disruptions on our business, including the effects of global health crises, such as the COVID-19 pandemic, weather conditions, catastrophic events, such as fires, explosions, earthquakes, droughts and acts of terrorism, and other force majeure events that impact us, our counterparties, suppliers, distributors and subcontractors;

•accidents involving personal injury or the loss of life;

24

•entering into markets where we have less experience, such as our Biogas Conversion Projects for biogas recovery at livestock farms;

•the ability to obtain financing for a Biogas Conversion Project on acceptable terms or at all and the need for substantially more capital than initially budgeted to complete Biogas Conversion Projects and exposure to liabilities as a result of unforeseen environmental, construction, technological or other complications;

•failures or delays in obtaining desired or necessary land rights, including ownership, leases, easements, zoning rights and building permits;

•a decrease in the availability, increased pricing on, and a delay in the timeliness of delivery of raw materials and components, necessary for the Biogas Conversion Projects to function or necessary for the conversion of a Biogas Conversion Projects from Renewable Power to RNG production;

•obtaining and keeping in good standing permits, authorizations and consents from local city, county, state and US federal government agencies and organizations;

•penalties, including potential termination, under short-term and long-term contracts for failing to produce or deliver a sufficient quantity and acceptable quality of RNG in accordance with our contractual obligations;

•unknown regulatory changes related to the transportation of RNG, which may increase the transportation cost for delivering under our contracts then in effect;

•the consent and authorization of local utilities or other energy development off-takers to ensure successful interconnection to energy grids to enable power and gas sales; and

•difficulties in identifying, obtaining and permitting suitable sites for new Biogas Conversion Projects.

Any of these factors could prevent us from acquiring, developing, converting, operating or expanding our Biogas Conversion Projects, or otherwise adversely affect our business, growth potential, financial condition and results of operations.

Acquiring Biogas Conversion Projects involves numerous risks, including potential exposure to pre-existing liabilities, unanticipated costs in acquiring and implementing the project, and lack of or limited experience in new geographic markets.

The acquisition of existing Biogas Conversion Projects involves numerous risks, many of which may be indiscoverable through the due diligence process, including exposure to previously existing liabilities and unanticipated costs associated with the pre-acquisition period; difficulty in integrating the acquired projects into our existing business; and, if the projects are in new markets, the risks of entering markets where we have limited experience, less knowledge of differences in market terms for gas rights agreements and dispensing agreements, and, for international projects, possible exposure to exchange-rate risk to the extent we need to finance development and operations of foreign projects to repatriate earnings generated by such projects. While we perform due diligence on prospective acquisitions, we may not be able to discover all potential operational deficiencies in such projects. A failure to achieve the financial returns we expect when we acquire Biogas Conversion Projects could have a material adverse effect on our ability to implement our growth strategy and, ultimately, our business, financial condition and results of operations.

Additional risks related to acquiring existing projects, include:

•the purchase price we pay could significantly deplete our cash reserves or result in dilution to our existing stockholders;

•the acquired companies or assets may not improve our customer offerings or market position as planned;

•we may have difficulty integrating the operations and personnel of the acquired companies;

•key personnel and counterparties of the acquired companies may terminate their relationships with the acquired companies as a result of or following the acquisition;

25

•we may experience additional financial and accounting challenges and complexities in certain areas, such as tax planning and financial reporting;

•we may incur additional costs and expenses related to complying with additional laws, rules or regulations in new jurisdictions;

•we may assume or be held liable for risks and liabilities (including for environmental-related costs) as a result of our acquisitions, some of which we may not discover during our due diligence or adequately adjust for in our acquisition arrangements;

•our ongoing business and management’s attention may be disrupted or diverted by transition or integration issues and the complexity of managing geographically diverse enterprises;

•we may incur one-time write-offs or restructuring charges in connection with an acquisition;

•we may acquire goodwill and other intangible assets that are subject to amortization or impairment tests, which could result in future charges to earnings; and

•we may not be able to realize the cost savings or other financial benefits we anticipated.

Our Biogas Conversion Projects face operational challenges, including among other things the breakdown or failure of equipment or processes or performance below expected levels of output or efficiency due to wear and tear of our equipment, latent defects, design or operator errors, force majeure events, or lack of transmission capacity or other problems with third party interconnection and transmission facilities.

The ongoing operation of our Biogas Conversion Projects involves risks that include the breakdown or failure of equipment or processes or performance below expected levels of output or efficiency due to wear and tear of our equipment, latent defects, design or operator errors or force majeure events, among other factors. Operation of our Biogas Conversion Projects also involves risks that we will be unable to transport our product to our counterparties in an efficient manner due to a lack of capacity or other problems with third party interconnection and transmission facilities. Unplanned outages of equipment, including extensions of scheduled outages due to mechanical failures or other problems, occur from time to time and are an inherent risk of our business. Unplanned outages typically increase our operation and maintenance expenses and may reduce our revenue. Biogas conversion project site owners and operators can also impact our production if, in the course of ongoing operations, they damage the site’s biogas collection systems. Our inability to operate our facilities efficiently, manage capital expenditures and costs and generate earnings and cash flow could have a material adverse effect on our business, financial condition, results of operations and cash flows.

We are generally also required under many of our agreements to deliver a minimum quantity of Renewable Power, RNG and/or the associated Environmental Attributes to the counterparty. Unless we can rely on a force majeure or other provisions in the related agreements, falling below such a threshold could subject us to financial expenses and penalties, as well as possible termination of key agreements and potential violations of certain permits, which could further impede our ability to satisfy production requirements. Therefore, any unexpected reduction in output at any of our Biogas Conversion Projects that leads to any of these outcomes could have a material adverse effect on our business, financial condition and results of operations.

An unexpected reduction in RNG production by third-party producers of RNG with whom we maintain marketing agreements to purchase RNG and/or the associated Environmental Attributes, or their inability or refusal to deliver such RNG or Environmental Attributes as provided under such agreements, may have a material adverse effect on our results of operations and could adversely affect or performance under associated dispensing agreements.

The success of our RNG business depends, in large part, on our ability to (i) secure, on acceptable terms, an adequate supply of RNG and/or Environmental Attributes from third-party producers, (ii) sell RNG in sufficient volumes and at prices that are attractive to counterparties and produce acceptable margins for us, and (iii) generate and monetize Environmental Attributes under applicable federal or state programs at favorable prices. If we fail to maintain and build new relationships with third party producers of RNG, we may be unable to supply RNG and the associated Environmental Attributes to meet the demand of our counterparties, which could adversely affect our business.

26

Our ability to dispense an adequate amount of RNG is subject to risks affecting RNG production. Biogas Conversion Projects that produce RNG often experience unpredictable production levels or other difficulties due to a variety of factors, including, among others, (i) problems with equipment, (ii) severe weather, pandemics, or other health crises, including the ongoing COVID-19 pandemic, (iii) construction delays, (iv) technical difficulties, (v) high operating costs, (vi) limited availability, or unfavorable composition of collected feedstock gas, and (vii) plant shutdowns caused by upgrades, expansion or required maintenance. In addition, increasing demand for RNG will result in more robust competition for supplies of RNG, including from other vehicle fuel providers, gas utilities (which may have distinct advantages in accessing RNG supply including potential use of ratepayer funds to fund RNG purchases if approved by a utility’s regulatory commission) and other users and providers. If we or any of our third party RNG suppliers experience these or other difficulties in RNG production processes, or if competition for RNG development projects and supply increases, then our supply of RNG and our ability to resell it as a vehicle fuel and generate the associated Environmental Attributes could be jeopardized.

Construction, development and operation of our Biogas Conversion Projects involves significant risks and hazards.

Biogas Conversion Projects as well as construction and operation of Fueling Stations involve hazardous activities, including acquiring and transporting fuel, operating large pieces of rotating equipment and delivering our Renewable Electricity and RNG to interconnection and transmission systems, including gas pipelines. Hazards such as fire, explosion, structural collapse and machinery failure are inherent risks in our operations. These and other hazards can cause significant personal injury or loss of life, severe damage to and destruction of property, plant and equipment and contamination of, or damage to, the environment. The occurrence of any one of these hazards may result in curtailment or termination of our operations or liability to third parties for damages, environmental cleanup costs, personal injury, property damage and fines and/or penalties, any of which could be substantial.

Our Biogas Conversion Projects facilities and Fueling Stations or those that we otherwise acquire, construct or operate may be targets of terrorist activities, as well as events occurring in response to or in connection with them, that could result in full or partial disruption of our facilities’ ability to generate, transmit, transport or distribute electricity or RNG. Strategic targets, such as energy-related facilities, may be at greater risk of future terrorist activities than other domestic targets. Hostile cyber intrusions, including those targeting information systems, as well as electronic control systems used at the generating plants and for the related distribution systems, could severely disrupt our business operations and result in loss of service to our counterparties, as well as create significant expense to repair security breaches or system damage. In the past we have experienced cyber security breaches, which we believe have not had a significant impact on the integrity of our systems or the security of data, including personal information maintained by us, but there can be no assurance that any future breach or disruption will not have a material adverse effect on our business, financial condition or operations.

Furthermore, some of our facilities are located in areas prone to extreme weather conditions, most notably extreme cold such as has recently occurred in Texas, Oklahoma, Michigan and Minnesota. Certain of our other Biogas Conversion Projects and Fueling Stations as well as certain key vendors conduct their operations in other locations, such as California and Florida, that are susceptible to natural disasters. The frequency of weather-related natural disasters may be increasing due to the effects of greenhouse gas emissions or related climate change effects. The occurrence of natural disasters such as tornados, earthquakes, droughts, floods, wildfires or localized extended outages of critical utilities or transportation systems, or any critical resource shortages, affecting us could cause a significant interruption in our business or damage or destroy our facilities.

We rely on warranties from vendors and obligate contractors to meet certain performance levels, but the proceeds from such warranties or performance guarantees may not cover lost revenues, increased expenses or liquidated damages payments, should we experience equipment breakdown or non-performance by our contractors or vendors. We also maintain an amount of insurance protection that we consider adequate to protect against these and other risks, but we cannot provide any assurance that our insurance will be sufficient or effective under any or all circumstances and against any or all hazards or liabilities to which we may be subject. Also, our insurance coverage is subject to deductibles, caps, exclusions and other limitations. A loss for which we are not fully insured could have a material adverse effect on our business, financial condition, results of operations and cash flows. Because of rising insurance costs and changes in the insurance markets, we cannot provide any assurance that our insurance coverage will continue to be available at all or at rates or on terms similar to those presently available. Our insurance policies are subject to

27

annual review by our insurers and may not be renewed on similar or favorable terms or at all. Any losses not covered by insurance could have a material adverse effect on our business, financial condition, results of operations and cash flows.

Our failure to dispense a specified quality or quantity of RNG could have a material adverse effect on our financial condition and results of operations, by subjecting us to, among other things, possible penalties or terminations under the various contractual arrangements under which we operate, including pursuant to a purchase and sale agreement related to the sale of our Environmental Attributes.

Our RNG business consists of producing RNG from Biogas Conversion Projects, procuring RNG from third party producers, and dispensing this RNG to counterparties through Fueling Stations and other potential end markets to generate and monetize the associated Environmental Attributes. If we fail to produce and dispense a specified quality or quantity of RNG, our business may be adversely impacted.

As an RNG supplier the quality and quantity of RNG we produce at our Biogas Conversion Projects may be negatively affected by, among other things, lack of feedstock or the relative mix in the components of the feedstock, mechanical breakdowns, faulty technology, competitive markets or changes to the laws and regulations that mandate the use of renewable energy sources. In addition, we rely in part on third party suppliers to provide us with certain amounts of the specified quality and quantity of RNG that we are obligated to deliver under contractual commitments to our distribution counterparties but that we have not otherwise produced at our Biogas Conversion Projects.

If we are unable to obtain an adequate supply of RNG through a combination of Biogas Conversion Project production and supplies from third party RNG producers, we may be forced to pay a financial penalty under such contracts, including under a purchase and sale agreement under which we market a substantial majority of our Environmental Attributes through NextEra. Even if we are able to produce and obtain an adequate supply of RNG to satisfy the quantity requirements of our counterparties, RNG and the associated Environmental Attributes must also meet or exceed quality standards. If we and our third party suppliers are unable to meet applicable quality standards, through one or more of the factors discussed above or otherwise, we could be subject to financial penalties under such contracts.

In connection with the marketing of the Environmental Attributes generated from our activities, in November 2021, we signed a purchase and sale agreement with NextEra providing for the exclusive purchase by NextEra of 90% of our Environmental Attributes (RINs and LCFS credits), including those generated by our owned Biogas Conversion Projects and those granted to us in connection with dispensing of RNG on behalf of third-party projects. Under the agreement, we are to receive the net proceeds paid to NextEra by NextEra customers for the purchase of such Environmental Attributes (or in certain circumstances an index-based price or pre-negotiated price) less a specified discount. The agreement provides for an initial five year term, followed by automatic one-year renewals unless terminated by either party at least 90 days prior to the last day of the initial term or then-current renewal term.

Under the agreement, we have committed to sell a minimum quarterly volume of Environmental Attributes to NextEra, which if not satisfied on a cumulative basis (giving credit for certain excess volume sold to NextEra during the contract term) as of the end of the contract term (or upon an early termination of the agreement) would result in our paying NextEra a shortfall payment calculated by (i) multiplying the amount of the volume shortfall by a fraction of the then-current index price of the Environmental Attribute and (ii) adding a specified premium (the “Shortfall Amount”). Similarly, if the agreement is terminated by NextEra due to an event of default (generally defined as a failure by us to pay any undisputed amounts under the agreement, a material uncured breach of our representations or warranties or other obligations under the agreement, or the dissolution, bankruptcy or insolvency of us or certain of our affiliates), NextEra would be entitled to receive, without any duplication, any then-current Shortfall Amount plus an accelerated payment calculated based off of the remaining minimum quarterly volume commitments for the balance of the initial term (or for the next four quarters of the next renewal term, if neither party had provided notice of non-renewal as described above prior to the commencement of such renewal term), which accelerated payment would be similarly calculated by (i) multiplying such remaining minimum quarterly volume commitments by a fraction of the then-current index price of the Environmental Attribute and (ii) adding a specified premium. The amount of such potential payments declines over the course of the contract term as we deliver Environmental Attribute volume under the contract. Were, however, the agreement to be terminated as of the date of this prospectus and we were not to

28

deliver any further Environmental Attribute volume to NextEra under the agreement, the maximum potential payment to NextEra under these provisions would be approximately $15.4 million based on current market prices for such Environmental Attributes.

The success of our RNG projects depends on our ability to timely generate and ultimately receive certification of the Environmental Attributes associated with our RNG production and sale. A delay or failure in the certification of such Environmental Attributes could have a material adverse effect on the financial performance of our Biogas Conversion Projects.

We are required to register our RNG projects with the EPA and relevant state regulatory agencies. Further, we qualify our RINs through a voluntary Quality Assurance Plan, which typically takes from three to five months from first injection of RNG into the commercial pipeline system. Although no similar qualification process currently exists for LCFS credits, we expect such a process to be implemented and would expect to seek qualification on a state-by-state basis under such future programs. Delays in obtaining registration, RIN qualification, and any future LCFS credit qualification of a new project could delay future revenues from the project and could adversely affect our cash flow. Further, we typically make a large investment in the project prior to receiving the regulatory approval and RIN qualification. By registering each RNG project with the EPA’s voluntary Quality Assurance Plan, we are subject to quarterly third-party audits and semi-annual on-site visits of our projects to validate generated RINs and overall compliance with the RFS program. We are also subject to a separate third party’s annual attestation review. The Quality Assurance Plan provides a process for RIN owners to follow, for an affirmative defense to civil liability, if used or transferred Quality Assurance Plan verified RINs were invalidly generated. A project’s failure to comply could result in remedial action by the EPA, including penalties, fines, retirement of RINs, or termination of the project’s registration, any of which could adversely affect our business, financial condition and results of operations.

Maintenance, expansion and refurbishment of our Biogas Conversion Projects involve the risk of unplanned outages or reduced output, resulting from among other things periodic upgrading and improvement, unplanned breakdowns in equipment, and forced outages.

Our Biogas Conversion Project facilities may require periodic upgrading and improvement. Any unexpected operational or mechanical failure, including failure associated with breakdowns and forced outages, could reduce our facilities’ generating capacity below expected levels, reducing our revenues and jeopardizing our ability to earn profits and adversely affect our business, financial condition and results of operations. If we make major modifications to our facilities, such modifications may result in material additional capital expenditures. We may also choose to repower, refurbish or upgrade our facilities based on our assessment that such expenditures will provide adequate financial returns. Such facility modifications require time before commencement of commercial operations, and key assumptions underpinning a decision to make such an investment may prove incorrect, including assumptions regarding construction costs, timing, available financing and future power and renewable natural gas prices. This could have a material adverse effect on our business, financial condition, results of operations and cash flows.

In order to secure development, operational, dispensing and other necessary contract rights for our Biogas Conversion Projects, we typically face a long and variable development cycle that requires significant resource commitments and a long lead time before we realize revenues.

The development, design and construction process for our Biogas Conversion Projects generally lasts from 20 to 48 months, on average. Prior to signing a development agreement, we typically conduct a preliminary audit of the site host’s needs and assess whether the site is commercially viable based on our expected return on investment, investment payback period and other operating metrics, as well as the necessary permits to develop a Biogas Conversion Project on that site. This extended development process requires the dedication of significant time and resources from our sales and management personnel, with no certainty of success or recovery of our expenses. A potential site host may go through the entire sales process and not accept our proposal. Further, upon commencement of operations, it typically takes 4 to 12 months or longer for the Biogas Conversion Project to ramp up to our expected production level. All of these factors, and in particular, increased spending that is not offset by increased revenues, can contribute to fluctuations in our quarterly financial performance and increase the likelihood that our operating results in a particular period will fall below investor expectations.

29

Our Biogas Conversion Projects may not produce expected levels of output, and the amount of Renewable Power or RNG actually produced at each of our respective projects will vary over time, and, therefore so will generation of associated Environmental Attributes.

Our Biogas Conversion Projects rely on organic material, the decomposition of which causes the generation of gas consisting primarily of methane. The Biogas Conversion Projects use such methane gas to generate Renewable Power or RNG. The estimation of biogas production volume is an inexact process and dependent on many site-specific conditions, including the estimated annual waste volume, composition of waste, regional climate and the capacity and construction of the site. Production levels are subject to a number of additional risks, including (i) a failure or wearing out of our or our landfill operators’, counterparties’ or utilities’ equipment; (ii) an inability to find suitable replacement equipment or parts; (iii) less than expected supply or quality of the project’s source of biogas and faster than expected diminishment of such biogas supply; or (iv) volume disruption in our fuel supply collection system. As a result, the volume of Renewable Power or RNG generated from such sites may in the future vary from our initial estimates, and those variations may be material. In addition, we have in the past incurred, and may in the future incur, material asset impairment charges if any of our Biogas Conversion Projects incur operational issues that indicate our expected future cash flows from the relevant project are less than the project’s carrying value. Any such impairment charge could adversely affect our operating results in the period in which the charge is recorded.

In addition, in order to maximize collection of landfill gas, we may need to take various measures, such as drilling additional gas wells in the landfill sites to increase landfill gas collection, balancing the pressure on the gas field based on the data collected by the landfill site operator from the gas wells to ensure optimum landfill gas utilization and ensuring that we match availability of engines and related equipment to availability of landfill gas. There can be no guarantee that we will be able to take all necessary measures to maximize collection. In addition, the landfill gas available to our LFG projects is dependent in part on the actions of the landfill site owners and operators. We may not be able to ensure the responsible management of the landfill site by owners and operators, which may result in less than optimal gas generation or increase the likelihood of “hot spots” occurring. Hot spots can temporarily reduce the volume of gas that may be collected from a landfill site, resulting in a lower gas yield.

Biogas projects utilizing other types of feedstock, specifically livestock waste and dairy farm projects, typically produce significantly less RNG than landfill facilities. As a result, the commercial viability of such projects is more dependent on various factors and market forces outside of our control, such as changes to law or regulations that could affect the value of such projects or the incentives available to them. In addition, there are other factors currently unknown to us that may affect the commercial viability of other types of feedstock. Moreover, fluctuations in manure supply, the end use markets and the spread of diseases among herds could have a material impact on the success and completion of our Biogas Conversion Projects. As such, continued expansion into other types of feedstock could adversely affect our business, financial condition, and results of operations.

Our business plans include expanding from Renewable Power and RNG production projects into additional transportation-related infrastructure, including production and development of hydrogen vehicle fueling stations. Any such expansions may present unforeseen challenges and result in a competitive disadvantage relative to our more-established competitors in the markets into which we wish to expand.

We currently operate Biogas Conversion Projects that convert primarily landfill biogas into Renewable Power and RNG. However, we are actively developing projects that use anaerobic digesters to capture and convert emissions into low-carbon RNG, electricity and green hydrogen, and may expand into additional feedstocks in the future. We are also actively developing hydrogen fueling infrastructure. In addition, we are actively considering expansion into other lines of business, including carbon sequestration and Renewable Power for our projects, and the production of green hydrogen. These initiatives could expose us to increased operating costs, unforeseen liabilities or risks, and regulatory and environmental concerns associated with entering new sectors of the energy industry, including requiring a disproportionate amount of our management’s attention and resources, which could have an adverse impact on our business as well as place us at a competitive disadvantage relative to more established non-LFG market participants.

Sequestering carbon dioxide is subject to numerous laws and regulations with uncertain permitting timelines and costs. We also intend to explore the production of renewable hydrogen sourced from a number of our projects’ RNG, and we may enter into long-term fixed price off-take contracts for green hydrogen that we may produce at our projects.

30

We are currently working with a leading developer of on-site hydrogen generators to put in place construction design and services agreements in order to develop hydrogen gas-as-a-service offerings at Fueling Stations. We do not have an operating history in the green hydrogen market and our forecasts are based on uncertain operations in the future.

Some LFG projects in which we might invest in the future may be subject to cost-of-service rate regulation, which would limit our potential revenue from such LFG projects. If we invest, directly or indirectly, in an electric transmitting LFG project that allows us to exercise transmission market power, FERC could require our affiliates with MBR Authority to implement mitigation measures as a condition of maintaining our or our affiliates’ MBR Authority. FERC regulations limit using a transmission project for proprietary purposes, and we may be required to offer others (including competitors) open-access to our transmission asset, should we acquire one. Such acquisitions could have a material adverse effect on our business, financial condition and results of operations.

Our gas and manure rights agreements for Biogas Conversion Projects are subject to certain conditions. A failure to satisfy such conditions could result in the loss of such rights.

Our gas and manure rights agreements for Biogas Conversion Projects generally require that we achieve commercial operations for a project as of a specified date. If we do not satisfy such a deadline, the agreement may be terminated at the option of the biogas conversion project site owner without any reimbursement of any portion of the purchase price paid for the gas or manure rights or any other amounts we have invested in the project. Delays in construction or delivery of equipment may result in our failing to meet the commercial operations deadline in a gas or manure rights agreement. The denial or loss of a permit essential to a Biogas Conversion Project could impair our ability to construct or operate a project as required under the relevant agreement. Delays in the review and permitting process for a project can also impair or delay our ability to construct or acquire a project and satisfy any commercial operations deadlines, or increase the cost such that the project is no longer attractive to us.

Furthermore, certain of our gas and manure rights agreements for Biogas Conversion Projects require us to purchase a certain amount of LFG and manure, respectively. Any issues with our production at the corresponding projects, including due to weather, unplanned outages or transmission problems, to the extent not caused by the landfill or dairy farm, or covered by force majeure provisions in the relevant agreement, could result in failure to purchase the required amount of LFG or manure and the loss of these gas rights. Our gas and manure rights agreements often grant us the right to build additional generation capacity in the event of increased supply, but failure to use such increased supply after a prescribed period of time can result in the loss of these rights. In addition, we typically need approval from landfill owners in order to implement Renewable Power-to-RNG conversion projects, and we are also dependent on landfill owners for additional gas rights as well as land leases and easements for these conversion projects.

Additional Risk Factors Relating to Our Dispensing Business

Our commercial success depends in part on our ability to identify, acquire, develop and operate public and private Fueling Stations for public and commercial fleet vehicles in order to dispense RNG for use as vehicle fuel and generate the associated Environmental Attributes.

Our specific focus on RNG to be used as a transportation fuel in the United States exposes us to risks related to the supply of and demand for RNG and the associated Environmental Attributes, the cost of capital expenditures, governmental regulation, and economic conditions, among other factors. As an RNG dispenser we may also be negatively affected by lower RNG production resulting from lack of feedstock, mechanical breakdowns, faulty technology, competitive markets or changes to the laws and regulations that mandate the use of renewable energy sources.

In addition, other factors related to the development and operation of renewable energy projects could adversely affect our business, including: (i) changes in pipeline gas quality standards or other regulatory changes that may limit our ability to transport RNG on pipelines or increase the costs of processing RNG; (ii) construction risks, including the risk of delay, that may arise because of inclement weather or labor disruptions; (iii) operating risks and the effect of disruptions on our business; (iv) budget overruns and exposure to liabilities because of unforeseen environmental, construction, technological or other complications; (v) failures or delays in obtaining desired or necessary rights, including leases and feedstock agreements; and (vi) failures or delays in obtaining and keeping in

31

good standing permits, authorizations and consents from local city, county, state and US federal government agencies and organizations. Any of these factors could prevent completion or operation of projects, or otherwise adversely affect our business, financial condition, and results of operations.

Our success is dependent on the willingness of commercial fleets and other counterparties to adopt, and continue use of RNG, which may not occur in a timely manner, at expected levels or at all. Our vehicle fleet counterparties may choose to invest in renewable vehicle fuels other than RNG.

Our success is highly dependent on the adoption by commercial fleets and other consumers of natural gas vehicle fuels, which has been slow, volatile and unpredictable in many sectors. For example, adoption and deployment of natural gas in heavy and medium-duty trucking has been slower and more limited than we anticipated. Also, other important fleet markets, including airports and public transit, had slower than expected volume and customer growth in 2018, 2019 and 2020, which was largely reversed in 2021, but may continue into 2022 and beyond. If the market for natural gas vehicle fuels does not develop at improved rates or levels, or if a market develops but we are not able to capture a significant share of the market or the market subsequently declines, our business, growth potential, financial condition, and operating results would be harmed.

Additional factors that may influence the adoption of natural gas vehicle fuels, many of which are beyond our control, include, among others:

•Lack of demand for trucks that use natural gas vehicle fuels due to business disruptions and depressed oil prices;

•Adoption of governmental policies or programs or increased publicity or popular sentiment in favor of vehicles or fuels other than natural gas, including long-standing support for gasoline and diesel-powered vehicles, changes to emissions requirements applicable to vehicles powered by gasoline, diesel, natural gas, or other vehicle fuels and/or growing support for electric and hydrogen-powered vehicles;

•Perceptions about the benefits of natural gas vehicle fuels relative to gasoline, diesel and other alternative vehicle fuels, including with respect to factors such as supply, cost savings, environmental benefits and safety;

•The volatility in the supply, demand, use and prices of crude oil, gasoline, diesel, RNG, natural gas and other vehicle fuels, such as electricity, hydrogen, renewable diesel, biodiesel and ethanol;

•Inertia among fleets and fleet vehicle operators, who may be unable or unwilling to prioritize converting a fleet to our vehicle fuels over an operator’s other general business concerns, particularly if the operator is not sufficiently incentivized by emissions regulations or other requirements or lacks demand for the conversion from its counterparties or drivers;

•Vehicle cost, fuel efficiency, availability, quality, safety, convenience (to fuel and service), design, performance and residual value, as well as operator perception with respect to these factors, generally and in our key customer markets and relative to comparable vehicles powered by other fuels;

•The development, production, cost, availability, performance, sales and marketing and reputation of engines that are well-suited for the vehicles used in our key customer markets, including heavy and medium-duty trucks and other fleets;

•Increasing competition in the market for vehicle fuels generally, and the nature and effect of competitive developments in such market, including improvements in or perceived advantages of other vehicle fuels and engines powered by such fuels;

•The availability and effect of environmental, tax or other governmental regulations, programs or incentives that promote our products or other alternatives as a vehicle fuel, including certain programs under which we generate Environmental Attributes by selling RNG as a vehicle fuel, as well as the market prices for such credits; and

•Emissions and other environmental regulations and pressures on producing, transporting, and dispensing our fuels.

32

In June 2020, CARB adopted the Advanced Clean Trucks regulation, which requires manufacturers to sell a gradually increasing proportion of zero-emission electric trucks, vans and pickup trucks from 2024 onwards. By the year 2045, the Advanced Clean Trucks regulation seeks to have every new commercial vehicle sold in California be zero-emissions. Further, in September 2020, the Governor of the State of California issued the September 2020 Executive Order providing that it shall be the goal of California that (i) 100% of in-state sales of new passenger cars and trucks will be zero-emission by 2035, (ii) 100% of medium- and heavy-duty vehicles in California will be zero-emission by 2045 for all operations, where feasible, and by 2035 for drayage trucks, and (iii) the state will transition to 100% zero-emission off-road vehicles and equipment by 2035 where feasible. The September 2020 Executive Order also directed CARB to develop and propose regulations and strategies aimed at achieving the foregoing goals. Among other things, we believe the intent of the Advanced Clean Trucks regulation and the September 2020 Executive Order is to limit and ultimately discontinue the production and use of internal combustion engines because such engines have “tailpipe” emissions. If either the Advanced Clean Trucks regulation or any additional regulations adopted by CARB, including because of the September 2020 Executive Order, is permitted to take effect, it may slow, delay or prevent the adoption by fleets and other commercial consumers of our vehicle fuels, particularly in California. Moreover, because of the adoption of the Advanced Clean Trucks regulation and the issuance of the September 2020 Executive Order, other states have taken steps to enact similar regulations, which actions may accelerate if either regulation is permitted to take effect, thereby slowing, delaying or preventing the adoption of our vehicle fuels in those states as well.

Acquisition, financing, construction, and development of Fueling Station projects by us or our partners that own projects may not commence on anticipated timelines or at all.

Our strategy is to continue to expand, including through the acquisition of additional Fueling Station projects and by signing additional supply agreements with third party project owner partners. From time to time we and our partners enter into nonbinding letters of intent for projects. Until the negotiations are final, however, and the parties have executed definitive documentation, we or our partners may not be able to consummate any development or acquisition transactions, or any other similar arrangements, on the terms set forth in the applicable letter of intent or at all.

The acquisition, financing, construction and development of projects involves numerous risks, including:

•difficulties in identifying, obtaining, and permitting suitable sites for new projects;

•failure to obtain all necessary rights to land access and use;

•inaccuracy of assumptions with respect to the cost and schedule for completing construction;

•inaccuracy of assumptions with respect to the biogas potential, including quality, volume, and asset life;

•the ability to obtain financing for a project on acceptable terms or at all;

•delays in deliveries or increases in the price of equipment or other materials;

•permitting and other regulatory issues, license revocation and changes in legal requirements;

•increases in the cost of labor, labor disputes and work stoppages or the inability to find an adequate supply of workers;

•failure to receive quality and timely performance of third-party services;

•unforeseen engineering and environmental problems;

•cost overruns or supply chain disruptions;

•accidents involving personal injury or the loss of life

•weather conditions, health crises, pandemics, catastrophic events, including fires, explosions, earthquakes, droughts and acts of terrorism, and other force majeure events; and

•interconnection and access to utilities.

33

In addition, new projects have no operating history. A new project may be unable to fund principal and interest payments under its debt service obligations or may operate at a loss.

Our Fueling Station construction activities for commercial fleets and other counterparties are subject to business and operational risks, including predicting demand in a particular market or markets, land use, permitting or zoning difficulties, responsibility for actions of sub-contractors on jobs in which we serve as general contractor, potential labor shortages due to the COVID-19 pandemic or otherwise, and cost overruns.

As part of our business activities, we design and construct Fueling Stations that we either own and operate ourselves or provide these services for our counterparties. These activities require a significant amount of judgment in determining where to build and open Fueling Stations, including predictions about fuel demand that may not be accurate for any of the locations we target. As a result, we may build Fueling Stations that we may not open for fueling operations, and we may open Fueling Stations that fail to generate the volume or profitability levels we anticipate, either or both of which could occur due to a lack of sufficient customer demand at the specific locations or for other reasons. For any Fueling Stations that are completed but unopened, we would have substantial investments in assets that do not produce revenue, and for Fueling Stations that are open and underperforming, we may decide to close them.

We also face many operational challenges in connection with our Fueling Station design and construction activities. For example, we may not be able to identify suitable locations for the Fueling Stations we or our counterparties seek to build. Additionally, even if preferred sites can be located, we may encounter land use or zoning difficulties, problems with utility services, challenges obtaining and retaining required permits and approvals or local resistance, including due to reduced operations of permitting agencies because of the ongoing COVID-19 pandemic, any of which could prevent us or our counterparties from building new stations on such sites or limit or restrict the use of new or existing stations. Any such difficulties, resistance or limitations or any failure to comply with local permit, land use or zoning requirements could restrict our activities or expose us to fines, reputational damage or other liabilities, which would harm our business and results of operations.

In addition, we act as the general contractor and construction manager for new Fueling Station construction and facility modification projects, and we typically rely on licensed subcontractors to perform the construction work. We may be liable for any damage we or our subcontractors cause or for injuries suffered by our employees or our subcontractors’ employees during the course of work on our projects. Additionally, shortages of skilled subcontractor labor and any supply chain disruptions affecting access to and cost of construction materials could significantly delay a project or otherwise increase our costs. Further, our expected profit from a project is based in part on assumptions about the cost of the project, and cost overruns, delays or other execution issues may, in the case of projects we complete and sell to counterparties, result in our failure to achieve our expected margins or cover our costs, and in the case of projects we build and own, result in our failure to achieve an acceptable rate of return. If any of these events occur, our business, operating results and cash flows could be negatively affected.

Additional Risk Factors Relating to Our Business in General

Certain of our Biogas Conversion Projects and Fueling Stations are newly constructed or are under construction and may not perform as we expect.

We have a number of Biogas Conversion Projects under construction that will begin production over the next 18-24 months. Therefore, our expectations of the operating performance of these facilities are based on assumptions and estimates made without the benefit of operating history. Our forecasts with respect to our new and developing projects, and related estimates and assumptions, are based on limited or future operating history. These facilities also include digesters under development for which we have no operating history. The ability of these facilities to meet our performance expectations is subject to the risks inherent in newly constructed energy generation and RNG production facilities and the construction of such facilities, including delays or problems in construction, degradation of equipment in excess of our expectations, system failures, and outages. The failure of these facilities to perform as we expect could have a material adverse effect on our business, financial condition, results of operations and cash flows.

34

Our contracts with government entities may be subject to unique risks, including possible termination of or reduction in the governmental programs under which we operate, instances in which our contract provisions allow the government entity to terminate, amend or change terms at their convenience, and competitive bidding processes for the award of contracts.

We have, and expect to continue to seek, long-term Fueling Station construction, maintenance and fuel sale contracts with various government entities. In addition to normal business risks, including the other risks discussed in these risk factors, our contracts with government entities are often subject to unique risks, some of which are beyond our control. For example, long-term government contracts and related orders are subject to cancellation if adequate appropriations for subsequent performance periods are not made. Further, the termination of funding for a government program supporting any of our government contracts could result in the loss of anticipated future revenue attributable to such contract. Moreover, government entities with which we contract are often able to modify, curtail or terminate contracts with us at their convenience and without prior notice, and would only be required to pay for work completed and commitments made at or prior to the time of termination.

In addition, government contracts are frequently awarded only after competitive bidding processes, which are often protracted. In many cases, unsuccessful bidders for government contracts are provided the opportunity to formally protest the contract awards through various agencies or other administrative and judicial channels. The protest process may substantially delay a successful bidder’s contract performance, result in cancellation of the contract award entirely and distract management. As a result, we may not be awarded contracts for which we bid, and substantial delays or cancellation of government contracts may follow any successful bids as a result of any protests by other bidders. The occurrence of any of these risks could have a material adverse effect on our results of operations and financial condition.

Our level of indebtedness and preferred stock redemption obligations could adversely affect our ability to raise additional capital to fund our operations and acquisitions. It could also expose us to the risk of increased interest rates and limit our ability to react to changes in the economy or our industry. We may be unable to obtain additional financing to fund our operations or growth.

Our pro forma consolidated indebtedness as of June 30, 2022 would have been approximately $210.5 million, or approximately 41.7% of our total pro forma capitalization of $504.6 million at such date. See “Unaudited Pro Forma Combined Financial Information” elsewhere in this prospectus for a discussion of the related pro forma adjustments and assumptions. Additionally, on November 29, 2021, we entered into an Exchange Agreement with Hillman pursuant to which Opco issued to Hillman Series A-1 Preferred Units of Opco, which are redeemable after four years at the option of Hillman for an aggregate redemption price of $30.0 million plus accrued and unpaid dividends thereon. In addition, we have drawn down the NextEra $100.0 million subscription commitment and issued to NextEra 1,000,000 Series A Preferred Units of Opco, which are redeemable after four years at the option of NextEra for an aggregate redemption price of $100.0 million plus accrued and unpaid dividends thereon.

Our substantial indebtedness and preferred units redemption obligations could have important consequences, including, for example:

•being required to accept then-prevailing market terms in connection with any required refinancing of such indebtedness or redemption obligations, which may be less favorable than existing terms;

•failure to refinance, or to comply with the covenants in the agreements governing, these obligations could result in an event of default under those agreements, which could be difficult to cure or result in our bankruptcy;

•our debt service and dividend obligations require us to dedicate a substantial portion of our cash flow to pay principal and interest on our debt and dividends on our preferred units, thereby reducing the funds available to us and our ability to borrow to operate and grow our business;

•our limited financial flexibility could reduce our ability to plan for and react to unexpected opportunities; and

35

•our substantial debt service obligations make us vulnerable to adverse changes in general economic, credit and capital markets, industry and competitive conditions and adverse changes in government regulation and place us at a disadvantage compared with competitors with less debt or mandatorily redeemable preferred units.

Any of these consequences could have a material adverse effect on our business, financial condition and results of operations. If we do not comply with our obligations under our debt instruments or with respect to our preferred units, we may be required to refinance all or part of our existing debt and preferred units, borrow additional amounts or sell securities, which we may not be able to do on favorable terms or at all. In addition, increases in interest and dividend rates and changes in debt and preferred equity covenants may reduce the amounts that we can borrow or otherwise finance, reduce our cash flows and increase the equity investment we may be required to make to complete construction of our Biogas Conversion Projects and Fueling Stations. These increases could cause some of our projects to become economically unattractive. If we are unable to raise additional capital or generate sufficient operating cash flow to repay our indebtedness and preferred unit obligations, we could be in default under our lending agreements and preferred unit designations and could be required to delay construction of new projects, reduce overhead costs, reduce the scope of our projects or abandon or sell some or all of our projects, all of which could have a material adverse effect on our business, financial condition and results of operations.

Our existing credit facilities contain financial covenants and our credit facilities and preferred stock designations contain other restrictive covenants that limit our ability to return capital to equity holders or otherwise engage in activities that may be in our long-term best interests. Our inability to comply with those covenants could result in an event of default or material breach which, if not cured or waived, may entitle the related lenders or preferred unit holders to higher interest or dividend payment to demand repayment or enforce their security interests (in the case of indebtedness) and other remedies, which could have a material adverse effect on our business, financial condition, results of operations and cash flows. In addition, failure to comply with such covenants may entitle the related lenders to demand repayment and accelerate all such indebtedness. Further, in certain circumstances following a failure to timely redeem our Preferred Stock, holders of such Preferred Stock have the right to designate a director to our board of directors.

In connection with certain project development opportunities, we have utilized project-level financing in the past and may need to do so again in the future; however, we may not be able to obtain such financing on commercially reasonable terms or at all. The agreements governing such financings typically contain financial and other restrictive covenants that limit a project subsidiary’s ability to make distributions to its parent or otherwise engage in activities that may be in its long-term best interests. Project-level financing agreements generally prohibit distributions from the project entities to us unless certain specific conditions are met, including the satisfaction of certain financial ratios or a facility achieving commercial operations. Our inability to comply with such covenants may prevent cash distributions by the particular project or projects to us and could result in an event of default which, if not cured or waived, may entitle the related lenders to demand repayment or enforce their security interests, which could result in a loss of project assets and/or otherwise have a material adverse effect on our business, results of operations and financial condition.

Liabilities and costs associated with hazardous materials and contamination and other environmental conditions may require us to conduct investigations or remediation at the properties underlying our projects, may adversely impact the value of our projects or the underlying properties, and may expose us to liabilities to third parties.

We may incur liabilities for the investigation and cleanup of any environmental contamination at the properties underlying or adjacent to our projects, or at off-site locations where we arrange for the disposal of hazardous substances or wastes. Under the Comprehensive Environmental Response, Compensation and Liability Act of 1980 and other federal, state and local laws, an owner or operator of a property may become liable for costs of investigation and remediation, and for damages to natural resources. These laws often impose liability without regard to whether the owner or operator knew of, or was responsible for, the release of such hazardous substances or whether the conduct giving rise to the release was legal at the time when it occurred. In addition, liability under certain of these laws is joint and several, which means that we may be assigned liabilities for hazardous substance conditions that exceed our action contributions to the contamination conditions. We also may be subject to related claims by private parties alleging property damage and personal injury due to exposure to hazardous or other materials at or from those properties. We

36

may incur substantial investigation costs, remediation costs or other damages, thus harming our business, financial condition and results of operations, as a result of the presence or release of hazardous substances at locations where we operate or as a result of our own operations.

The presence of environmental contamination at a project may adversely affect an owner’s ability to sell such project or borrow funds using the project as collateral. To the extent that an owner of the real property underlying one of our projects becomes liable with respect to contamination at the real property, the ability of the owner to make payments to us may be adversely affected.

We may also face liabilities in cases of exposure to hazardous materials, and claims for such exposure can be brought by any third party, including workers, employees, contractors and the general public. Claims can be asserted by such persons relating to personal injury or property damage, and resolving such claims can be expensive and time consuming, even if there is little or no basis for the claim.

We have a history of accounting losses and may incur additional losses in the future.

Opco and its predecessor companies have incurred net losses historically, including a net loss of $6.7 million for the six months ended June 30, 2022, net income attributable to OPAL Fuels LLC of $41.4 million for the year ended December 31, 2021 and net loss of $25.4 million for the year ended December 31, 2020, respectively. We may incur losses in future periods, and we may never sustain profitability, either of which would adversely affect our business, prospects and financial condition and may cause the price of Common Stock to fall. Furthermore, historical losses may not be indicative of future losses due to many factors outside of our control including but not limited to the unpredictability of the COVID-19 pandemic, and our future losses may be greater than our past losses. In addition, to try to achieve or sustain profitability, we may choose or be forced to take actions that result in material costs or material asset or goodwill impairments. We review our assets for impairment whenever events or changes in circumstances indicate that the carrying value of an asset or asset group may not be recoverable, and we perform a goodwill impairment test on an annual basis and between annual tests in certain circumstances, in each case in accordance with applicable accounting guidance and as described in the financial statements and notes to the financial statements included in this report. Changes to the use of our assets, divestitures, changes to the structure of our business, significant negative industry or economic trends, disruptions to our operations, inability to effectively integrate any acquired businesses, further market capitalization declines, or other similar actions or conditions could result in additional asset impairment or goodwill impairment charges or other adverse consequences, any of which could have material adverse effects on our financial condition, our results of operations and the trading price of Common Stock.

Loss of our key management could adversely affect our business performance. Our management team has limited experience in operating a public company such as us.

We are dependent on the efforts of our key management. Although we believe qualified replacements could be found for any departures of key executives, the loss of their services could adversely affect our performance and the value of our Class A common stock.

The COVID-19 pandemic and measures intended to reduce its spread have, and may continue to, adversely affect our business, results of operations and financial condition.

Beginning in late 2019, a novel strain of coronavirus (COVID-19) spread throughout the world, including the United States, ultimately being declared a pandemic. Global health concerns and increased efforts to reduce the spread of the COVID-19 pandemic prompted federal, state and local governments to restrict normal daily activities, which resulted in lockdowns, travel bans, quarantines, “shelter-in-place” orders requiring individuals to remain in their homes other than to conduct essential services or activities, business limitations and shutdowns (subject to exceptions for certain essential operations and businesses, including our business). Some of these governmental restrictions have since been scaled back or lifted, although an increase in the prevalence of COVID-19 cases and the spread of new variants may result in the re-imposition of certain restrictions and may lead to other restrictions being implemented in response to efforts to reduce the spread of COVID-19. Given the dynamic nature of these circumstances and the related adverse impact these restrictions have had, and may continue to have, on the economy generally, our business and financial results may continue to be adversely affected by the COVID-19 pandemic.

37

Our operations have been designated “essential critical infrastructure work” in the energy sector by the U.S. Department of Homeland Security, meaning that we have been able to continue full operations. Despite our essential designation and our continued operations, however, we are subject to various risk and uncertainties because of the COVID-19 pandemic that could materially adversely affect our business, results of operations and financial condition, including the following:

•a further delay in the adoption of natural gas vehicle fuels by heavy-duty trucks and/or a delay in increasing the use of our vehicle fuels;

•a continued or further decrease in the volume of truck and fleet operations, including shuttle busses at airports, and lower-than-normal levels of public transportation generally, which have resulted in, and may continue to result in, decreased demand for our vehicle fuels;

•the impact of business disruptions on the production of vehicles and engines that use our fuels, which has resulted in, and may continue to result in, plant closures, decreased manufacturing capacity, and delays in deliveries; and

•depressed oil and diesel prices, especially relative to natural gas prices and for a prolonged period, which may decrease the price-related incentive for operators to adopt trucks that use our vehicle fuels.

The duration and extent of the impact of the COVID-19 pandemic on our business and financial results will depend on future developments, including the duration, severity and spread of the COVID-19 pandemic, actions taken to contain its spread, any further resurgence of COVID-19, the severity and transmission rates of new variants of COVID-19, the availability, distribution and efficacy of vaccines and therapeutics for COVID-19 and how quickly and to what extent normal economic and operating conditions can (and will) resume within the markets in which we operate, each of which are highly uncertain at this time and are outside of our control. Even after the COVID-19 pandemic subsides, we may continue to experience adverse effects to our business and financial results because of its global economic impact, including any economic downturn or recession that has occurred or may occur. The adverse effect of the COVID-19 pandemic on our business, results of operations and financial condition could be material.

Some relationships with our counterparties and suppliers may experience disruptions as a result of the Business Combination, which may limit our business.