Plug Power Inc: Form 10-Q for the period ended Mar 31, 2026

The following discussion should be read in conjunction with our accompanying unaudited interim condensed consolidated financial statements and notes thereto included within this Quarterly Report on Form 10-Q, and our audited consolidated financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2025 (the “2025 Form 10-K”). In addition to historical information, this Quarterly Report on Form 10-Q and the following discussion contain statements that are considered forward-looking within the meaning of Section 27A of the Securities Act of 1933, as amended (the “Securities Act”), and Section 21E of the Securities Exchange Act of 1934, as amended (the “Exchange Act”). We intend such forward-looking statements to be covered by the safe harbor provisions for forward-looking statements contained in the Private Securities Litigation Reform Act of 1995. These forward-looking statements relate to, among other things, our liquidity and capital resources; our ability to generate cash from operations and achieve profitability; the execution and timing of strategic initiatives, including asset monetization and capital optimization efforts; our ability to access and utilize financing arrangements, including the satisfaction of conditions precedent to, and timing and availability of funding under, such arrangements with governmental or commercial counterparties, and our continued compliance with the terms and covenants thereof; the timing, construction, commissioning and scaling of hydrogen production facilities; anticipated revenue growth, margin improvement and cost reductions; customer demand and order conversion; the development, commercialization, performance, reliability and cost competitiveness of electrolyzers, fuel cell systems, hydrogen storage and related technologies; expansion into new markets and applications, including stationary power, backup and distributed generation solutions and data center power applications, and the pace of adoption of hydrogen technologies in those markets; supply chain availability, component reliability, input cost volatility and electricity pricing trends; regulatory, environmental and trade policy developments, including the availability and impact of clean energy tax credits and other incentives and evolving administrative or interpretive guidance relating thereto; trade restrictions, tariffs, export controls and related geopolitical policy risks that could increase costs, limit market access or disrupt our supply chain; future capital expenditures and investment priorities; customer and counterparty concentration and counterparty credit risk; our expectations regarding the hydrogen economy and broader clean energy market; and our long-term growth strategy.

Forward-looking statements are typically identified by words such as “anticipate,” “believe,” “could,” “continue,” “estimate,” “expect,” “forecast,” “intend,” “may,” “plan,” “project,” “should,” “target,” “will,” “would,” and similar expressions, including the negatives thereof. These statements are based on our current expectations, assumptions and projections regarding future events and financial trends that we believe may affect our financial condition, results of operations, business strategy and financial needs. However, forward-looking statements involve known and unknown risks, uncertainties and other factors, many of which are outside our control, that may cause actual results, performance or achievements to differ materially from those expressed or implied by such statements.

Investors are cautioned not to unduly rely on forward-looking statements. Important factors that could cause actual results to differ materially include, among others:

• our history of operating losses and negative cash flows and our ability to generate sufficient revenue and gross margin to achieve profitability;
• our need to raise additional capital and the availability of financing on acceptable terms;
• the timing and ability to complete strategic transactions, including infrastructure optimization initiatives, and the realization of expected liquidity benefits;
• our ability to successfully build, operate and optimize hydrogen production facilities at scale and within projected cost and schedule parameters, including achieving anticipated capacity utilization rates;
• supply chain constraints, component reliability issues and volatility in electricity and other input costs affecting the cost, performance and economics of our products and hydrogen production facilities;
• our ability to maintain and expand relationships with key customers and partners and the risks associated with customer or counterparty concentration (including reliance on a small number of large customers or partners);
• delays in customer adoption of hydrogen solutions or slower-than-expected development of hydrogen infrastructure or failure of the hydrogen economy to develop at the pace or scale anticipated;
• the impact of governmental incentives, including clean hydrogen production tax credits and investment tax credits, and potential changes in law, regulation or administrative guidance;
• risks associated with long-term service contracts, product performance, reliability, warranty costs and contract loss accruals;
• the safety risks inherent in hydrogen production, storage and transportation;
• our operational dependency on information technology systems and the risk of the failure of such technology, including failure to effectively prevent, detect, and recover from security compromises or breaches, including cyber-attacks;
• macroeconomic conditions, including inflation, interest rates, capital market volatility, supply chain disruption and geopolitical developments;
• trade policy risk (including tariffs and export/import controls) that could increase costs or limit access to critical components or markets;
• potential impairment charges, contract loss accrual adjustments or asset write-downs;
• dilution resulting from equity issuances or exercise of warrants and convertible instruments;
• competition from existing and emerging energy technologies and alternative clean energy solutions;
• environmental, health and safety regulations and permitting requirements; and
• the other risks described under Part I, Item 1A, “Risk Factors,” and elsewhere in the Annual Report on Form 10-K for the fiscal year ended December 31, 2025.

The risks included here are not exhaustive, and additional factors could adversely affect our business and financial performance, including factors and risks discussed in the section titled “Risk Factors” included under Part I, Item 1A, in our 2025 Form 10-K and supplemented by Part II, Item 1A of this Quarterly Report on Form 10-Q. Moreover, we operate in a very competitive and rapidly changing environment. New risk factors emerge from time to time, and it is not possible for management to predict all such risk factors, nor can we assess the impact of all such risk factors on our business or the extent to which any factor, or combination of factors, may cause actual results to differ materially from these contained in any forward-looking statements. While forward-looking statements reflect our good faith beliefs, they are not guarantees of future performance. These forward-looking statements speak only as of the date on which the statements were made. Except as may be required by applicable law, we do not undertake or intend to update any forward-looking statements after the date of this Quarterly Report on Form 10-Q.

References in this Quarterly Report on Form 10-Q to “Plug,” the “Company,” “we,” “our,” or “us” refer to Plug Power Inc., including as the context requires, its subsidiaries.

Overview

Plug is facilitating the paradigm shift to an increasingly electrified world by innovating cutting-edge hydrogen and fuel cell solutions.

While we continue to develop commercially viable hydrogen and fuel cell product solutions, we have expanded our offerings to support a variety of commercial operations that can be powered with clean hydrogen. We provide electrolyzers that allow customers — such as refineries, producers of chemicals, steel, fertilizer and commercial refueling stations — to generate hydrogen on-site. We are focusing our efforts on (a) industrial mobility applications, including electric forklifts and electric industrial vehicles, at multi-shift high volume manufacturing and high throughput distribution sites where we believe our products and services provide a unique combination of productivity, flexibility, and environmental benefits; and (b) production of hydrogen. Plug expects to support these products and customers with an ecosystem of vertically integrated products that produce, transport, store and handle, dispense, and use hydrogen for mobility and power applications.

Our current product and service portfolio includes:

GenDrive: GenDrive is our hydrogen fueled PEM fuel cell system, providing power to material handling EVs, including Class 1, 2, 3 and 6 electric forklifts, automated guided vehicles, and ground support equipment.

GenFuel: GenFuel is our liquid hydrogen fueling, delivery, generation, storage, and dispensing system.

GenCare: GenCare is our ongoing “Internet of Things”-based maintenance and on-site service program for GenDrive fuel cell systems, GenSure fuel cell systems, GenFuel hydrogen storage and dispensing products.

GenKey: GenKey is our vertically integrated “turn-key” solution combining either GenDrive or GenSure fuel cell power with GenFuel fuel and GenCare aftermarket service, offering complete simplicity to customers transitioning to fuel cell power.

GenEco Electrolyzers: The design and implementation of 5MW and 10MW electrolyzer systems that are modular, scalable hydrogen generators optimized for clean hydrogen production. Electrolyzers generate hydrogen from water using electricity and can produce “green” hydrogen when powered by renewable energy inputs, such as solar or wind power.

Liquefaction Systems: Plug’s 15 ton-per-day and 30 ton-per-day liquefiers are engineered for high efficiency, reliability, and operational flexibility — providing consistent liquid hydrogen to customers. This design increases plant reliability and availability while minimizing parasitic losses like heat leak and seal gas losses.

Cryogenic Equipment: Engineered equipment including trailers and mobile storage equipment for the distribution of liquefied hydrogen, oxygen, argon, nitrogen and other cryogenic gases.

GenSure: GenSure is our stationary fuel cell solution providing scalable, modular PEM fuel cell power to support applications on both a small and large power scale. For smaller applications, Plug’s Low Power GenSure supports backup and grid-support applications of the telecommunications, transportation, and utility sectors. Our High Power GenSure product line supports large scale stationary power, EV charging infrastructure, and data center markets.

Liquid Hydrogen: Liquid hydrogen provides an efficient fuel alternative to fossil-based energy. We produce liquid hydrogen at our production facilities in Tennessee, Georgia and Louisiana and through third-party supply arrangements, utilizing electrolyzer systems and liquefaction systems. Liquid hydrogen supply is used by customers in material handling operations, fuel cell electric vehicle fleets, and stationary power applications.

We provide our products and solutions worldwide through our direct sales force, and by leveraging relationships with original equipment manufacturers (“OEMs”) and their dealer networks. Plug is currently targeting Europe, Australia, North America and select international markets (including parts of Asia) for expansion in adoption of its hydrogen and electrolyzer solutions.

Currently, we manufacture and/or assemble our products at our manufacturing facilities in Slingerlands, New York; Rochester, New York; Houston, Texas; and Lafayette, Indiana; and have an expanded customer service center in Miamisburg, Ohio. In addition, we have hydrogen production plants in Charleston, Tennessee; Kingsland, Georgia; and St. Gabriel, Louisiana.

Results of Operations

Our primary sources of revenue are from sales of equipment, related infrastructure and other, services performed on fuel cell systems and related infrastructure, power purchase agreements, and fuel delivered to customers and related equipment. A certain portion of our sales result from acquisitions in legacy markets, which we are working to transition to renewable solutions. Revenue from sales of equipment, related infrastructure and other represents sales of our GenDrive units, GenSure stationary backup power units, cryogenic stationary and on road storage, hydrogen liquefaction systems, electrolyzers and hydrogen fueling infrastructure. Revenue from services performed on fuel cell systems and related infrastructure represents revenue earned on our service and maintenance contracts and sales of spare parts. Revenue from power purchase agreements primarily represent payments received from customers who make monthly payments to access the Company’s GenKey solution. Revenue associated with fuel delivered to customers and related equipment represents the sale of hydrogen to customers that has been purchased by the Company from a third party or generated at our hydrogen production plants.

Provision for Common Stock Warrants

On August 24, 2022, the Company issued to Amazon.com NV Investment Holdings LLC, a wholly owned subsidiary of Amazon (“Amazon”), a warrant (the “2022 Amazon Warrant”) to acquire up to 16,000,000 shares of the Company’s common stock, subject to certain vesting events, described in Note 10, “Stockholders’ Equity - Share-Based Consideration Payable to a Customer.”

In 2017, the Company issued a warrant to Walmart (the “2017 Walmart Warrant”) to purchase up to 55,286,696 shares of the Company’s common stock, subject to certain vesting events, described in Note 10, “Stockholders’ Equity - Share-Based Consideration Payable to a Customer.” The Company recorded a portion of the estimated fair value of the 2017 Walmart Warrant as a reduction of revenue based upon the projected number of shares of common stock expected to vest under the 2017 Walmart Warrant, the proportion of purchases by Walmart and their affiliates within the period relative to the aggregate purchase levels required for vesting of the 2017 Walmart Warrant, and the then-current fair value of the 2017 Walmart Warrant. On December 30, 2025, the Company entered into an agreement with Walmart in which Walmart agreed to forfeit all vested shares of the Company’s common stock related to the 2017 Walmart Warrant and the unvested portions of the 2017 Walmart Warrant were cancelled. Accordingly, no shares of common stock will become issuable by the Company in connection with the 2017 Walmart Warrant.

The amount of provision for the 2022 Amazon Warrant and 2017 Walmart Warrant recorded as a reduction of revenue during the three months ended March 31, 2026 and 2025, respectively, is shown in the table below (in thousands):

Net revenue, cost of revenue, gross profit/(loss) and gross margin/(loss) during the three months ended March 31, 2026 and 2025 were as follows (in thousands):

Net Revenue

Revenue – sales of equipment, related infrastructure and other. Revenue from sales of equipment, related infrastructure and other represents sales of our GenDrive units, GenSure stationary backup power units, cryogenic delivery and storage, hydrogen liquefaction systems, electrolyzers and hydrogen fueling infrastructure (referred to at the site level as hydrogen installations). Revenue from sales of equipment, related infrastructure and other for the three months ended March 31, 2026 increased $15.5 million, or 24.4%, to $79.0 million from $63.5 million for the three months ended March 31, 2025. Primarily contributing to the increase in revenue from sales of equipment, related infrastructure and other was an increase in revenue from sales of electrolyzers of $31.7 million due to volume, with 37 megawatt equivalent units sold during the three months ended March 31, 2026 compared to two megawatt equivalent units sold during the three months ended March 31, 2025. In addition, revenue from sales of hydrogen infrastructure increased $7.0 million due to volume, with three hydrogen site installations recognized during the three months ended March 31, 2026 compared to one site installation recognized during the three months ended March 31, 2025. Partially offsetting these increases in revenue, revenue from sales of cryogenic equipment and liquefiers decreased $17.9 million during the three months ended March 31, 2026 primarily due to volume, with 30 units sold during the three months ended March 31, 2026 compared to 66 units sold during the three months ended March 31, 2025, as well as product mix. Additionally, revenue from sales of fuel cell systems decreased $4.9 million primarily due to volume of GenDrive units sold, with 537 units sold during the three months ended March 31, 2026 compared to 848 units sold during the three months ended March 31, 2025.

Revenue – services performed on fuel cell systems and related infrastructure. Revenue from services performed on fuel cell systems and related infrastructure represents revenue earned on our service and maintenance contracts and sales of spare parts. Revenue from services performed on fuel cell systems and related infrastructure for the three months ended March 31, 2026 increased $5.1 million, or 30.2%, to $22.0 million from $16.9 million for the three months ended March 31, 2025. The increase in revenue from services performed on fuel cell systems and related infrastructure was primarily due to volume, with an increase of approximately 2,200 units in the average number of GenDrive units under maintenance contracts during the three months ended March 31, 2026 compared to the three months ended March 31, 2025, as well as increased pricing.

Revenue – power purchase agreements. Revenue from Power Purchase Agreements (“PPAs”) represents payments received from customers for power generated through the provision of equipment and service. Revenue from PPAs for the three months ended March 31, 2026 increased $3.1 million, or 13.3%, to $26.3 million from $23.2 million for the three months ended March 31, 2025. The increase in revenue from PPAs was primarily due to increases in pricing of our PPAs during the first quarter of 2025, which was fully realized during the first quarter of 2026. Included in the change described above, the provision for common stock warrants recorded as a reduction of revenue from PPAs decreased to $1.4 million during the three months ended March 31, 2026 compared to $2.1 million during the three months ended March 31, 2025.

Revenue – fuel delivered to customers and related equipment. Revenue from fuel delivered to customers and related equipment represents the sale of hydrogen that has been purchased by the Company from a third party or generated at our hydrogen production plants. Revenue from fuel delivered to customers and related equipment during the three months ended March 31, 2026 increased $6.3 million, or 21.5%, to $35.8 million from $29.5 million during the three months ended March 31, 2025. The increase in revenue was primarily due to an increase in the average selling price of fuel and an increase in customer fuel sites, with an average of 280 sites receiving delivery during the three months ended March 31, 2026 compared to an average of 248 sites receiving delivery during the three months ended March 31, 2025. Included in the change described above, the provision for common stock warrants recorded as a reduction of revenue from fuel delivered to customers and related equipment decreased to $1.5 million for the three months ended March 31, 2026 compared to $4.4 million for the three months ended March 31, 2025.

Cost of Revenue

Cost of revenue – sales of equipment, related infrastructure and other. Cost of revenue from sales of equipment, related infrastructure and other includes direct materials, labor costs, and allocated overhead costs related to the manufacture of our fuel cells such as GenDrive units and GenSure stationary back-up power units, cryogenic delivery and storage, hydrogen liquefaction systems, electrolyzers and hydrogen fueling infrastructure (referred to at the site level as hydrogen installations). Cost of revenue from sales of equipment, related infrastructure and other during the three months ended March 31, 2026 increased $10.7 million, or 14.4%, to $85.3 million from $74.6 million during the three months ended March 31, 2025. The increase to cost of revenue from sales of equipment, related infrastructure and other was primarily due to an increase in cost of revenue related to sales of electrolyzer stacks and systems and an increase in cost of revenue related to sales of hydrogen infrastructure during the three months ended March 31, 2026 primarily due to the increases in volume described above. Partially offsetting these increases, the cost of revenue related to sales of fuel cell systems and cost of revenue related to sales of cryogenic equipment and liquefiers decreased during the three months ended March 31, 2026 primarily due to the decreases in volume described above as well as decreased labor and overhead costs resulting from the Company’s restructuring activities. In addition, there was a decrease in cost of revenue related to a decrease in sales of engineered equipment. During the three months ended March 31, 2026, the Company recorded inventory valuation adjustments of $7.2 million compared to $7.7 million during the three months ended March 31, 2025. Gross loss decreased to (8.0%) for the three months ended March 31, 2026 compared to (17.4%) for the three months ended March 31, 2025. The decrease in gross loss was primarily due to the increases in volume from sales of electrolyzers and hydrogen infrastructure described above along with the corresponding decreased labor and overhead costs.

Cost of revenue – services performed on fuel cell systems and related infrastructure. Cost of revenue from services performed on fuel cell systems and related infrastructure includes the labor, material costs and allocated overhead costs incurred for our product service and hydrogen site maintenance contracts and spare parts. Cost of revenue from services performed on fuel cell systems and related infrastructure during the three months ended March 31, 2026 decreased $0.1 million, or 0.3%, to $14.4 million from $14.5 million during the three months ended March 31, 2025. The decrease in cost of revenue was primarily due to improved stack reliability and decreased labor and overhead costs, partially offset by the increase in volume of average number of GenDrive units described above. Gross margin increased to 34.4% for the three months ended March 31, 2026 compared to 14.3% for the three months ended March 31, 2025. The increase in gross margin was primarily due to improved stack reliability and decreased labor and overhead costs.

Cost of revenue – (benefit)/provision for loss contracts related to service. The Company recorded a benefit for loss contracts related to service of ($7.8) million during the three months ended March 31, 2026 compared to a provision for loss contracts related to service of $8.9 million during the three months ended March 31, 2025. The Company recorded a benefit primarily due to improved pricing structure as well as reductions in cost to service our GenDrive units due to improved stack reliability and increased labor utilization.

Cost of revenue – power purchase agreements. Cost of revenue from PPAs includes depreciation of assets utilized and service costs to fulfill PPA obligations and interest costs associated with certain financial institutions for leased equipment. Cost of revenue from PPAs during the three months ended March 31, 2026 decreased $9.8 million, or 19.6%, to $40.1 million from $49.9 million during the three months ended March 31, 2025. The decrease in cost during the three months ended March 31, 2026 was primarily due to improved stack reliability and decreased labor and overhead costs compared to the three months ended March 31, 2025. Gross loss decreased to (52.7%) during the three months ended March 31, 2026 compared to (115.1%) during the three months ended March 31, 2025. The decrease in gross loss was primarily due to improved pricing and the reduction in cost described above.

Cost of revenue – fuel delivered to customers and related equipment. Cost of revenue from fuel delivered to customers and related equipment represents the purchase of hydrogen from suppliers and internally produced hydrogen that is ultimately sold to customers. Cost of revenue from fuel delivered to customers during the three months ended March 31, 2026 decreased $6.5 million, or 10.9%, to $52.9 million from $59.4 million during the three months ended March 31, 2025. The decrease in cost of revenue was primarily due to a decrease in the average cost of purchased fuel during the three months ended March 31, 2026 compared to the three months ended March 31, 2025. Gross loss decreased to (47.8%) during the three months ended March 31, 2026 compared to (101.5%) during the three months ended March 31, 2025. The decrease in gross loss was primarily due to an increase in the average selling price of fuel, decreased cost of purchased fuel and an increase in internal fuel production, which inherently costs less than purchased fuel.

Expenses

Research and development. Research and development expenses include: materials to build development and prototype units, cash and non-cash stock compensation and benefits for the engineering and related staff, expenses for contract engineers, fees paid to consultants for services provided, materials and supplies consumed, facility related costs such as computer and network services, and other general overhead costs associated with our research and development activities. Research and development expense for the three months ended March 31, 2026 decreased $5.3 million, or 30.2%, to $12.1 million from $17.4 million for the three months ended March 31, 2025. The decrease was primarily due to headcount reductions resulting from the Company’s 2025 Restructuring Plan as well as a decrease in research and development project expenses.

Selling, general and administrative. Selling, general and administrative expenses include cash and non-cash stock compensation, benefits, amortization of intangible assets and related costs in support of our general corporate functions, including general management, finance and accounting, human resources, selling and marketing, information technology and legal services. Selling, general and administrative expenses for the three months ended March 31, 2026 decreased $10.6 million, or 13.2%, to $70.2 million from $80.8 million for the three months ended March 31, 2025. The decrease was primarily due to a decrease in contract termination fees, a decrease in professional fees and reductions to the Company’s depreciation and amortization expenses resulting from the Company’s impairment recorded during the fourth quarter of 2025.

Restructuring. Expenses related to restructuring activities for the three months ended March 31, 2026 decreased $15.8 million, or 91.7%, to $1.4 million from $17.2 million for the three months ended March 31, 2025. The decrease was due to lower severance and benefits expenses resulting from restructuring activities during the three months ended March 31, 2026, which impacted less employees than from restructuring activities during the three months ended March 31, 2025.

Impairment. Impairment for the three months ended March 31, 2026 increased $2.8 million, or 262.4%, to $3.9 million from $1.1 million for the three months ended March 31, 2025. The increase was primarily related to the Company recording a higher impairment charge on long-lived assets designated for internal use during the three months ended March 31, 2026.

Change in fair value of contingent consideration. The change in fair value of contingent consideration is related to earn-outs for the Joule Processing LLC (“Joule”) acquisition and Frames Holding B.V. (“Frames”) acquisition (prior period only). The change in fair value of contingent consideration for the three months ended March 31, 2026 and 2025 was $0.3 million and ($11.8) million, respectively.

Interest income. Interest income primarily consists of income generated by our investment holdings, restricted cash escrow accounts, and money market accounts. Interest income for the three months ended March 31, 2026 decreased $1.4 million compared to the three months ended March 31, 2025. The decrease was primarily due to the decrease in the Company’s average restricted cash balance during the first quarter of 2026.

Interest expense. Interest expense consists of interest expense related to our long-term debt, convertible debt instruments, obligations under finance leases and our finance obligations. Interest expense for the three months ended March 31, 2026 increased $5.9 million compared to the three months ended March 31, 2025. The increase was primarily due to interest expense incurred related to the 6.75% Convertible Senior Notes, which was entered into during the fourth quarter of 2025.

Other income, net. Other income, net primarily consists of gains and losses related to energy contracts and foreign currency transactions. Other income, net during the three months ended March 31, 2026 decreased to $1.1 million compared to $1.3 million during the three months ended March 31, 2025.

Gain/(loss) on extinguishment of convertible debt instruments and finance obligations. Gain/(loss) on extinguishment of convertible debt instruments and finance obligations consists of losses that arise from retirement of the Company’s convertible debt instruments and finance obligations before maturity. During the three months ended March 31, 2026 and 2025, the Company recorded a gain/(loss) on extinguishment of convertible debt instruments and finance obligations of $1.8 million and ($3.7) million, respectively. The gain on extinguishment of convertible debt instruments and finance obligations recorded during the three months ended March 31, 2026 was due to a gain on the extinguishment of a finance obligation.

Change in fair value of convertible debt instruments. Change in fair value of convertible debt instruments consists of gains/(losses) that arise from the changes in fair value of the Company’s convertible debt instruments. During the three months ended March 31, 2026, the Company recorded a change in fair value of convertible debt instruments of ($70.8) million compared to a change in fair value of convertible debt instruments of ($7.3) million for the three months ended March 31, 2025. The increase in losses on change in fair value of convertible debt instruments during the three months ended March 31, 2026 was primarily due to an increase in the Company’s common stock price, an increase in the Company’s volatility as well as a larger principal balance of the 6.75% Convertible Senior Notes compared to the principal balance of the Company’s convertible debt instruments held during the three months ended March 31, 2025.

Change in fair value of warrant liabilities. Change in fair value of warrant liabilities consists of gains/(losses) that arise from the changes in fair value of the Company’s $7.75 Warrants. During the three months ended March 31, 2026, the Company recorded a change in fair value of warrant liabilities of ($54.6) million primarily due to an increase in the Company’s common stock price and an increase in the Company’s stock price volatility compared to no change in fair value of warrant liabilities during the three months ended March 31, 2025, as the $7.75 Warrants were issued during the fourth quarter of 2025.

Loss on equity method investments. Loss on equity method investments consists of our interest in AccionaPlug S.L., which is our 50/50 joint venture with Acciona Generación Renovable, S.A. and Clean H2 Infra Fund. Prior to the fourth quarter of 2025, we also held a 49% interest in SK Plug Hyverse, our joint venture with SK Innovation Co., Ltd., successor in interest to SK E&S Co., Ltd. For the three months ended March 31, 2026, the Company recorded a loss of $0.5 million on equity method investments compared to a loss of $2.4 million for the three months ended March 31, 2025. The decrease in loss on equity method investments was primarily due to the Company not recognizing losses related to SK Plug Hyverse during the three months ended March 31, 2026 as the Company sold its entire 49% equity interest in SK Plug Hyverse during the fourth quarter of 2025.

Income Taxes

The Company recorded income tax expense of $41 thousand and $0 during the three months ended March 31, 2026 and 2025, respectively. The income tax expense for the three months ended March 31, 2026 was primarily attributable to current tax incurred in foreign jurisdictions. The Company has not changed its overall conclusion with respect to the need for a valuation allowance against its net deferred tax assets in the United States, which remain fully reserved. Except for a few service entities mainly in Europe, all deferred tax assets are offset by a full valuation allowance because it is more likely than not that the tax benefits of the net operating loss carryforwards and other deferred tax assets will not be realized. As of March 31, 2026, the Company’s Netherlands subsidiary maintains a full valuation allowance on its deferred tax assets that will not be realized.

Liquidity and Capital Resources

A summary of our consolidated sources and uses of cash, cash equivalents and restricted cash was as follows (in thousands):

Operating Activities

The net cash used in operating activities during the three months ended March 31, 2026 and 2025 was $150.0 million and $105.6 million, respectively. The increase in net cash used in operating activities was primarily due to an increase in cash used in prepaid expenses and other assets and accounts payable, accrued expenses, and other liabilities as well as an increase in payments of operating lease liabilities, net resulting from strategic buy-outs of the Company’s operating lease liabilities of $6.9 million during the first quarter of 2026. Those changes were partially offset by a decrease in cash used in inventory and deferred revenue and other contract liabilities as well as an increase in cash provided by accounts receivable.

Investing Activities

The net cash used in investing activities during the three months ended March 31, 2026 and 2025 was $8.5 million and $46.6 million, respectively. The decrease in net cash used in investing activities was primarily due to a decrease in purchases of property, plant and equipment.

Financing Activities

The net cash (used in)/provided by financing activities during the three months ended March 31, 2026 and 2025 was ($31.7) million and $193.2 million, respectively. The decrease from cash provided by financing activities to cash used in financing activities was primarily driven by a decrease in proceeds from public and private offerings as well as an increase in principal repayments of finance obligations and finance leases resulting from strategic buy-outs of the Company’s finance obligations and finance lease liabilities of $8.3 million during the first quarter of 2026. These activities were partially offset by a decrease in principal payments on convertible debt instruments.

Liquidity

The Company has continued to experience negative cash flows from operations and net losses. The Company incurred net losses of approximately $246.0 million and $196.9 million during the three months ended March 31, 2026 and 2025, respectively. As of March 31, 2026, the Company’s working capital was $734.1 million, which included unrestricted cash and cash equivalents of $223.2 million and current restricted cash of $183.7 million, and the Company had an accumulated deficit of $8.5 billion.

The Company’s primary sources of liquidity have historically included cash on hand, proceeds from equity and debt financings, and operating cash flows. The Company continues to evaluate opportunities to strengthen its balance sheet and enhance financial flexibility. As part of its ongoing initiatives to strengthen the balance sheet and enhance liquidity, the Company initiated an infrastructure optimization initiative as described in Note 29, “Subsequent Events,” of the notes to the Company’s consolidated financial statements in the 2025 Form 10-K. If completed as expected, the initiative is reasonably likely to improve the Company’s near-term liquidity position. However, the timing and ultimate magnitude of the impact will depend on execution, satisfaction of closing conditions, market conditions and other factors.

The future use of our available liquidity will be based upon the ongoing review of the funding needs of our businesses, the optimal allocation of our resources, and the timing of cash flow generation. To the extent that we desire to access alternative sources of capital, market conditions could adversely impact our ability to do so at that time and at terms favorable to the Company.

The Company has an “at-the-market” equity offering program with B. Riley Securities, Inc. (“B. Riley”) pursuant to which the Company may, from time to time, offer and sell through or to B. Riley, as sales agent or principal, shares of the Company’s common stock, having an aggregate gross sales price of up to $1.0 billion under a sales agreement. On August 15, 2025, the Company and B. Riley amended the “at-the-market” equity offering program to extend the term. The “at-the-market” equity offering program will terminate upon the earliest of (a) August 15, 2027, with respect to principal and agency transactions, (b) the sale of all shares of common stock under the program or (c) termination of the sales agreement. On September 29, 2025, the Company and B. Riley amended the “at-the-market” equity offering program to add Yorkville Securities, LLC (“Yorkville”) as an additional sales agent and/or principal through which the Company may offer and sell shares pursuant to the “at-the-market” equity offering program. As of March 31, 2026, the Company had $944.1 million of aggregate gross sales price of shares available to be sold under the “at-the-market” equity offering program.

The Company has also entered into a Standby Equity Purchase Agreement (the “SEPA”) with Yorkville, pursuant to which the Company has the right, at its option, to sell to Yorkville up to $1.0 billion in the aggregate gross sales price of its common stock, subject to certain limitations and conditions set forth therein. The Company has the right, but not the obligation, from time to time at its sole discretion to direct Yorkville to purchase directly from the Company up to $10.0 million in the aggregate gross sales price of its common stock on any trading day. The SEPA expires on February 10, 2027. During the three months ended March 31, 2026, the Company sold no shares of common stock pursuant to the SEPA.

The Company believes that its working capital, cash position and restricted cash to be released over the next 12 months, and amortization requirements of the Company’s finance obligations, together with other key assumptions, support the Company’s conclusion that it has sufficient capital to fund its on-going operations for a period of at least 12 months subsequent to the issuance of the accompanying unaudited interim condensed consolidated financial statements. Key assumptions are based on factors such as forecasted sales and costs, the Company’s right to direct B. Riley and Yorkville to purchase shares from the Company under the “at-the-market” equity offering program, and the Company’s right to direct Yorkville to purchase shares from the Company under the SEPA.

The Company’s significant obligations consisted of the following as of March 31, 2026:

(i) Operating and finance leases totaling $238.5 million and $24.8 million, respectively, of which $63.2 million and $10.1 million, respectively, are due within the next 12 months. These leases are primarily related to sale/leaseback agreements entered into with various financial institutions to facilitate the Company’s commercial transactions with key customers.

(ii) Finance obligations totaling $239.9 million, of which approximately $66.4 million is due within the next 12 months. Finance obligations consist primarily of debt associated with the sale of future revenues and failed sale/leaseback transactions.

(iii) Long-term debt totaling $1.7 million, of which $0.4 million is due within the next twelve months.

(iv) Convertible senior notes totaling $505.3 million, of which $2.5 million is due within the next twelve months. See Note 8, “Convertible Senior Notes,” for more details.

(v) Warrant liabilities totaling $107.0 million, of which none is expected to be due within the next twelve months. See Note 7, “Warrant Liabilities,” for more details.

(vi) Future payments under non-cancellable unconditional purchase obligations with a remaining term in excess of one year totaling $101.5 million, of which $34.5 million is due within the next 12 months. See Note 17, “Commitments and Contingencies,” for more details.

(vii) Contingent consideration with an estimated fair value of approximately $7.8 million, of which $0.6 million is due within the next 12 months. See Note 6, “Fair Value Measurements,” for more details.

Public and Private Offerings of Equity and Debt

$7.75 Warrants

On March 20, 2025, the Company sold 46,500,000 shares of its common stock, pre-funded warrants to purchase 138,930,464 shares of its common stock and warrants (the “Common Warrants”) to purchase 185,430,464 shares of its common stock in a registered direct offering pursuant to an underwriting agreement with several underwriters.

On October 8, 2025, the Company entered into a warrant exercise inducement agreement with the holder of the Common Warrants, whereby in consideration for exercising the 185,430,464 outstanding Common Warrants at the exercise price as set forth in the Common Warrants of $2.00 per share, the Company agreed to provide new Common Warrants to the holder to purchase up to 185,430,464 shares of the Company’s common stock at $7.75 per share (the “$7.75 Warrants”). In addition, under the warrant exercise inducement agreement, the holder was permitted to receive, upon exercise, in lieu of 154,430,464 common shares, new pre-funded warrants to purchase 154,430,464 shares of the Company’s common stock at $0.0001 per share.

The $7.75 Warrants contain a provision pursuant to which, upon a Change of Control (as defined in the $7.75 Warrants), the holder may elect to require the Company (or the successor entity) to purchase the warrant for cash equal to its Black-Scholes value (a “Change of Control Cash Election”). The Company has classified the $7.75 Warrants as a liability on the consolidated balance sheets because the Change of Control Cash Election represents a conditional obligation that could require the Company to settle the warrants in cash upon the occurrence of a Change of Control, which precludes equity classification under ASC 815, *Derivatives and Hedging (“*ASC 815”). The $7.75 Warrants became exercisable on February 28, 2026 and expire on March 20, 2028.

As of March 31, 2026 and December 31, 2025, the $7.75 Warrants were valued at $107.0 million and $52.3 million, respectively, using the following Black-Scholes assumptions:

The change in the carrying amount of the $7.75 Warrants during the three months ended March 31, 2026 was as follows (in thousands):

6.75% Convertible Senior Notes

On November 21, 2025, the Company issued $431.3 million aggregate principal amount of 6.75% convertible senior notes due December 1, 2033 (the “6.75% Convertible Senior Notes”), including the exercise in full of the initial purchasers’ option to purchase up to an additional $56.3 million principal amount of the notes. The notes were issued pursuant to an indenture, dated November 21, 2025 (the “Indenture”).

The notes are convertible at the option of the holders at any time prior to the close of business on the second scheduled trading day immediately preceding the maturity date. Upon conversion, the Company will pay or deliver, as the case may be, cash, shares of the Company’s common stock, or a combination of cash and shares of common stock, at the Company’s election, in the manner and subject to the terms and conditions provided in the Indenture; provided that unless and until the reserved share effective date occurs, the Company will settle conversion of notes solely with cash. There were no conversions of the 6.75% Convertible Senior Notes during the three months ended March 31, 2026. As of March 31, 2026, the Company was in compliance with all debt covenants associated with the 6.75% Convertible Senior Notes.

The change in the carrying amount of the 6.75% Convertible Senior Notes during the three months ended March 31, 2026 was as follows (in thousands):

The following table summarizes the total interest expense and effective interest rate related to the 6.75% Convertible Senior Notes during the three months ended March 31, 2026 (in thousands, except for the effective interest rate):

Restricted Cash

In connection with certain of the noted sale/leaseback agreements, cash of $328.0 million and $352.3 million was required to be restricted as security as of March 31, 2026 and December 31, 2025, respectively, which will be released over the lease term. As of March 31, 2026 and December 31, 2025, the Company also had bank guarantees backed by security deposits totaling $170.7 million and $193.1 million, respectively, of which $137.6 million and $159.6 million are security for the noted sale/leaseback agreements, respectively, and $33.1 million and $33.5 million are customs-related letters of credit and bank guarantees, respectively.

As of March 31, 2026 and December 31, 2025, the Company had $62.0 million held in escrow related to the construction of the Texas hydrogen production plant and the Company had $18.1 million and $18.0 million, respectively, held in escrow related to the construction of the Georgia hydrogen production plant.

Guarantee

On February 24, 2026, our joint venture, AccionaPlug S.L., entered into a subsidy agreement with the European Hydrogen Bank, which is managed by Instituto para la Diversificación y Ahorro de la Energía (“IDAE”), a Spanish governing body, to subsidize a renewable hydrogen production project in Spain. In connection with the subsidy agreement, AccionaPlug S.L. is required to meet certain performance targets. The Company has provided a guarantee of €7.5M which can be called by IDAE if the joint venture fails to meet its performance targets under the subsidy agreement. As of March 31, 2026, no payments related to this guarantee have been made by the Company, and the Company did not record a liability for this guarantee as the likelihood of the guarantee being called upon is remote.

Government Tax Credits

Section 48 Investment Tax Credit for Qualified Fuel Cell Properties of Energy Storage Technologies

As of March 31, 2026, the Company determined that it qualified for the Section 48 Investment Tax Credit (“ITC”) for Qualified Fuel Cell Properties of Energy Storage Technologies related to its hydrogen storage and liquefaction assets at its Louisiana hydrogen plant owned by Hidrogenii, the Company’s joint venture with Olin. A base rate credit of 6% is available to qualified energy storage property in the year that it is placed in-service, with availability of increased credit rates if the property qualifies. The Company determined that it qualified for a rate credit of 30%. As the ITC is considered a transferable tax credit, the Company accounts for it as a grant related to assets. Therefore, the ITC was recognized as a reduction to the Louisiana hydrogen production plant’s cost-basis, recognized within property, plant, and equipment, net in the unaudited interim condensed consolidated balance sheets, which will reduce future depreciation over the next 30 years. As of March 31, 2026, the balance of the ITC was $39.2 million and was recognized in prepaid expenses, tax credits, and other current assets in the unaudited interim condensed consolidated balance sheets.

Unconditional Purchase Obligations

The Company has entered into certain off–balance sheet commitments that require the future purchase of goods or services (“unconditional purchase obligations”). The Company’s unconditional purchase obligations primarily consist of supplier arrangements, take or pay contracts and service agreements. For certain vendors, the Company’s unconditional obligation to purchase a minimum quantity of raw materials at an agreed upon price is fixed and determinable; while certain other raw material costs will vary due to product forecasting and future economic conditions.

Future payments under non-cancellable unconditional purchase obligations with a remaining term in excess of one year as of March 31, 2026 were as follows (in thousands):

During 2025, the Company finalized the renegotiation of a supplier arrangement that previously contained minimum purchase requirements. As of March 31, 2026 and December 31, 2025, the Company had a remaining liability of $19.8 million and $27.2 million, respectively, which was recorded in contingent consideration, loss accrual for service contracts, and other current liabilities. During the three months ended March 31, 2026, the Company made payments of $6.8 million that reduced the liability.

Restructuring

In January 2026, the Company initiated reductions to its workforce (the “2026 Restructuring Plan”). We began executing the 2026 Restructuring Plan in January 2026 and expect the 2026 Restructuring Plan to be substantially completed in the second quarter of 2026, subject to local law and consultation requirements.

In March 2025, the Company announced initiatives to reduce its workforce, realign its manufacturing footprint and streamline its organization to enhance operational efficiency and improve overall liquidity (the “2025 Restructuring Plan”). We began executing the 2025 Restructuring Plan in March 2025 and it was effectively completed during the fourth quarter of 2025.

During the three months ended March 31, 2026 and 2025, the Company incurred $1.4 million and $17.2 million in restructuring costs, respectively, which were recorded in the restructuring financial statement line item in the unaudited interim condensed consolidated statements of operations. The following table reflects the category of restructuring charges incurred during the three months ended March 31, 2026 and 2025 (in thousands):

The accrued restructuring balances as of March 31, 2026 and December 31, 2025 were recorded in the accrued expenses financial statement line item in the unaudited interim condensed consolidated balance sheets. Accrued restructuring activities during the three months ended March 31, 2026 were as follows (in thousands):

As of March 31, 2026, total accrued expenses related to restructuring activities were comprised of $1.1 million of employee severance and benefit arrangements.

We estimate that we will incur future restructuring costs of $0.2 million related to employee severance and benefit arrangements during the second half of 2026. The actual timing and amount of such costs associated may differ from our current expectations and estimates and such differences may be material.

Extended Maintenance Contracts

On a quarterly basis, we evaluate any potential losses related to our extended maintenance contracts for sales of equipment, related infrastructure and other that have been sold. The following table shows the roll forward of balances in the accrual for loss contracts (in thousands):

Product Warranty Reserve

On a quarterly basis, we evaluate our product warranty reserve. The Company applies a failure rate based on product type on total products under warranty identified through a contract-by-contract review to determine its product warranty reserve liability. The Company’s product warranty reserve liability balance as of March 31, 2026 and December 31, 2025 was $22.8 million and $23.0 million, respectively.

Critical Accounting Estimates

The unaudited interim condensed consolidated financial statements of the Company have been prepared in conformity with U.S. generally accepted accounting principles, which require management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. On an on-going basis, we evaluate our estimates and judgments, including but not limited to those related to revenue recognition, valuation of inventories, valuation of long-lived assets, valuation of investments, valuation of convertible senior notes and long-term debt, accrual for service loss contracts, operating and finance leases, common stock warrants, stock-based compensation and contingencies. We base our estimates and judgments on historical experience and on various other factors and assumptions that are believed to be reasonable under the circumstances, the results of which form the basis for making judgments about (1) the carrying values of assets and liabilities and (2) the amount of revenue and expenses realized that are not readily apparent from other sources. Actual results may differ from these estimates under different assumptions or conditions.

We believe that the following are our most critical accounting estimates and assumptions the Company must make in the preparation of our unaudited interim condensed consolidated financial statements and related notes thereto.

There have been no changes in our critical accounting estimates from those reported in our 2025 Form 10-K.

Recent Accounting Pronouncements

Recently Adopted Accounting Guidance

In July 2025, Accounting Standards Update 2025-05 (“ASU 2025-05”), Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses for Accounts Receivable and Contract Assets, was issued to address challenges encountered when applying the guidance in Topic 326 to current accounts receivable and current contract assets arising from transactions accounted for under Topic 606. This standard introduces a practical expedient for entities that assumes that current conditions as of the balance sheet date do not change for the remaining life of the asset. This standard is effective for annual periods, including interim reporting periods within annual reporting periods, beginning after December 15, 2025 with early adoption permitted. The Company adopted this guidance on January 1, 2026, with no material effect on the Company’s financial position or results of operations.

In November 2024, ASU 2024-04, *Debt with Conversion and Other Options (“*ASU 2024-04”), was issued to improve the relevance and consistency in application of the induced conversion guidance in Subtopic 470-20. This standard is effective for annual periods beginning after December 15, 2025, including interim periods within those fiscal years. The Company adopted this guidance on January 1, 2026, with no material effect on the Company’s financial position or results of operations.

Recent Accounting Guidance Not Yet Effective

Other than the accounting standards mentioned in our 2025 Form 10-K, all issued but not yet effective accounting and reporting standards as of March 31, 2026 are either not applicable to the Company or are not expected to have a material impact on the Company.

There has been no material change from the information provided in the Company’s 2025 Form 10-K under the section titled Item 7A, “Quantitative and Qualitative Disclosures About Market Risk.”

Evaluation of Disclosure Controls and Procedures

We maintain disclosure controls and procedures that are designed to ensure that information required to be disclosed in our reports that we file or submit under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in SEC rules and forms, and that such information is accumulated and communicated to our management, including our Chief Executive Officer (our principal executive officer) and Chief Financial Officer (our principal financial officer), as appropriate, to allow for timely decisions regarding required disclosure.

Our management, with the participation of our Chief Executive Officer and Chief Financial Officer, has evaluated the effectiveness of our disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act), as of March 31, 2026. Based on such evaluation, our Chief Executive Officer and Chief Financial Officer have concluded that as of March 31, 2026, our disclosure controls and procedures were effective. We continue to review and document our disclosure controls and procedures, including our internal controls and procedures for financial reporting, and may from time to time make changes aimed at enhancing their effectiveness and to ensure that our systems evolve with our business.

Changes in Internal Control over Financial Reporting

There were no changes to the internal control over financial reporting of the Company identified in connection with the Company’s evaluation referred to above that occurred during the quarter ended March 31, 2026 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

In addition to the other information set forth in this Quarterly Report on Form 10-Q, you should carefully consider the risk factors that could materially affect the Company’s business, financial condition or future results discussed in the Company’s 2025 Form 10-K in Part I, Item 1A “Risk Factors.” The risks described in the 2025 Form 10-K are not the only risks that could affect the Company. Additional risks and uncertainties not currently known to us or that we currently deem to be immaterial may also materially adversely affect our business, financial condition and/or operating results in the future. As a supplement to the risk factors identified in the 2025 Form 10-K, below we have set forth an updated risk factor. Other than as provided below, there have been no material changes to the risk factors identified in the 2025 Form 10-K.

Disruptions to international shipping routes and regional instability, including in and around the Strait of Hormuz, may delay deliveries, increase costs, and adversely affect our ability to fulfill customer orders and recognize revenue.

We rely on global logistics, including shipping routes through the Middle East and other key transit networks, to deliver products to our customers. Disruptions affecting these supply chain routes, including geopolitical tensions, military activity, or other instability, may delay, restrict, or prevent the movement of goods, increase transit times, or significantly increase freight, insurance, and security costs. For example, we have experienced and may continue to experience delays in delivering customer orders due to disruptions in and around critical chokepoints such as the Strait of Hormuz. In response, we have utilized, and may continue to utilize, alternative logistics solutions, including overland transportation and rerouting through other ports, which has increased our logistics costs and extended delivery timelines. However, such alternatives may be limited, less reliable, more costly, or unavailable on commercially reasonable terms. They may also introduce additional risks, including damage to products, loss in transit, customs or border delays, and reduced visibility into shipment status.

These types of disruptions may impair our ability to fulfill customer orders in a timely manner, delay commissioning and installation, and defer revenue recognition and cash collections. In addition, we may incur incremental costs such as additional freight, storage, or contractual penalties, and we may be required to provide concessions or other accommodations to customers. Prolonged or severe disruptions could also result in order cancellations, reduced demand, or damage to customer relationships. If we are unable to effectively manage these logistics and transportation risks or adapt our supply chain and delivery methods in a timely and cost-effective manner, our business, financial condition, results of operations, and cash flows could be materially adversely affected.