Exhibit 99.1

Plug Power Third Quarter 2025 Highlights

$177 Million in Quarterly Revenue

Continued Global Market Expansion and Operational Progress

SLINGERLANDS, N.Y., November 10, 2025 - Plug Power Inc. (NASDAQ: PLUG), a global leader in comprehensive hydrogen solutions for the hydrogen economy, today announced its financial results and operational milestones for the third quarter ended September 30, 2025.

Third Quarter 2025 Financial Highlights

The definitions and reconciliation of Non-GAAP information and comparable GAAP information are included in the Reconciliation of Non-GAAP Financial Measures table below.

Reaffirming Strategic Focus

Plug continues to prioritize growth in its material handling, electrolyzer, and hydrogen fuel businesses. This disciplined execution strengthens near-term performance and positions the Company to scale into new markets in the future, such as large-scale stationary power and mobility.

As announced in October, Plug named Jose Luis Crespo as incoming Chief Executive Officer, succeeding long-term leader Andy Marsh. This planned transition reflects the Company’s evolution into a globally scaled energy technology business and positions Plug for its next phase of disciplined growth.

“Plug continues to execute, follow through on its commitments, and prove the viability of hydrogen at scale,” said Andy Marsh, CEO of Plug Power. “We’re seeing real adoption, real projects, and real performance, and we’re still only getting started.”

“This was a strong quarter that demonstrates Plug’s global growth and commercial traction,” said Jose Luis Crespo, President and Incoming CEO. “Our revenue performance reflects accelerating customer adoption and sets a solid foundation to meet our year-end goals as we continue driving the hydrogen economy forward.”

Operational and Strategic Highlights for the Quarter

During the quarter, Plug executed its strategic priorities by advancing deployments, expanding customer adoption, and driving operational improvements across its core businesses.

GenEco Electrolyzers

GenDrive Fuel Cells

Hydrogen Fuel Production

Plug will provide further insight into its strategy, operational execution, and path to profitability during its 7th annual Plug Symposium on November 18. Investors and stakeholders are encouraged to register to stream the event and hear directly from Company leadership and customers. Register for the digital event at https://event.on24.com/wcc/r/5070165/A1DAC0191D73E6E705452AA4D133B5D8.

Earnings Call Details

Management will host a conference call to discuss results and business outlook.

Date: November 10, 2025
Time: 4:30 PM ET
Toll-Free: 877-407-9221 | International: +1 201-689-8597
Direct Webcast: https://event.webcasts.com/starthere.jsp?ei=1739626&tp_key=c156bc1626

A live webcast will be available on the Plug Investor Relations website at www.ir.plugpower.com, and a playback will remain available online following the call.

About Plug

Plug Power is building the global hydrogen economy with a fully integrated ecosystem spanning production, storage, delivery, and power generation. A first mover in the industry, Plug Power provides electrolyzers, liquid hydrogen, fuel cell systems, storage tanks, and fueling infrastructure to industries such as material handling, industrial applications and energy producers—advancing energy independence and decarbonization at scale.

With electrolyzers deployed across five continents, Plug Power leads in hydrogen production, delivering large-scale projects that redefine industrial power. The company has deployed over 72,000 fuel cell systems and 275 fueling stations and is the largest user of liquid hydrogen. Plug Power is rapidly expanding its generation network to ensure a reliable, domestically produced hydrogen supply. With plants operational in Georgia, Tennessee, and Louisiana, Plug Power’s total production capacity is now 40 tons per day.

Plug Power supports global leaders like Walmart, Amazon, Home Depot, BMW, and BP through its talented workforce and state-of-the-art manufacturing facilities around the world.

For more information, visit www.plugpower.com.

Forward-Looking Statements

This communication contains “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995 that involve significant risks and uncertainties about Plug, including but not limited to statements about Project Quantum Leap and the anticipated benefits from the implementation of such initiative; Plug’s expectations regarding its financial profile and market outlook, including expected timing to achieve its EBITDAS-positive target; Plug’s ability to deliver on its business and strategic objectives, including its expectations regarding its near-term performance and ability to scale into new markets; Plug’s expectations regarding its hydrogen production network and its ability to leverage its platform and reduce third-party fuel costs; Plug’s statements regarding the Company’s expectations for liquidity improvement, its plans to monetize assets and reallocate capital toward higher-return opportunities; expectations regarding its future participation in the Department of Energy loan program; and the timing and magnitude of anticipated cost reductions and cash-flow improvements.

You are cautioned that such statements should not be read as a guarantee of future performance or results as such statements are subject to risks and uncertainties. Actual performance or results may differ materially from those expressed in these statements as a result of various factors, including, but not limited to, the following: the anticipated benefits and actual savings and costs resulting from Project Quantum Leap; the non-binding nature of the letter of intent with the project developer; the risk that Plug’s ability to achieve its business objectives and to continue to meet its obligations is dependent upon its ability to maintain a certain level of liquidity, which will depend in part on its ability to manage its cash flows; the risk of suspending activities related to the Department of Energy loan program; the risk that Plug may continue to incur losses and might never achieve or maintain profitability; the risk that Plug may not be successful in its financing initiatives and not have sufficient capital to continue its operations; the risk that Plug may not be able to expand its business or manage its future growth effectively; the risk that global economic uncertainty, including inflationary pressures, fluctuating interest rates, currency fluctuations, increase in tariffs, supply chain disruptions, changes in the hydrogen or energy markets or regulatory developments, may adversely affect Plug’s operating results; the risk that Plug may not be able to obtain from its hydrogen suppliers a sufficient supply of hydrogen at competitive prices or the risk that Plug may not be able to produce hydrogen internally at competitive prices; the risk that delays in or not completing its product and project development goals may adversely affect its revenue and profitability; the risk that its estimated future revenue may not be indicative of actual future revenue or profitability; the risk of elimination, nonrenewal, reduction of, or changes in qualifying criteria for government subsidies and economic incentives for alternative energy products, including Plug’s qualification to utilize the PTC and ITC; the risk that volatility in commodity prices and product shortages may adversely affect Plug’s gross margins and financial results; and the risk that Plug may not be able to manufacture and market products on a profitable and large-scale commercial basis. For a further description of the risks and uncertainties that could cause actual results to differ from those expressed in these forward-looking statements, as well as risks relating to the business of Plug in general, see Plug’s public filings with the Securities and Exchange Commission, including the “Risk Factors” section of Plug’s Annual Report on Form 10-K for the year ended December 31, 2024, Plug’s Quarterly Reports on Form 10-Q for the quarters ended March 31, 2025 and June 30, 2025, as well as any subsequent filings. Readers are cautioned not to place undue reliance on these forward-looking statements. The forward-looking statements are made as of the date hereof and are based on current expectations, estimates, forecasts and projections as well as the beliefs and assumptions of management. Plug disclaims any obligation to update forward-looking statements except as may be required by law.

Plug Power Inc. and Subsidiaries

Condensed Consolidated Balance Sheets

(In thousands, except share and per share amounts)

(Unaudited)

Plug Power Inc. and Subsidiaries

Condensed Consolidated Statements of Operations

 (In thousands, except share and per share amounts)

(Unaudited)

Plug Power Inc. and Subsidiaries

Condensed Consolidated Statements of Cash Flows

(In thousands)

(Unaudited)

Plug Power Inc. and Subsidiaries

Reconciliation of Non-GAAP Financial Measures

(In thousands, except per share amounts)

(Unaudited)

Explanatory Notes on Use of Non-GAAP Measures

To supplement the Company’s unaudited financial data presented on a generally accepted accounting principles (GAAP) basis, management has used adjusted gross loss and adjusted basic and diluted net loss per share attributable to Plug Power Inc., which are non-GAAP performance-based measures. These non-GAAP measures are among the indicators management uses as a basis for evaluating the Company’s financial performance as well as for forecasting future periods. Management establishes performance targets, annual budgets and makes operating decisions based in part upon these metrics. Accordingly, disclosure of these non-GAAP measures provides investors with the same information that management uses to understand the Company’s economic performance year over year. In addition, the Company believes these non-GAAP financial measures improve understanding of comparable information from past reports of financial results.

Adjusted gross loss and adjusted basic and diluted net loss per share attributable to Plug Power Inc. should not be considered as an alternative to net income or any other performance measure derived in accordance with GAAP, or as an alternative to cash flows from operating activities as a measure of our liquidity. Adjusted gross loss is defined as gross loss adjusted for lower of cost or net realizable value inventory adjustments, provision for excess and obsolete inventory, and product warranty expense. Adjusted basic and diluted net loss per share attributable to Plug Power Inc. is defined as the basic and diluted attributable to Plug Power Inc. adjusted for impairment, restructuring, supplier contract modification, bad debt, product warranty expense, and lower of cost or net realizable value inventory adjustments, and provision for excess and obsolete inventory, net of the estimated tax effect of these adjustments and any anticipated tax valuation adjustments. The adjustments made to the basic and diluted earnings per share have no income tax effect in light of the Company’s full valuation allowance recorded on their deferred tax assets. While management believes that the non-GAAP financial measures provide useful supplemental information to investors, there are limitations associated with the use of these measures. The measures are not prepared in accordance with GAAP and may not be directly comparable to similarly titled measures of other companies due to potential differences in the exact method of calculation.  The Company’s non-GAAP financial measures are not meant to be considered in isolation or as a substitute for comparable GAAP financial measures and should be read only in conjunction with the Company’s consolidated financial statements prepared in accordance with GAAP.

In addition, the Company’s EBITDAS-positive target for the second half of 2026 is a forward-looking non-GAAP financial measure that cannot be reconciled to the most directly comparable GAAP measure, net income (loss), without unreasonable effort. The Company defines EBITDAS as earnings before interest, income tax, depreciation, amortization and share-based expense. This is because the Company is not able to forecast with reasonable accuracy certain items required for such reconciliation, including changes in fair value of derivatives, interest expense associated with financial arrangements, income taxes, and other non-cash or infrequent charges.  These items are inherently uncertain, depends on future events outside of management’s control, and could materially affect the Company’s GAAP results.  The Company provides this target to give investors insight into the direction of its operational objectives rather than as a prediction of GAAP earnings.