(PLUG) Completes Acquisition of HyPulsion Joint Venture in Europe

Plug Power Now Poised to Convert $20 Billion European Electric Lift Truck Market to Hydrogen Fuel Cells

LATHAM, N.Y., July 31, 2015  — Plug Power Inc. (NASDAQ:PLUG), a leader in providing clean, reliable energy solutions, announced it has completed the previously announced acquisition of HyPulsion, the European joint venture created by Plug Power and Axane, S.A., a subsidiary of Air Liquide S.A. in 2012. Effective immediately, Plug Power will assume all responsibilities for the development, engineering, sales and marketing efforts in Europe for its GenFuel hydrogen and GenDrive fuel cell product lines and corresponding GenCare services.

Plug Power will offer its CE-certified GenDrive products to European lift truck customers in the $20 billion European electric lift truck market. For the short-term, Plug Power will continue to develop, engineer, and manufacture all products in the United States with a sales and service force in Europe.

Air Liquide will remain a strategic hydrogen production partner to Plug Power, acting as a hydrogen supplier to Plug Power’s material handling customers. Additionally, Air Liquide will continue to represent a seat on Plug Power’s board of directors, a position held since 2012.

“Plug Power is ready to move in Europe,” said Andy Marsh, CEO of Plug Power. “Our success with customers like BMW and Volkswagen has helped open doors in Europe, a $20 billion market where customers have a strong mandate for cleaner, more productive distribution centers and where Plug Power has an impressive head start on our competitors.”

About Plug Power Inc.

The powerhouse in hydrogen fuel cell technology, Plug Power is revolutionizing the industry with cost-effective solutions that increase productivity, lower operating costs and reduce carbon footprint. Its signature solution, GenKey, provides an all-inclusive package for customers, incorporating GenFuel hydrogen and fueling infrastructure, GenCare aftermarket service and either GenDrive or ReliOn fuel cell systems. GenDrive, a lead-acid battery replacement, is used in electric lift trucks in high-throughput material handling applications. With more than 7,000 GenDrive units deployed with material handling customers, GenDrive has been proven reliable with over 100 million hours of runtime. Plug Power manufactures tomorrow’s incumbent power solutions today, so customers can POWERAhead. Additional information about the Plug Power brands is available at www.plugpower.com.

Plug Power Inc. Safe Harbor Statement

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 Power Inc. (“PLUG”), including but not limited to statements about expansion into and growth in the European hydrogen and fuel cell market. You are cautioned that such statements should not be read as a guarantee of future performance or results, and will not necessarily be accurate indications of the times at, or by which, such performance or results will have been achieved. Such statements are subject to risks and uncertainties that could cause actual performance or results to differ materially from those expressed in these statements. In particular, the risks and uncertainties include, among other things, the risk that we continue to incur losses and might never achieve or maintain profitability; the risk that we will need to raise additional capital to fund our operations and such capital may not be available to us; the risk that our lack of extensive experience in manufacturing and marketing products may impact our ability to manufacture and market products on a profitable and large-scale commercial basis; the risk that unit orders will not ship, be installed and/or converted to revenue, in whole or in part; the risk that pending orders may not convert to purchase orders, in whole or in part; the risk that a loss of one or more of our major customers could result in a material adverse effect on our financial condition; the risk that a sale of a significant number of shares of stock could depress the market price of our common stock; the risk that negative publicity related to our business or stock could result in a negative impact on our stock value and profitability; the risk of potential losses related to any product liability claims or contract disputes; the risk of loss related to an inability to maintain an effective system of internal controls or key personnel; the risks related to use of flammable fuels in our products; the cost and timing of developing, marketing and selling our products and our ability to raise the necessary capital to fund such costs; the ability to achieve the forecasted gross margin on the sale of our products; the risk that our actual net cash used for operating expenses may exceed the projected net cash for operating expenses; the cost and availability of fuel and fueling infrastructures for our products; market acceptance of our products, including GenDrive, ReliOn and GenKey systems; the volatility of our stock price; our ability to establish and maintain relationships with third parties with respect to product development, manufacturing, distribution and servicing and the supply of key product components; the cost and availability of components and parts for our products; our ability to develop commercially viable products; our ability to reduce product and manufacturing costs; our ability to successfully expand our product lines; our ability to successfully expand internationally; our ability to improve system reliability for our GenDrive, ReliOn and GenKey systems; competitive factors, such as price competition and competition from other traditional and alternative energy companies; our ability to protect our intellectual property; the cost of complying with current and future federal, state and international governmental regulations; risks associated with potential future acquisitions; and other risks and uncertainties referenced in our public filings with the Securities and Exchange Commission. For additional disclosure regarding these and other risks faced by PLUG, see disclosures contained in PLUG’s public filings with the Securities and Exchange Commission (the “SEC”) including, the “Risk Factors” section of PLUG’s Annual Report on Form 10-K for the year ended December 31, 2014. You should consider these factors in evaluating the forward-looking statements included in this presentation and not place undue reliance on such statements. The forward-looking statements are made as of the date hereof, and PLUG undertakes no obligation to update such statements as a result of new information.

CONTACT: Plug Power Media Contact
         Teal Vivacqua
         518.738.0269
         media@plugpower.com