(PLUG) Milestone Order From Walmart for Multi-Site Hydrogen Fuel Cell Deployment

Deal Will Utilize Plug Power’s New GenKey Solution That Provides Fuel Cells, Hydrogen, Fuel Infrastructure and Maintenance Service

LATHAM, N.Y., Feb. 26, 2014  — Plug Power Inc. (Nasdaq:PLUG) today confirms the company has received a multi-site GenKey purchase order from Walmart Stores, Inc. to roll out its hydrogen fuel cell solution to power electric lift truck fleets at six North America distribution centers. The first of six sites will be deployed by the second quarter of 2014.

Further purchase order terms for the multi-site order initially announced on February 10, 2014 include:

• Total of 1,738 GenDrive fuel cell units, to be deployed over two years
• GenFuel infrastructure construction and hydrogen fuel supply
• Six-year GenCare service contract for each site

GenDrive hydrogen fuel cells have universal appeal in material handling applications because they can contribute to an increase in productivity. Workers spend less time fueling a forklift truck as compared to changing a lead-acid battery, resulting in less downtime. GenDrive fuel cells also have no exhaust emissions so that they can be a component in implementing corporate environmental initiatives.

“We are pleased with the performance of the hydrogen fuel cells that we have been operating and are excited to expand our program with Plug Power,” said Jeff Smith, Senior Director for Walmart Logistics.

“This agreement is a tripling of Walmart’s commitment to Plug Power’s fuel cells, and is encouraging because it comes from a company with so much experience using our product,” said Andy Marsh, CEO at Plug Power. “This is a milestone for Plug Power and its ongoing business relationship with Walmart. Plug Power’s GenDrive products have a positive impact on the productivity of our customer’s operations. We have proven to be a trusted partner and are confident that GenKey will enhance Walmart’s material handling operations.”

Walmart currently has 535 GenDrive fuel cell units in operation at sustainable refrigerated distribution centers, including two sites in Canada and one in the United States. Specifically, Walmart’s Balzac, Canada, fresh food distribution center is the most energy-efficient distribution facility of its kind in North America. Additionally, the Walmart Washington Courthouse distribution center in Ohio was the launching point of the GenFuel business.

About Plug Power Inc.

The architects of modern fuel cell technology, Plug Power is revolutionizing the industry with cost-effective power solutions that increase productivity, lower operating costs and reduce carbon footprints. Long-standing relationships with industry leaders, including Walmart, Sysco, Procter & Gamble, and Mercedes Benz, forged the path for Plug Power’s innovative GenKey hydrogen and fuel cell system solutions. With more than 4,500 GenDrive units deployed to material handling customers, accumulating over 20 million hours of runtime, Plug Power manufactures tomorrow’s incumbent power solutions today. Additional information about Plug Power is available at www.plugpower.com.

Plug Power Inc. Safe Harbor Statement

This communication contains statements that are not historical facts and are considered forward-looking within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934, including but not limited to statements regarding our expectations regarding the timing and rollout of the new GenKey contract, the performance of our GenKey offering and the expansion into new markets. These forward-looking statements contain projections of our future results of operations or of our financial position or state other forward-looking information. We believe that it is important to communicate our future expectations to our investors. However, there may be events in the future that we are not able to accurately predict or control and that may cause our actual results to differ materially from the expectations we describe in our forward-looking statements. Investors are cautioned not to unduly rely on forward-looking statements because they involve risks and uncertainties, and actual results may differ materially from those discussed as a result of various factors, including, but not limited to: the risk that we continue to incur losses and might never achieve or maintain profitability, the risk that we may need to raise additional capital to fund our operations and such capital may not be available to us; the risk that we may not have enough cash to fund our operations to profitability and if we are unable to secure additional capital, we may need to reduce and/or cease our operations; the risk that a “going concern” opinion from our auditors, KPMG LLP, could impair our ability to finance its operations through the sale of equity, incurring debt, or other financing alternatives; 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; the risk that pending orders may not convert to purchase orders; the risk that we fail to comply with NASDAQ’s listing standards which may result in our common stock being delisted from the NASDAQ stock market, which may severely limit our ability to raise additional capital; 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 exceeds our projected net cash for operating expenses; the cost and availability of fuel and fueling infrastructures for our products; market acceptance of our GenDrive systems; 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 improve system reliability for our GenDrive 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; and other risks and uncertainties discussed under “Item IA—Risk Factors” in Plug Power’s annual report on Form 10-K for the fiscal year ended December 31, 2012, filed with the Securities and Exchange Commission (“SEC”) on April 1, 2013 and as amended on April 30, 2013 and the reports Plug Power filed from time to time with the SEC. These forward-looking statements speak only as of the date on which the statements were made and are not guarantees of future performance. 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 communication.

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