Safe Harbor Statement
This communication contains forward-looking statements within the meaning of the Private Securities
Litigation Reform Act of 1995, including but not limited to statements regarding the number of GenDrive
and GenSys unit shipments expected for 2010 and our expectations for achieving profitability and
positive cash flow in 2012. 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, including, without limitation, the risk that pending orders will not result in
purchase orders, that unit orders will not ship, be installed and/or convert to revenue, in whole or in part;
Plug Power’s expectations regarding future financial performance; Plug Power’s ability to develop
commercially viable energy products; the cost and timing of developing Plug Power’s energy products;
market acceptance of Plug Power’s energy products; Plug Power’s ability to manufacture energy
products on a large-scale commercial basis; competitive factors, such as price competition and
competition from other traditional and alternative energy companies; the cost and availability of
components and parts for Plug Power’s energy products; Plug Power’s ability to establish 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 fuel and fueling infrastructures for Plug
Power’s energy products; Plug Power’s ability to protect its Intellectual Property; Plug Power’s ability to
lower the cost of its energy products and demonstrate their reliability; the cost of complying with current
and future governmental regulations; the impact of deregulation and restructuring of the electric utility
industry on demand for Plug Power’s energy products; 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, 2008, filed with the Securities and Exchange Commission (“SEC”) on March 16, 2009,
and the reports Plug Power files from time to time with the SEC. Plug Power does not intend to and
undertakes no duty to update the information contained in this communication.
