The American Recovery and Reinvestment Act of 2009 appropriated nearly $800 billion to stimulate the U.S. economy out of recession. Included in the Recovery Act is billions of dollars for cleantech, including $16.8 billion for the Department of Energy's Office of Energy Efficiency and Renewable Energy. Approximately $2.5 billion was allocated to support research, development and deployment activities. These are significant opportunities for companies involved with developing new clean technologies. However, companies should be aware of strings attached to these new funding opportunities.