The convention entitled "Re-Energizing America" runs Monday through Thursday at John Ascuaga's Nugget in Sparks. It will include workshops intended to help businesses access more than $2 billion in federal grants and contracts for energy-efficient technologies.

The sponsors and exhibitors include Boeing, Lockheed Martin, NASA, the Desert Research Institute, Nevada Commission on Economic Development and the U.S. Departments of Defense, Energy and Homeland Security.

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