The goal is to reduce the weight of the batteries used to power all of the electronic equipment -- radios, night vision devices, global positioning system, etc. -- carried by the modern foot-soldier, or "warfighter."
What you need to invent
The prize objective is a wearable, prototype system that can power a standard warfighters equipment for 96 hours but weighs less than half that of the current batteries carried. All components, including the power generator, electrical storage, control electronics, connectors and fuel must weigh four kilograms (about 8.8 pounds) or less, including any attachments. The top three competitors that demonstrate a complete, wearable system that produces 20 watts average power for 96 hours but weighs less than 4 kilograms (~8.8 lbs) will win the prizes.
A public information forum will be held in September in the Washington, D.C. area to brief potential competitors on the technical details, the competition rules, and qualification requirements. Competitors must register to participate in the prize program by Nov. 30, 2007. The competition is open for international participation; however the individual or team leader must provide proof of U.S. citizenship. Details on the forum, as well as contest registration and rules are posted on the Defense Research and Engineering Prize Web site.

