Registration is open for teams seeking to compete in the $1.5 million energy storage competition known as the Night Rover Challenge, sponsored by NASA and the Cleantech Open of Palo Alto, Calif.

To win, a team must demonstrate a stored-energy system that can power a simulated solar-powered exploration vehicle that can operate through multiple cycles of daylight and extended periods of darkness.  The winning system must exceed the performance of an existing state-of-the-art system by a predetermined margin and will be the one that has the highest energy-storage density.

The challenge is open to individuals, groups and companies working outside the traditional aerospace industry.  Registration closes on Oct. 25, 2013.  For information about the Night Rover Challenge and how to register a team, visit www.nightrover.org.