The solar panels can be reused at night. The heliostat mirrors "can also be programmed to track other objects and that means [...] he created conditions suitable for asteroid detection."

Traditionally, asteroids are spotted using full-fledged optical telescopes that capture time-lapse images of the sky over minutes or hours, with the telescope synchronized to track the stars. In these long exposures, stars appear as points of light. But if an asteroid is present, it appears as a streak, allowing astronomers to determine its existence, distance, size, and orbit.

But telescopes are finite and they can't track so many asteriods.

These solar panels could be a solution.