The Pentagon has also expressed interest, the entrepreneur added. "And then we've been approached by a number of wealthy people that want to fly from their lake house to the city and also off of their yachts."

Zeva Aero aims to ultimately put a sustainable air vehicle in every garage. The likely price tag of around $250,000 excludes most commuters for now, but Gurbir Singh, Zeva Aero's chief technology officer, is optimistic.

"As the battery technology continues to improve, this craft is only going to get better and be able to do more and more things as we go ahead," he said.

(With inputs from agencies)