Solar Energy in aircrafts?

The truth is, planes may never be able to carry passengers if they are run solely off of solar energy. Planes take enormous amounts of energy to fly, and solar power may not be enough. As of now, most solar-run aircrafts are used for surveilling only (Nasr, para. 4).

http://science.howstuffworks.com/environmental/green-tech/sustainable/solar- aircraft4.htm

If you thought that having a solar powered car was cool, then you will love the idea of a solar powered plane! The plane, much like the car, is more of a concept with no real big production- the reasons being is that you can't really put a lot of people on these planes. It may not look like it, but the plane showed above is very thin. This being the case, it cannot have too much weight to carry. The wings are covered all across with solar panels to power the motors. Another major flaw of solar powered planes is cost, which can be in the millions.
Below I have a link to a video of the plane in the picture above making its journey across the United States!
https://www.youtube.com/watch?v=hI4VQux3qIo