Sameer, extracting water from air has not gained popularity but I think its not such a bad idea after all. It won’t help in dry areas, but there are many places with high humidity, which can make use of this otherwise wasted humid air. Power requirement is certainly one major concern.

Which is exactly why I still am not convinced about the whole idea of using a solar panel for an water extracting machine. producing 300 Watts of power constantly will not be a very easy task with solar panels, but let us see where this leads us to...