1. Solar panels absorb the sunlight as a source of energy to generate electricity or heat.
2. A solar panel is a flat construction resembling a window, built with technology that allows it to passively harvest the heat of the sun or create electricity from its energy through photovoltaics.
PV, Solar cell
https://en.wikipedia.org/wiki/Solar_panel (1.); http://whatis.techtarget.com/definition/solar-panel (2.)
Author: Alexander Kravchik