It is known that sunlight transports much energy, which is abundantly and freely available with some variations from one geographical region to the other. Moreover, there is some seasonal variation from summer to winter months within a given geography. Hence, there is a huge surge of activity in the field of solar energy in the entire planet, and this source of energy is renewable. Some perspectives of renewable energy as well as some aspects of solar power plants were discussed in brief in a previous paper in Kanch. Then, some details were given in terms of a brief perspective in Part 1 of an article on "photovoltaic effect and solar energy." Some further aspects on the science behind solar energy production are described here, Part 2 of this article.
