What is solar energy and how can we use it for our needs?

In this topic I would like to briefly tell you all about solar energy. 

Everybody knows that the Sun is the most important source of energy on Earth. It is necessary for all living organisms existing on our planet. Sunlight reaches every part of our planet and the amount of sunlight greatly depends on the location or season. Solar companies have learnt how to use photovoltaic (PV) processes, catching the energy and turning it into more practical forms.