Solar energy is a sustainable resource on earth, meaning it doesn’t run out, the supply can be maintained. Solar energy means using the energy of sunlight to provide electricity, to heat water, and to heat or cool homes, businesses or industry .To harvest the solar energy, the most common way is to use solar panels.

A solar panel (photovoltaic module or photovoltaic panel) is a packaged interconnected assembly of solar cells, also known as photovoltaic cells. Solar panels generate free power from the sun by converting sunlight to electricity with no moving parts, zero emissions, and no maintenance. The solar panel can be used as a component of a larger photovoltaic system to generate and supply electricity in commercial and residential applications.

Most solar panels are currently produced from silicon PV cells. These are typically categorized into either monocrystalline silicon solar panel or polycrystalline silicon solar panel.