A Solar panel is assembled through the joining of unified solar cells, which are also known as photovoltaic cells. Photovoltaic cells are required for the phase where an electrical device converts the light energy into electricity, which they do via the use of the photovoltaic effect. Photovoltaic is field of research related to the process of photovoltaic cells producing light energy from sunlight, which can then be converted to electrical energy.

The assembly of photovoltaic cells to make solar modules, which can effectively capture the energy of the sunlight, isthen called solar panels, which in turn generate energy which is called solar power. Solar energy primarily uses light and heat from the sun, which we have used since ancient times, but never as efficiently and on such a large scale as now.