Photovoltaic panels

Photovoltaic panels consist of many solar cells, these are made of materials like silicon, one of the most common elements on earth.
The individual cell is designed with a positive and a negative layer to create an electric field just like in a battery.
As photons are absorbed in the cell their energy causes electrons to become free. The electrons move toward the bottom of the cell and exit through the connecting wire. This flow of electrons is what we call electricity.
By combining solar cells in photovoltaic panels we can produce just the right amount of electricity to perform a specific job no matter how large or small.