How photovoltaics work
C21e solar electric tile systems are designed to be grid connected. Surplus energy is exported via the grid and sold back to the utility company. In the night electricity is bought from the utility in the normal way.
This video explains how our C21e solar electric tiles and our C21t solar thermal tiles work:
This animation demostrates how the solar electric tiles work through the day, click on the grey buttons at the bottom to learn more:
