FAQs about Solar Energy

3. How do solar panels work?

A photovoltaic solar panel is made up of numerous solar cells or small cells, usually crystalline silicon. It is a system of semiconductors that can behave as conductors of electricity or as insulators. One part has too many electrons and the other missing them. When sunlight, composed of photons, hits the photovoltaic cells of the plate, a direct electric current flow is created between the layers that is then converted into alternating current by an inverter. Once generated the electricity is stored in banks of batteries to be used at any time. If the surplus exceeds the capacity of the battery, it is sold to the power grid. If at any time the electricity is exhausted it can be bought from the network.

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