Photovoltaic (PV) cells that convert sunlight into electricity are one innovative solution to harness renewable energy. When sunlight hits the PV cell, it is absorbed by a semiconductor material, usually silicon. The energy from the light knocks electrons loose from atoms, creating a flow of electric current. This current is then captured and can be used to power electrical devices. A common misconception is that, at night, PV cells store energy like a battery. In fact, they convert sunlight into electricity in real time, to store energy, a separate energy storage system, like a battery, is required. Researchers are also developing what are called moonlight solar panels, which can generate electricity at night, during rain, and under overcast skies. They make renewable energy a more viable option in diverse environments.
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