Solar panels are devices that convert sunlight into electricity. They are made up of many small units called solar cells, usually made from silicon. When sunlight hits these cells, it creates an electric current — this process is called the photovoltaic effect.

Solar panels are commonly used on rooftops of homes and buildings, and also in large solar farms. They help reduce electricity bills and are a clean, renewable energy source, meaning they don’t produce pollution or harm the environment.

Using solar panels is a great way to reduce dependence on fossil fuels and help fight climate change.