We have solar panels in our houses. All the electric appliance in our house are run by electricity from, for example, the solar panels. Energy transformation occurs while we are watching TV by means of solar panels. And this energy is safe for environment.
Solar panels are device which can absorb light energy and transform it into electrical energy. Solar panels absorb the sunlight and transform it into electrical energy that is used by the electrical devices of our house. While watching TV, that electrical energy is transformed into light and sound energy. So, the light energy from sun in transformed into electrical energy, then into light and sound energy.
Unlike fossil fuel, the energy production by solar panels does not create any smoke or harmful gases. While energy production by solar panel, no extra product is produced, which can harm the environment. Therefore, solar panels are safe source of energy.