The sun is the source of most of our energy, but it is not the only source of energy.
According to new research from Duke University, the sun is not as clean as we think.
Solar energy sources include geothermal, wind and tidal.
In addition to the sun, we use the sun’s energy to generate electricity, as well as for heating and cooling.
Here are a few solar energy tips to help you use solar energy in your daily life.