Photovoltaic Cells

Spanish Version

Nowadays it is essential to save energy, and what better way than using renewable sources such as the energy from the Sun. In the video below we explain how photovoltaic cells, very widespread today, work.

In the video, Juan begins explaining the theory concerning photovoltaic cells: a semiconductor material that, when struck by photons of light, releases electrons, which generate electricity. Then he shows us a small fan connected to a photovoltaic cell, which reaches to rotate really fast.
Although still somewhat expensive, its price has fallen significantly in recent years, making helping to maintain our planet increasingly easier .