Solar energy works by capturing sunlight using some special devices called solar panels. These solar panels are made up of smaller components known as solar cells or photovoltaic (PV) cells. These cells can absorb the sunlight and generate electricity using the so-called photovoltaic. The first three concentrated solar power (CSP) units of Spain's Solnova Solar Power Station in the foreground, with the PS10 and PS20 solar power towers in the background Solar power, also known as solar electricity, is the conversion of energy from sunlight into electricity, either directly using. Solar energy is the energy we get from the sun. It is a “carbon-free” energy source that, once built, produces none of the greenhouse gas emissions that are driving climate change. The photovoltaic effect is the fundamental principle where sunlight excites electrons in a material, generating.