Solar PV or Solar cells, also called photovoltaic cells, convert the sunlight directly into electricity. This electricity is then fed through an inverter that converts the DC current into AC power.
Photovoltaics (often called Solar PV) gets its name from the process of converting light (photons) to the electricity we use. This was first used in 1954 by scientists at Bell Laboratories who created a working solar cell made from silicon that generated an electric current when exposed to sunlight. Over the years the process and technology has improved and now electricity from solar cells has become cost effective due to the drop in prices in recent years.