Energy Timelines Photovoltaic

What happened

A photovoltaic cell, also called a PV or solar cell, is a device that converts light (radiant) energy directly into electrical energy. PV cells are usually made from silicon. The first PV cells were very inefficient, converting less than 1% of radiant energy into electricity. Today, some solar cells have a 40% conversion rate.

Summary assembled by rule from the sources below

Sources