PV Solar Energy

A solar photovoltaic system PV uses sunlight to generate electricity. Within the panels are solar cells which, when exposed to sunlight, produce direct current (DC) energy. To power the appliances in the home, this electricity must be converted to alternating current (AC) and this is done by a solar inverter. Once the renewable electricity has passed through the solar inverter, it's ready to power the electrical items around the home.
PV solar panels arent nearly as efficient as thermal panels, turning about 20% of captured sunlight into electricity
Solar Energy Cumulative Installations thru 2016 (GW-DC)
Source - energy.gov

Solar Energy Companies List