The Sun is the primary source of energy for Earth.
A total of 173000 terawatts (trillions of watts) of solar energy strikes the Earth continuously. That's
more than 10000 times the world's total energy use.
This solar energy is clearly sufficient in scale to meet
all of earth's energy needs - if it
can be harnessed and stored in a cost-effective way.
China - 205 GW
The U.S. installed 76 GW of solar capacity in 2021
Japan - 63.2 GW
Germany - 49.2 GW
India - 38 GW
Solar Energy Cumulative Installations thru 2016 (GW-DC)
Source - energy.gov
Solar Energy Companies List
Solar Energy Analysis