Solar Energy

Total energy absorbed by Earth from Sun is 3.85 YOTTAJOULES (X10") annually.

How much energy exactly is this?

Exposure of one hour of this energy is more than the world consumes in one year or to put it in another way, One year of this exposure from the sun contains twice as much energy than we'll ever gain from all the Earth's non-renewable resources like coal, oil, natural gas, and mined uranium all combined....!!! Now that's a lot of energy but we can use only fraction of it.