http://wiki.answers.com/Q/How_much_solar_energy_does_the_world_use" http://wiki.answers.com/Q/How_much_solar_energy_does_the_world_use"
Solar Energy is mostly used in sunny places.
about 2%
About 0.05% of the worlds energy usage is from solar energy, translating to roughly 0.00024 ZJ, or 2.4 x 1017 J
Solar energy is of course produced from the collection of sunlight by solar cells. Our Sun is considered to be 4.5 billion years and its going to be around at least that much longer. See the related...