What is the world energy consumption? What amount of solar energy incident on the earth?Earth as seen from spaceThe sun produces an enormous amount of energy: about 1.1 x 1020 kW hours every second (1 kW-hour is the energy needed to light a 100-watt bulb for 10 hours). The outer atmosphere intercepts approximately about 1.5 trillion (1.500.000.000.000.000.000) kilowatt hours . . .