320 000 000 000 kWh/day !!! I was just reading this national geographic article and it states here that the world uses 320 billion kWh/day. That equates to roughly 22, 100W lightbulbs running 24 hours a day for every single person. all >6000000000 of us. I just find this unbelievable! who uses all this energy, there are 4 people in my house. I'm not sure what our hydro bill is but, equating to burning 88 100w bulbs constantly I don't see how we could even break average. And then there are the countries that use very little energy, I guess we're making up for them by using even more energy. So the average for developed countries must be significantly higher than 22 bulbs running. This is just incredible, no wonder we get brownouts and blackouts all the time around here.