I did a similar calculation a few weeks ago: Humans consume about 100W average power (2000 kcal to watt hours/24 hours). So 8 billion people consume ~800 GW. C

I did a similar calculation a few weeks ago: Humans consume about 100W average power (2000 kcal to watt hours/24 hours). So 8 billion people consume ~800 GW. Call it 1 TW. Average world electric power generation is 28000 TWh / (24*365 hours) ~3 TW.