via Berkeley Lab: It Takes 70 Billion Kilowatt Hours A Year To Run The Internet
Excerpt
… To generate 70 billion kwh you’d need power plants with a baseload capacity of 8,000 megawatts — equivalent to about 8 big nuclear reactors, or twice the output of all the nation’s solar panels.
Sliced up per capita, the average American uses about 200 kwh a year for his or her internet use, costing about $20. For those of you obsessed with carbon footprints, your internet use is responsible for the emission of about 300 pounds of carbon dioxide per year.