Comment Re:Something is wrong here (Score 0) 589
With these assumptions, figuring out how much solar energy hits the entire planet is relatively simple. 12.2 trillion watt-hours converts to 12,211 gigawatt-hours, and based on 8,760 hours per year, and 197 million square miles of earth’s surface (including the oceans), the earth receives about 274 million gigawatt-years of solar energy, which translates to an astonishing 8.2 million “quads” of Btu energy per year.
Source: http://www.ecoworld.com/energy-fuels/how-much-solar-energy-hits-earth.html