Could the Entire World Really Run on Solar Power?
At our house in Cebu we just finished installing 12 solar panels that generate 
1200 watts of electric at maximum. So far so good! Have you started saving 
energy and greenhouse gas too?
It’s pretty safe to say that we all know that we have to find an alternative to 
fossil fuels as soon as possible, and the most viable answer to the planet’s 
energy needs is visible to us any time we look upward. The amount of solar 
energy that hits just 1 square mile of this planet over the course of a year is 
equal to 4 million barrels of oil, and the energy that hits the Earth in a mere 
40 minutes can fuel all of humanity’s energy needs for a year. Isn’t that 
incredible? Check out the infographic below to learn more about all the ways 
that solar power is the way to go, and how we can go about making it a reality 
worldwide.
viewer comment
I come up with about 2500 square miles for the US. There are more than 40,000 
square miles in the Mohave desert alone. Presumably about 50% could be used for 
solar.
source: 
http://inhabitat.com/could-the-entire-world-really-run-on-solar-power/