Leonardo Da Vinci predicted the mass use of solar energy as long ago as 1447.
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There is enough energy in one bolt of lightning to power a home for two weeks!
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On October 28, 2013, wind power provided 100% of Denmark's power. At 2:00am, it was producing 122% of the country's energy needs.
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The United States consumes 25% of all the world's energy.
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If you yelled for 8 years, 7 months and 6 days, you would have produced enough sound energy to heat one cup of coffee.
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One pinhead of the sun's energy is enough to kill a person at a distance of 160 kilometers.
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Every day, plants convert sunlight into energy equivalent to six times the entire power consumption of human civilization.
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