Leonardo Da Vinci predicted the mass use of solar energy as long ago as 1447.
153
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
If you yelled for 8 years, 7 months and 6 days, you would have produced enough sound energy to heat one cup of coffee.
1k
Over its lifetime, the average microwave requires more energy to display a digital clock than to heat food.
10
There is enough energy in one bolt of lightning to power a home for two weeks!
102
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.
12
Every day, plants convert sunlight into energy equivalent to six times the entire power consumption of human civilization.
9
Sweden is so good at recycling, it has run out of garbage and now must import garbage from Norway to fuel its energy programs.
20