Water, electricity, and gas has been free in Turkmenistan since 1991.
11
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
Electric lights for trees were first used in 1895.
62
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
In Iceland, 100% of domestically produced electricity comes from renewable energy.
8
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310