Tuesday, April 30, 2013

The plummeting cost of solar energy


The total amount of energy we use every year – from coal, oil, natural gas, hydro, nuclear, and everything else – is dwarfed by the amount of solar energy hitting the planet each year. How dwarfed? The solar input is 5,000 times greater than the amount we use from all those sources, combined.

In fact, it would take only about 0.3% of the Earth’s land area to meet all of humanity’s energy needs through 2030 via solar power.

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