Thread: About Japan...
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Old 03-18-2011, 08:43 AM   #7 (permalink)
Scuba_Dave
 
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Default Re: About Japan...

Instead of putting billion of dollars into nuclear power the $$ should go into solar/wind etc
I picked up 2 solar water panels last year & use them to heat my hot tubs
I also have solar heat for my pool, which went to 86 last year

Quote:

With these assumptions, figuring out how much solar energy hits the entire planet is relatively simple. 12.2 trillion watt-hours converts to 12,211 gigawatt-hours, and based on 8,760 hours per year, and 197 million square miles of earth’s surface (including the oceans), the earth receives about 274 million gigawatt-years of solar energy, which translates to an astonishing 8.2 million “quads” of Btu energy per year.
In case you haven’t heard, a “quad Btu” refers to one quadrillion British Thermal Units of energy, a common term used by energy economists. The entire human race currently uses about 400 quads of energy (in all forms) per year. Put another way, the solar energy hitting the earth exceeds the total energy consumed by humanity by a factor of over 20,000 times.
Clearly there is enough solar energy available to fulfill all the human race’s energy requirements now, and for all practical purposes, forever. The key is developing technologies that efficiently convert solar power into usable energy in a cost-effective manner.
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