Helium-3, is it a Feasible Source of Energy?

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This investigation refers to a new source of energy called Helium-3. Helium-3 is a rare isotope of Helium, found in very small quantities on Earth. The problem is finding an abundant source of it, which might be the moon where large quantities accumulated over billions of years. There are scientists who opine that Helium-3 could be mined and brought from the moon at a cost-effective price, given that Helium-3 can be so efficiently transformed into energy. Helium-3 is also a cleaner, or even a nuclear waste-free source of energy, depending on the fusion process chosen. What is Helium-3?
Helium-3 (He-3 or 3He) is a light, non-radioactive isotope of Helium with two protons and one neutron. Isotopes are variants of a particular chemical element such that, while all isotopes of a given element have the same number of protons in each atom, they differ in neutron number. Helium-3 is emitted by the sun, and it is very rare on Earth because the atmosphere of the Earth doesn’t let a large quantity of Helium-3 pass. However, the lunar soil has been absorbing Helium-3 for billions of years, and it has significant quantities of it.
Although theoretically helium-3 could be obtained and processed efficiently to produce clean or even nuclear waste-free energy, it is not a readily available technology today. However, the future of Helium-3 is promising and so continued investigation is well warranted.
Where can we get Helium-3 from?
While it can be found on Earth in a natural state, quantities are very low, no higher than 0.000137%. The moon has large quantities of Helium-3, as current analyses indicate that there are at least 1 million metric tons embedded in the lunar surface. About half the Helium-3 is deposited in a portion of about 20% of th...

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... for the effectiveness of other kinds of energy:
• http://phys.org/news/2013-09-world-solar-cell-efficiency.html
• http://www.globalwindday.org/faq/how-efficient-are-wind-turbines/
New York Times article “China Plans Its First Unmanned Moon Landing This Year” by Chris Buckley on august 28, 2013http://www.nytimes.com/2013/08/29/world/asia/china-plans-first-unmanned-landing-on-moon.html?_r=0
MIT technology review article “India's Space Ambitions Soar” by mark Williams on July 30, 2007 http://www.technologyreview.com/news/408323/indias-space-ambitions-soar/
China View, Article “China plans moon landing around 2017” made on May 11, 2005 http://news.xinhuanet.com/english/2005-11/05/content_3733767.htm
Pravda, article “Russia to launch industrial mining of helium-3 on the Moon in 2020” 17 of march, 2006 http://english.pravda.ru/science/tech/17-03-2006/77404-moon-0/

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