Once they are developed, yes. You are attempting to predict the future. Great! That's fine. Perhaps you are even right. We won't know until we get there of course...and there may be many more barriers to getting there than we current realize. But, as for the present...this is what we have now. I truly applaud all those who freely undertake to research and invent new technologies (in energy or other areas) to enable us to have all the energy we need and want, inexpensively and safely. However:
Here's the way we will probably go : http://en.wikipedia.org/wiki/Helium-3
The helion, the nucleus of a helium-3 atom, consists of two protons but only one neutron, in contrast to two neutrons in ordinary helium. Its existence was first proposed in 1934 by the Australian nuclear physicist Mark Oliphant while based at Cambridge University's Cavendish Laboratory, in an experiment in which fast deuterons were reacted with other deuteron targets (the first demonstration of nuclear fusion). Helium-3, as an isotope, was postulated to be radioactive, until helions from it were accidentally identified as a trace "contaminant" in a sample of natural helium (which is mostly helium-4) from a gas well, by Luis W. Alvarez and Robert Cornog in a cyclotron experiment at the Lawrence Berkeley National Laboratory, in 1939. The presence of helium-3 in underground gas deposits implied that it either did not decay or had an extremely long half-life compatible with a primordial isotope.
Helium-3 is proposed as a second-generation fusion fuel for fusion power uses. Tritium, with a 12-year half-life, decays into helium-3, which can be recovered. Irradiation of lithium in a nuclear reactor — either a fusion or fission reactor — can also produce tritium, and thus (after decay) helium-3.
And another good reason to go back to the moon as well.