Excellent point Mr. H. Idiots. Applies equally to nuclear fission as well as fusion. The thorium molten salt fission reactor that Flibe Energy is working on could come in a small form factor and help the U.S. military disconnect its bases from the grid
http://www.smartplanet.com/blog/intelligent-energy/the-new-face-of-safe-nuclear/7712?tag=search-river. That's just one example. Others within the links at end of story. Or search "modular nuclear" above for more from me and my SP colleagues. Modular reactors could also be used as a heat source for industrial processes. On a slightly controversial note, for instance, they could assist in oil sands extraction. See "How nuclear will make oil greener"
http://www.smartplanet.com/blog/intelligent-energy/how-nuclear-will-make-oil-greener/10879.