The Focus Fusion Society › Forums › Innovative Confinement Concepts (ICC) and others › Cheap solar water-splitting
Not a fusion process, of course, but possibly competitive. ARPA-E winner process:
http://web.mit.edu/newsoffice/2008/oxygen-0731.html http://www.suncatalytix.com/tech.html
Break up the water while the sun shines, then recombine in a fuel cell when it doesn’t. Uses phosphorus and cobalt.
Its fusion, just the sun kind 😉 Still this is probably just the catalyst in the electrolyzer, nothing to do with solar cells themselves.
Fusion WILL be the way … simply because it is so incredibly dense source of energy. The rest is engineering … and engineers are pretty good once the dollars are in place …