https://web.archive.org/web/20151122183613/https://brilliant...
BrilliantLight has developed a commercially competitive, nonpolluting source of energy from water. A SunCell™ catalytically converts H2O-based solid fuel directly into brilliant light which is converted to electricity using photovoltaic panels.
If they actually had this "commercially competitive, nonpolluting source of energy" they'd be selling the machines or selling the electricity by now.