Sun-powered water splitter

Ponder this. What would it mean if we could use the sunlight to create a steady stream of hydrogen? This nano-particle charge device does just that at an efficiency of 60 per cent. And that's just the prototype. How much better can that get with some additional practical experience? I wonder if this might be the true path for solar-based power. If you are producing clean-burning fuel from the sun you don't have to worry about storing energy for when the sun doesn't shine. You are storing it automatically.