From Forbes:
"Nocera's discovery--a cheap and easy way to store energy that he thinks will be used to change solar power into a mainstream energy source--will be published in the journal Science on Friday. "This is the nirvana of what we've been talking about for years," said Nocera, the Henry Dreyfus Professor of Energy at MIT. "Solar power has always been a limited, far-off solution. Now we can seriously think about solar power as unlimited--and soon."
"Plants catch light and turn it into an electric current, then use that energy to excite catalysts that split water into hydrogen and oxygen during what is called photosynthesis' light cycle. The energy is then used during the dark cycle to allow the plant to build sugars used for growth and energy storage."
"Nocera and Matthew Kanan, a postdoctoral fellow in Nocera's lab, focused on the water-splitting part of photosynthesis. They found cheap and simple catalysts that did a remarkably good job. They dissolved cobalt and phosphate in water and then zapped it with electricity through an electrode. The cobalt and phosphate form a thin-film catalyst around the electrode that then use electrons from the electrode to split the oxygen from water. The oxygen bubbles to the surface, leaving a proton behind."
Click on link for the full story:
Solar Energy, All Night Long - Forbes.com
This could be big news.
New Solar Process
Ultracapacitors Minutes Charging 
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