Solar-powered electrolysis, using a bioengineered protein.

Cool. Brings a whole new meaning to the (stupid) phrase "no blood for oil." In this case, it's blood to replace oil.

Wish they had some numbers in there.

Until they do, this means about as much as the super-algae that supposedly can do the same thing.

The inevitable question:

"How well does it scale?"

One important thing to ask about any solar power system is 'how long will it operate'? The molecular ones in particular are subject to photodegradation, particularly from the shorter wavelengths of light. I suspect these proteins will be bleached to uselessness by sunlight in a very short time.

I'm getting an internal server error whenever I try to post.