[dangerdoc]

A gallon of diesel has over 50 kwh of energy, full sunlight has about 1kw/square meter at noon. Factoring in efficiency of biologic systems, hours of daylight per day and conversion losses, that is going to be one big demo plant.

[SC Swamp Fox]

....that will convert sunlight, CO2 waste into up to 75 million gallons of biodiesel, 125 million gallons of ethanol per year

I'm no chemist but aren't they missing a few necessary ingredients?