I think the article raises serious issues that put doubt on the entire algae process, even assuming it could be economic on a micro level. How many square feet of water surface and water volume will be needed. Where will the water come from and who want’s to donate their reservoir to pond scum? We will obviously be driven (assuming we ever get there) to creating enormous systems of artificial lakes (the size of a medium size state) and getting the water from somewhere. Who knows where?
Until good answers may be had for problems like that, subsidizing companies to produce algae energy seems stupid. Reducing spending seems like a much better idea to me.
A gentleman who purported to be running the biggest algae operation in the U.S. called Limbaugh a couple of weeks ago.
He peed all over the concept of algae as a major source of "green energy" -- pointing out how much land and water the operation would require to even provide 1% of our energy needs.