Edible algae coming to a rooftop near you

Businesworld online and VOA

“If you compare it to meat it will take six months to grow a kilogram of beef, but this we can grow in a week.”

Maybe you can feed it to ducks, chickens, and goats, like I researched yesterday.  Chickens will definitely eat it.  Ducks too, most likely.  I don't know about goats, but goats are said to eat anything.

What about grasshoppers since grasshoppers eat anything?  Grasshoppers!  Yeah, they eat grasshoppers in Mexico.  Not that I would want to eat grasshoppers, but the chickens might eat them.  Plus the ducks.

Spirulina is quite prolific:

Energaia, after years of research and development utilizing four staff micro-biologists, is producing 80 to 100 kilograms of spirulina weekly utilizing 130 square meters on the Novotel's flat roof.

With a yield of about 12 lbs per gallon, 80 kilograms of this stuff can make  14 gallons of biofuel.  I'd say that would be methanol, not biodiesel itself.  If you had 70 gallons of waste oil, you could make maybe that much in biodiesel from it each week.

By the way 130 square meters is 3.2% of an acre.  Not much area would be required.