Definitely too good to be true. The energy contained in 15,000 gallons of biodiesel ~= 10,000 gallons x 133,000 BTU/gallon x .000293 kwh/BTU = 0.58 MM kwh The energy falling on one acre of land in the tropics ~= 5kwh/m2/day x 365 days/year x 4046 m2/acre = 7.4 MM kwh/year/acre So they're capturing 8% of ALL solar energy falling on each acre of land in their fuel, assuming they are in the tropics and not in the continental United States. The efficiency limit for photosynthesis is around 14%, which isn't calculated on a per-acre basis, but on a molecular exposure basis. Even if you could cover each acre with pure chlorophyll, the conversion efficiency would not exceed 14%. So they are claiming they will exceed 50% of the theoretical photosynthetic limit AFTER all the energy and efficiency loss of processing, for a net yield of 15,000 gallons? Total BS. If they claimed 1000-2000 gallons, maybe, but with their claims you can bet it's a pump-and-dump green stock scam.