Surge in algae fuel research
USA: Driven by the high oil prices earlier this fall, the Center for Bio Refining (CBR) at the University of Minnesota is searching for alternative fuel sources. The Center is looking at, among other sources, turning algae into a commercially viable energy source for the future. CRB is only one of many institutions now trying to find alternative energy sources.
Researchers at CBR estimate that algae can produce as close to 57,000 liters per hectare. By comparison, corn yields about 170 liters, soybeans produce 450 liters and palm trees yield 6,000 liters per hectare. One of algae's other great virtues is that unlike corn-based ethanol, many strains can be grown in salt water on marginal land.
Researchers say that some algae species contain as much as 50 per cent oil. This is oil which can be converted into biodiesel or jet fuel. However, currently, a major issue is production cost, which is very high. Some estimate this cost to more than USD 5.30 per liter.
In order to become competitive with current energy sources it is necessary to bring the cost down under USD 0.50 per liter. Many are quite optimistic that this is feasible.
Scientists are focusing on finding the highest yielding strains of algae, how to grow enough of it, and find the most efficient technologies to extract the oil. Because of the increasing cost of currently used energy sources, the researchers have experienced an increase in available funding from governments, military, large oil companies, utility companies and venture capital companies.
