Australian researchers say biodiesel from saltwater algae can be cost competitive with petroleum diesel.
They also state that due to the cost of transporting biodiesel from an algal farm, the best scenario may be to locate an electricity generating plant in the same vicinity and simply convert the chemical energy into electricity. Creating such a powerplant would also make new jobs for local workers.
Renewable energy and more jobs is a good combination. Indeed, that is one of the major promises of cleantech.