My father-in-law (Phillip Rutter) gets credit for this one, but I thought this would be a good forum:
Switchgrass is a perennial prairie grass that has great biofuel potential. However, to be harvested with least harm to the plant, it must dry out. But acres and acres of dry prairie grass = huge fire risk, whether from lightning, idiocy, or arson. Anyone know of any ways to deal with this? Apparently my father-in-law has posed the question to a variety of people-in-the-know and received no satisfying response.