Cool Planet’s biorefining process requires a relatively low energy input at every stage. That starts with growing, since Miscanthus is a hardy perennial that does not require annual planting. The biomass prep stage is low-impact because the refining process is designed for crops that can be air dried to the appropriate moisture content while still in the field. No additional treatment is needed other than grinding. As for the refining, Cool Planet describes the process temperature as comparable to a “kitchen stovetop,” and the pressure barely tops that of a portable tire inflater. All in all, the conversion process from dried biomass to gasoline takes about one hour.