I think geothermal power could have a strong future, if it can be secured/harnessed properly, and is shown to flow for many years/decades from one source. That remains to be proven. However, heat energy is limited in what it can provide( mainly electrical power).
Sucrose, on the other hand, whether produced from sugar cane, corn or multiple cellulosic sources,can be converted into ethanol and a number of other chemicals, according to need and economics.
I say this to be sure BFRE investors do not worry about possible coming improvements in geothermal capacity. Geothermal power is no threat to the huge potential of producing ethanol, et.al., from cellulosic feedstocks.
