permaculture

["Jeff Hall" <JRHALL@gwgate.lib.iastate.edu>]

My understanding from an independent researcher who had tried to develop a 
small farm scale biogas system for many years is that temperate climates are 
a huge obstacle to small scale biogas systems. The most efficient microbes 
are very picky about temperature, so you need a very warm and stable space 
for them to do their work. I think thats the reason many have tried and only 
a few systems in the warmest climates have actually succeeded...
This researcher attempted below ground, hoop houses, many ideas before giving 
up.
If I'm wrong, I'm glad I about it:)
-Jeff Hall, Ames Iowa