> Does anyone have any data to suggest how much methane generation
 > comes of a given weight of biomass? and how much power an engine
 > fed on it would produce?  And, any unintended consequences of
 > methane as an engine fuel?
Day,
 There has been a LOT of experimentation along those lines, and some 
discussion right here in the past. Dunno where to point you for specifics at 
the moment.
 > But, been wondering about using the sargosso in a methane system
 > with the biomass used afterwards to provide compost to grow some
All of the methane systems that I've seen discussed used manure for their raw 
material. I doubt that using just sargosso will work.
--- FLAME v1.1
---------------