Biogas is produced in fermentation tanks. Sludge, bio-waste and leftovers, fertiliser such as dung and liquid manure and selective energy plants like corn are ideally suited as input. It is a gas mixture which develops through microbial degradation of organic substances in vacua.
The energetic premium biogas can be converted to the block heat and power plant. The electricity produced in this way and heat can be used, during the process. The remaining substances are water and fermented organic material which may be used as high quality fertiliser.
Biogas is forward looking. Mixing it with wind-waterpower, photovoltaics and geothermy even a full supply is possible!
