Chemical News

Sunday, September 9, 2007

Biostorm to Build 10 Biogas Plants in Germany

Biostrom Energy Group AG, a 75.1% subsidiary of Germany's BKN BioKraftstoff Nord AG has acquired a further key order in the biogas segment. It has concluded an advance agreement with the city of Potsdam to construct ten biogas plants and two CarboCompact plants with a total volume of €26/US$35.8 million.

According to this agreement, the modular plants, with an output of 10 times 500 KW will be constructed from the middle of 2008 in Energiepark Linthe near Potsdam (southwest of Berlin). Biostrom Energy Group AG is currently constructing 17 plants with total output of 8.5 MW. The gas produced in the ten biogas plants in Linthe will be of natural gas quality and will be fed into the national gas grid.

Biogas is a mixture of gases which result from the anaerobic microbial decomposition of organic substances, of which 50-70% is methane – a top-quality energy source. Additional components are carbon dioxide (CO2) as well as traces of hydrogen sulfide (H2S), Nitrogen (N2), Hydrogen (H2) and carbon monoxide (CO). By upgrading and cleaning these components out of biogas, biomethane of natural gas quality can be obtained. When this renewable and carbon-neutral gas is fed into the main pipelines, it can be used for a range of end-uses, from home use to powering CNG-cars. Germany recently started looking into opening up the country's entire gas grid to accomodate biogas (more here and here).