Biogas plants generate biogas via the fermentation of biomass. Biomass is a renewable raw material and continuously available unlike wind and sun. Biogas plants can thus supply base-load demand with regenerative energy. Depending on the composition of the substrate, the biomass runs through a wet or dry fermentation process. The biogas from this process can be used on site to generate power in a decentralised heat and power unit or converted to biomethane and fed into the natural gas grid.
The efficiency of a biogas plant depends essentially on the annual operating hours and the quantity of methane produced. Adaptation of the mode of operation to the mechanical and biological properties of the substrate will reduce the plant's susceptibility to faults and ensure a high power output.
BNA has supplied electrical and control technology to a large number of biogas plants and is thus familiar with both wet and dry fermentation. The substrates used in these plants include the whole range of products from liquid manure and secondary agricultural products through to silage and biological waste.
The experience gained in the automation of different processes results in control solutions that help operators keep their plant's operating time long and operation and power costs low. BNA supports operators in optimising the mode of operation and increasing the output of the plants through informative reports, data analysis and technical remote access solutions.