We set standards for the construction and improvement of the quality of biogas plants. 

Our portfolio includes not only the development, planning and construction of biogas plants using various raw material sources, but also close technical and biological support. With our engineering arm based in Abuja, Nigeria, we offer our customers innovative gas processing technologies for biomethane production and gas upgrading. Our financing department allows us to invest in large waste-to-energy projects based on long-term offtake agreements.

From the entry-level model to the megawatt range, our systems are characterized by industry-proven quality standards, materials from selected manufacturers and the reliability of all system components in continuous use.

Variety of input materials

In addition to the classic input materials such as grain, corn silage and manure, our systems also utilize cheaper raw fiber-rich biomass and organic residues. The individual components and the different input materials have been tried and tested in Consentis’ own systems and have proven to be reliable, solid and efficient.

Sophisticated process technology

In process technology, CLEANTECH GERMANY’s systems also demonstrate high stability and consistently high utilization. This is reflected in the long residence time of the substrates, the low digestion space load, the large fermenter volume and a correspondingly comprehensive gas storage facility.

With biogas plants for renewable raw materials you can effectively produce climate-friendly biogas. This reduces disposal costs and protects the environment at the same time.

Characteristics of gas power plants

What gas power plants of all power categories have in common is that the power they generate can be adjusted relatively quickly. The start-up time for a gas power plant is usually well under an hour. They are therefore even suitable for peak loads. They can be easily combined with wind power.

The exhaust gases from the systems contain carbon dioxide (CO2) and are therefore harmful to the climate. However, the specific emissions are significantly lower than for coal-fired power plants – between approx. 400 g/kWh for combined cycle power plants and around 600 g/kWh for pure gas turbine power plants. The climate balance can be further improved with combined heat and power or by using biogas. Otherwise, certain nitrogen oxide emissions occur, which depend heavily on the design and exhaust gas purification.

New gas power plants as part of the energy transition

As part of the energy transition, gas-fired power plants are becoming increasingly important, at least for a transitional period. Since wind energy in particular is increasingly leading to highly fluctuating production, power plants with flexible output are increasingly needed, and gas power plants are far more suitable here than, for example, B. Coal-fired power plants and are therefore increasingly likely to displace them – which will result in additional CO2 reduction effects. The world’s most powerful gas power plant was inaugurated in Irsching, Bavaria. The Ulrich Hartmann gas and steam power plant (CCPP power plant) has an efficiency of more than 60 percent. For comparison: an old hard coal power plant such as the Ensdorf power plant in Saarland has just over 30 percent. New hard coal plants generate around 45 to 46 percent. Around half a billion euros were invested in the combined cycle power plant with an output of 561 megawatts.


Biogas – ecological variant of natural gas Biogas is an environmentally friendly energy source from local fields. It is created in agriculture and forestry from animal waste, organic food residues and waste materials, as well as from specially grown, fast-growing energy crops or catch crops. It therefore does not release more carbon dioxide than the plants absorbed through photosynthesis during their growth. Biogas is created through the processing (fermentation) of this biomass in special plants. The biogas can be used directly to generate heat and electricity or refined into bio-natural gas in gas processing plants. It has the usual natural gas quality and can therefore be fed into the natural gas network. It can also be used as fuel for natural gas vehicles, in its pure form or as an admixture. Biogas production makes sense both ecologically and economically and is part of the circular economy and an increasingly important sector for domestic agriculture.

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