Manufacturer and supplier of mini biogas plants up to 75 kW

"Those who have a choice are spoiled for choice," is the popular saying. From this perspective, I would like to torture you somewhat with the following list of different manufacturers and suppliers of mini biogas plants in Germany. Choosing the right 75 kW system is certainly one of the most difficult decisions you have to make in your “Mini Biogas Project Project”. Since I have not yet found an overview with various providers of complete systems or partial components for mini-biogas plants, I have created a list below that offers a market overview of the existing manufacturers. The providers are spread across the whole of Germany.

In an earlier article there are already some questions about the economy of a 75 kW system, or Construction and operation of a mini biogas plant been followed up. This article builds on these fundamental considerations and offers you an introduction to market research for choosing your optimal mini biogas plant.

Which manufacturers and suppliers of mini biogas plants up to 75 kW are there?

The market segment for micro biogas plants has so far been rather insignificant in the biogas landscape in Germany. Only with the new 75 kW system type Mini biogas plant in the EEG 2012 and the historically highest subsidy rate for biogas plants, this performance class has increasingly become the focus of manufacturers and suppliers of biogas technology.

The following companies offer complete systems or components for the construction of a mini biogas plant.

I am in regular contact with some manufacturers of the mini-biogas plants presented about the problems that still exist, but also about the solutions and strengths of the various concepts. With pleasure I advise you to the previous experiences with the plants between 30 - 75 kW or support you in planning your own mini biogas plant. I am grateful to all of the providers presented here for more information on their product. Many thanks.

But now to the growing range of mini biogas plants. Here we go.

AgriKomp | Slurry plant as a mini biogas plant

The provider AgriKomp from the Franconian town of Merkendorf offers the construction of a so-called “slurry plant” in the performance class of mini-biogas plants. This is equipped with a 50 kW CHP. The fermenter corresponds to a tube fermenter, which can be operated from 10 m3 slurry / day.

MT energy | Mini biogas plant MT-Farm

The manufacturer and supplier of biogas plants MT-Energie from Zeven is certainly the most experienced and with around 600 employees also the largest company that currently offers mini-biogas plants. For detailed information, the manufacturer of a mini biogas plant offers its own information brochure for the MT-Farm biogas plant with 75 kW

A special feature of the MT-Farm is that the mini biogas plant is designed for the exclusive fermentation of liquid manure. The minimum quantities of 80 percent liquid manure required by the EEG 2012 are expanded to 100 percent for business reasons (no additional substrate storage).

System concept Mini-biogas plant from the manufacturer MT-Energie
Flow diagram of a mini biogas plant from the manufacturer MT-Energie

Biogas-Ost | Clever Ferm system mini biogas plant

The Biogas-Ost company group from Gehaus in Thuringia offers mini biogas plants between 30-100 kW with the “Clever-Ferm-System”. Farmers, nurseries and bio-waste disposal companies benefit from the unique offer of a Mini biogas plant with wooden fermenter.

The wood fermenter is an inexpensive and climate-friendly alternative to steel and concrete and is particularly interesting for the operation of a mini biogas plant.

BioConstruct | Mini biogas plant BioCompact 75 kW

"Do you have 150 cows or 2.000 fattening pigs? Then you should know the latest developments in biogas plants. ”
With this slogan, BioConstruct GmbH from Melle, Lower Saxony, is promoting its mini biogas plant BioCompact. In order to find out whether your own livestock farm is suitable for building such a small biogas plant, a separate form is offered on the website.

Ecobit | Mini biogas plant SYSTEM FLEX

The Ökobit GmbH from Föhren in Rhineland-Palatinate offers with SYSTEM FLEX and SYSTEM KORN two construction methods for mini biogas plants. The compact system SYSTEM FLEX is suitable for the 75 kW system according to EEG 2012, since the use of 80 percent liquid manure must be possible. The plant can be used to ferment 4.000 m3 of liquid manure per year and is ready for operation in just 4 weeks.

Schmack Biogas | EUCOlino compact biogas plant

Schmack Biogas GmbH, which now belongs to the Viessmann Group, has many years of experience (founded in 1995) in the construction of biogas plants and has now also added a mini biogas plant to its range.

The EUCOlino is sold as a compact system and can be operated very flexibly in terms of performance and the substrates to be used. In addition, other patented technologies or the supplier's high-performance bacteria (METHANOS) can also be used in the mini biogas plant up to 75 kW.

bwe biogas-weser-ems | bwe farm power plant mini biogas plant

The bwe biogas-weser-ems GmbH & Co. KG from Friesoythe in Lower Saxony offers with the "bwe Hofkraftwerk" a complete solution especially for the 75 kW class, from planning through construction and commissioning to maintenance.

The bwe Hofkraftwerke are built with a fermenter (1.300 m³ fermentation volume) and a repository (2.800 m³) as a "container in a container system" in on-site concrete and are completely gas-tight. This enables a flexible use of input materials.

The CHP (gasoline engine) as well as the control and pump technology are housed in 2 containers to save space. A solid matter feeder for feeding manure and renewable raw materials complements the system. In addition, a solution for 100% liquid manure use is offered.

A non-binding offer including economic viability will be created at any time.

KGBA | Enbea Bots mini biogas plants from 40 kW

KGBH GmbH from Herford in North Rhine-Westphalia offers various complete packages for mini biogas plants. The operator can choose between the power levels 40 kW, 50 kW, 60 kW, 70 kW or 80 kW to implement the new EEG system type up to 75 kW.

According to the provider, the work required to operate a mini biogas plant with 60 kW is only 4-6 hours per week. This expenditure of time is required for the weekly fermenter filling.

Mini biogas plant from Conviotec and Consentis

In a cooperation between the developer Conviotec GmbH (Flensburg) and the manufacturing and sales partner Consentis GmbH (Wietmarschen), a mini biogas plant is offered, which is to be operated exclusively with liquid manure.

The special thing about the Conviotec biogas plant is that it is offered in a container design. The container works as a multi-chamber fermenter.

Here you will find a film by Conviotec, which provides an insight into the structure of the manufacturer's mini biogas plant.

Biogas Nord | Mini biogas plant 75kW BiNoMiniMax

The company Biogas Nord AG from Bielefeld has international experience in the construction of biogas plants. The team of 180 employees has realized over 300 projects to date.

The BiNoMiniMax mini biogas plant is presented in detail on the Biogas Nord website. As a result, the provider can operate the new mini biogas plant with cattle and pig manure.

Mineralite small biogas plant

The mini-biogas plants of Mineralit GmbH from Laage in Mecklenburg-Western Pomerania are not directly tailored to the EEG 2012, but rather correspond to the company's selected range of services. Mineralit offers small biogas plants between 50 - 300 kW in the bioenergy sector. The supplier's design corresponds to a modular system.

At this point I would like to consider that the description of the mineralog GmbH's biogas plants explicitly mentions that “the process is structured in such a way that agricultural residues (liquid manure, liquid manure, solid manure) are not required. Hopefully this does not mean that residues cannot be used anyway. In this case, the small biogas plants from Mineralit would not be suitable for the construction of a mini biogas plant according to EEG 2012. For the sake of completeness, I first included the supplier's small biogas plant.

Energy room e3 | Mini biogas plant EVA 75

Energieraum GmbH is located in Oldenburg in Lower Saxony and offers the mini biogas plant EVA 75. More detailed information on the 75 kW system offered is unfortunately not yet available on the Internet, but can be found out on request from the manufacturer.

Bio4gas micro biogas plants up to 75 kW

Bio4gas Express GmbH from Landsberg am Lech in Bavaria offers both fermenters and CHP units in the order of magnitude required for a mini biogas plant according to EEG 2012.

Further information can be found on the provider's website.

Sauter Biogas GmbH | Mini biogas plant SB-Mini

The name Sauter is a household name in most of the German biofuels industry. To my knowledge, there are no family connections between Sauter Biogas GmbH and Claus Sauter, the founder and CEO of Verbio AG.

The provider of mini biogas plants from Klipphausen in Saxony offers the 75 kW plant "SB-Mini". Here you can find one Description of the Sauter biogas system.

"The heart of the Sauter biogas system is the irrigation of the fermenter contents instead of the usual agitation."

In addition, the FNR announced in a press release on January 19.01.2012, XNUMX that Sauter Biogas GmbH and the Agricultural Technical Institute Potsdam-Bornim (ATB) are carrying out a joint research project to better control the biogas process. In the biogas pilot plant of the ATB I was able to complete an internship myself and learn a lot about the hydrolysis process of biogas production.

Energy systems Röhring | 75 kW system UDR-MonoTube

The company Energie-Anlagen Röhring GmbH from Vreden offers their customers a 75 kW mini biogas plant. The compact biogas plant “UDR-MonoTube” is based on the company's many years of experience in fermenter construction.

The advantages of the system are a short construction time, small space requirements and the possibility of thermophilic operation with thermal disinfection.

Corntec GmbH | Mini biogas plant "small cattle" with 75 kW

The provider CornTec from the Lower Saxony Twist has specialized in a special type of mini biogas plant. The "Kleinvieh" system offered has all the technical components for a 75 kW system integrated in a 40-foot standard container, so that this system can also be operated in cramped yard conditions.

Conclusion on providers and manufacturers of mini biogas plants

All manufacturers and suppliers of mini biogas plants up to 75 kW that I could find are listed in this article. If I have overlooked a provider, I would be grateful if you would refer to it in a comment.

In addition to established companies in the construction of biogas plants, relatively young companies are also trying to gain a foothold in the market for small biogas plants. On the supplier side for mini biogas plants, a colorful market has developed that represents a mixture of innovation, experience and regional ties.

I am surprised that large plant manufacturers such as Envitec, WELtec or Haase have so far shown no ambitions to enter the market for mini biogas plants. I suspect that the market segment of mini-biogas plants is not interesting enough for companies of this size, or that companies see more economic success in the international market for large plants or focus on the processing of biomethane. A market situation that young companies in particular are unlikely to be disappointed with.

My expectation and hope is that some too Manufacturer and supplier of CHP will bring interesting products to the market that have been specially developed for the 75 kW mini biogas plants.

If you have any further questions about the individual manufacturers and suppliers of the mini biogas plants (service offer, experience, costs, etc.), please speak to them directly or ask them to send you a non-binding offer.

Contact at least three or four providers and describe your specific case. In this way you can compare the different statements and work with the provider who is the most likeable, trustworthy or simply the cheapest. A good mix of all these properties is certainly not wrong.

You should pay particular attention to the range of services offered by the various manufacturers and providers. In addition to routine maintenance, a mini biogas plant should, if possible, be in operation all year round in order to generate a solid profit. If you have problems with the operation of the system, you should be able to get help quickly and inexpensively.

I wish you much success and fun with the next stages of your project and adventure mini biogas plant.

If you like, I can contact you at the Advice on planning your own mini biogas plant. I now know many of the paths currently taken, as well as their advantages and disadvantages, and I am in regular contact with providers, operators and associations.

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21 comments on “Manufacturers and suppliers of mini biogas plants up to 75 kW”

  1. There are some providers of biogas plants in the 75 KW class, but be careful some expect the 80/20 regulation. And they say add a few tons of corn, barley, GPS. Go with the EEG. But the cost of energy corn will rise, as will the price of leased land.

    These slurry upgrading plants or slurry biogas plants are intended as an additional income to the farm. If someone wants to become an energy manager, he has to invest in a plant from 600 kW or larger by one or two megawatts, but where should the biomass come from for such a large plant?

    Substrate costs and transport, these points should not be missing from the invoice!
    Therefore a pure manure possibly with my manure and feed residues, that must be enough in my opinion. Then the biogas plant also fits the farmer's farm!

    I do not want to name any names and do not advertise myself.

    with sunny greetings from Munich Olching Sepp

  2. I also believe that if you have the right amount of slurry available as a farmer, operating a purely slurry plant is the cheapest and most straightforward. It doesn't matter whether the slurry comes exclusively from my own farm or whether I form partnerships with neighboring farmers.

    As you said, it is important to note that the manure transport route is as short as possible and ideally comes entirely from your own animal husbandry.

    In the case of pure liquid manure systems, one also saves the costs that would arise for corresponding additional storage for NawaRo's (maize, GPS, etc.). If the 80/20 ratio has to be entered because there is insufficient liquid manure as the sole substrate, then the use of NawaRo's also has some advantages. These advantages are not in the cost range, but rather in the operation of the system. In this way, the NawaRo's can have a stabilizing effect on the fermentation process and also increase the energy content of the substrate.

    Generally, I believe that it is for the successful Construction and operation of a mini biogas plant "> Operation of a mini biogas plant good regional partnerships are particularly important. Creativity and initiative for win-win partnerships in the exchange of liquid manure, heat, electricity and digestate are in any case a big PLUS. This commitment also has the advantage that it draws further value creation processes into the region and supports the establishment of a real decentralized energy supply and circular economy.

    The cooperation with an experienced plant manufacturer, initiative, good knowledge of the energy flows in your own community and curiosity and enjoyment of biogas technology are important points that can have a strong positive influence on the successful operation and the "mini biogas plant project".

    I am excited to see how the landscape of mini biogas plants will develop in the coming months.

    Thank you for your comment!

  3. Please contact us so that you can complete the list of providers for 75-KW plant manufacturers. We would be happy to present our innovative UDR fixed bed system to you.

    The UDR Repower system is suitable for upgrading existing biologically not optimally running systems.

    I am happy to inform you about our developments and possible uses for agriculture, municipal sewage treatment plants and industrial anaerobic wastewater treatment.

    I look forward to your mail.
    With kind regards,

    Alfred van den Berg
    Managing Director
    Energie-Anlagen Röring GmbH

  4. Martin Dotzauer

    It should also be pointed out that often only the pure liquid manure plants should be able to be operated economically because, unlike the "80/20" plants, they do not have to build a gas-tight fermentation residue store for 150 days (Section 6 (4) EEG 2012). Small systems that also use renewable resources have to factor in significantly more fermenter volume and are therefore significantly more expensive in terms of investment. This must be taken into account in a profitability analysis if appropriate offers are obtained.

  5. Thanks for the addition. This also confirms the information and experience from plant manufacturers that I have heard so far. The pure slurry plants in the segment for mini-BGAs are likely to be the ones that will pay off fastest and for which the least effort has to be done.

    Nevertheless, I would not prematurely write off the systems that also use NawaRos. Rather, I hope that plant manufacturers and project planners will develop appropriate concepts to also economically design a 20 percent share of corn, sugar beet, etc. Maybe these are just isolated cases at the beginning, but clever partnerships and a good knowledge of the location should also lead to interesting and successful concepts for mini-biogas plants.

    We need mini-biogas plants for a decentralized and renewable energy supply.

  6. Dear Sirs and Madames,
    we have corrected our typing error (CHP to kWh) would be great if you did not refer to it again!
    Many thanks

    Thomas Bock

  7. Hello Mr. Bock,

    Nothing escapes the energy bloggers :-) but in this case I like to take this hint from the article.

    Good luck with the current projects for mini biogas plants.

  8. Good overview of which providers are represented on the market. For all those interested in a pure liquid manure biogas plant, I recommend asking the provider from what number of livestock units and annual volume of manure ... Are the systems for normal farmers or only for large farmers from 150 LU?

  9. The livestock units should be over 75 for a 150 kW system. The range that is called by different system manufacturers is very different and so I heard numbers between 300 LU and 600 LU. If you are driving in liquid manure of 150 GVE, you should not check off the construction of a mini biogas plant right away, since you can also operate a mini BGA under 75 kW. In these cases, it is particularly important to create a comprehensive concept in advance.

  10. Stephen Rosenbaum

    STEROS GmbH in Templin builds completely new biogas containers with an integrated patented hydrolysis process. The result is shorter residence times and a very low hydrogen sulfide biogas.
    The plant is suitable for slurry plants as well as for waste fermentation plants. Local residues and food residues can be recycled. By installing in standard containers, the systems are compact and easily expandable. A self-sufficient series for operation in remote locations is available!


    The system essentially consists of one
    Acceptance area, a hydrolysis unit, a
    Fermenter, a recyclate container as well
    a separation device.
    Via a pre-tank with
    integrated shredding unit, the continuous feeding of the solids is realized.
    Then they arrive with the liquid flow
    in the hydrolysis tank. In the hydrolysis tank
    the first two phases are running
    the fermentation process (hydrolysis and
    Acidification phase). Through spatial separation
    of the phases we achieve more efficient substrate utilization
    as well as an increase in gas yield. This patented process produces a high purity gas (with very
    low levels of hydrogen sulfide). The
    Process is integrated in the biogas container,
    so that gas recycling without complex
    Desulfurization is possible. The low in hydrogen sulfide
    Gas is initially in one
    Gas storage pillow stored and can then
    condensed and further used

    Modular and flexible

    The biogas produced is stored in external gas storage cushions
    kept. Their sizes can be customized
    Location conditions are adjusted. Different
    Gas recycling routes are possible and can
    be chosen by the plant operator himself. The
    The system is also modular by any number
    additional container expandable and can therefore be universal
    can be adapted to every energy requirement and amount of substrate.

    Energy self-sufficiency

    The biogas plant uses to cover its own energy needs
    renewable energy sources eg photovoltaics,
    Solar thermal or wind power. An energy storage ensures
    for the provision of energy even during poor
    Weather conditions. Optionally, the regenerative
    Renewed energy generation and electricity from the
    local power grid. This enables it to be used exactly where there are substrates. Reduces transport costs enormously and brings energy to even the most remote areas.


    Due to the very low proportion of hydrogen sulfide, the gas produced is extremely suitable for further processing. Compressed, it is easily transportable in the gas tank, can be fed into existing networks, or used as refined CNG as fuel for vehicles.
    It is of course also possible to operate a CHP plant for electricity and heat generation.

    Location advantages

    There is no complex operation of our biogas containers
    Infrastructure necessary. A straight surface is sufficient to install a system. Since the containers can also be placed one above the other, the space requirement is low. The systems can be moved quickly and, if necessary, can be quickly rebuilt where they can be operated profitably.

    Service and training

    To ensure the safe operation of the systems,
    we offer all buyers training and monitoring of process biology.

  11. Roland Goesswein

    Hello Mr. Kirchner, a mini biogas plant should be something for private horse owners, right? We currently have 7 horses on the farm. Can a minnibiogas plant be operated with their manure? How high would the costs be?
    Best regards

  12. Hello Mr. Gößwein, 7 horses are unfortunately not enough even for the operation of a so-called mini-biogas plant. To operate a system with 75 kW you need about 500 LU. With 7 horses, the economic operation of a biogas plant is not possible in my opinion. Perhaps you can use the horse manure for an absolute small system (max. 5 kW) in a batch process. This would then not feed any bio-electricity into the grid (EEG remuneration), but could contribute to the decentralized energy supply.

  13. Hello Mr. Kirchner, I would like to find out whether this system could also be used for companies? The amount is about 400 kg a day of different articles: fruit, yogurt, milk, meat but also cheese etc. Could this work?
    With kind regards,

  14. Seibeld Reinhold

    I am looking for an absolutely small biogas plant that can be fed with a household and some chickens, rabbits, ducks and the resulting waste. The purpose of the system is not to feed electricity into the grid, but to save energy. I think that a small system also makes sense if you only produce gas for cooking. I would appreciate any suggestions.

  15. A supplementary list for “dry fermentation plants” would be nice. You don't need any manure anymore (if you want to / have to stop keeping animals you are on the safe side).

  16. The dry fermentation plants also have the advantage that they can also use substrates that are not suitable for consumption. The mini-biogas plant that can / must work in dry fermentation must also be operated in a batch process (discontinuously), which in turn makes a MOBILE mini-biogas plant possible.

  17. Hello Mr. Kirchner,
    Thank you first for your article, the good listing and also your willingness to provide information.
    I have four horses and would like to know from which manufacturer you can get such a small system with a maximum of 5kW.
    Maria Ray

  18. Hello Ron
    we are looking for an environmentally friendly use of (dry) horse manure of approx. 50 - 60GVE; can you recommend a system for this?
    Possibly. we would also build something ourselves.

  19. The mini biogas plants are the most common in Bavaria and I recommend them Biogas Association (Straubing) as the first point of contact for the implementation of a mini biogas plant. This represents most of the plant manufacturers, is well networked with the various players and can certainly help with the implementation of a biogas plant based on horse manure. Greetings, Ron

  20. Is it theoretically possible to heat a volume of 1600 m³ in winter with a biogas plant? How much does a system like this cost when you buy it? Is the system funded by the KFW or similar institutions? I am looking for a way to heat 640 m² of living space. However, only the following would be available as organic material: 7 toilets with different numbers of residents, lawn, garden clippings, hedge clippings, organic household waste and sawdust or wood shavings from a carpenter's workshop. I don't know how much more biomaterial would be needed. In summer the gas could be collected and in winter it could be consumed. Currently, about 5000 liters of heating oil are consumed by the energy requirement. Everything else like boiler light and similar for warm water is generated electrically. Approx. 7000 KWh of electricity is needed for this in one year. A photovoltaic system with 12,03 kW is mounted on the roof and the price commitment with the energy supplier will end in the next 3-4 years. The system is one of the first to still produce direct current, which is then converted into alternating current (Würth system) What could you do with it?


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