WHAT is a biogas digester? 

A biogas digester is a technology that allows the production of biogas from organic feedstocks.

This technology provides the ideal conditions for the activity of microorganisms that degrade organic matter and generate biogas as a byproduct of their life cycle.

Therefore, although this is a man-made device, it takes advantage of biological processes that take place also in natural environments.

The processes that are involved in biogas production take the name of “anaerobic digestion”. As the name suggests, such processes take place in absence of oxygen; indeed, a biogas digester can be simply described as a closed tank in which reactions take place.

Furthermore, the reactions that take place inside a biogas digester are the same that occur in our stomach, as well as in the stomach of other animals. In other words, a biogas digester can be assimilated to our stomach; whereas the biogas that is produced inside a digester can be assimilated to… well, you can imagine …flatulence or however you prefer to call the intestinal gas that is expelled from our bodies!

In the same way we eat food, a biogas digester must be fed with biodegradable material. Almost every kind of organic material can be used to run a biogas digester. Anyhow, in order to enhance the sustainability of biogas projects it is preferred the use organic waste materials, instead of purpose-grown energy crops, such as maize. This choice is due to the need to minimise the environmental impact of our biogas production; and reconsidering waste as a resource rather than a burden that must be disposed of is amongst the most sustainable choices that we can make!

Finally, the outputs of a biogas digester are also to be considered as valuable materials. First of all the biogas can be used as fuel for cooking or for the production of electricity. A second product of anaerobic digestion processes is a relatively nutrient-rich slurry that can be applied to soils as a liquid fertiliser and soil conditioner.

Wrapping up, biogas digesters are a simple technology that can generate multiple benefits:

  • Produce biogas

  • Produce liquid fertilizer

  • Recycle organic waste streams


In the summer of 2017 we were a team of EVS volunteers who decided to take on the project of foreseeing the biogas digesters transportation to Ängsbacka, Sweden and its representation at the Global Ecovillage Network Conference 2017.

After Suderbyns completion of building the biogas closed loop system it is time for the biogas moulds to travel to new communities and further the movement of this sustainable alternative source for energy.  


A few of us from the EVS team have agreed to further our volunteering and help with the coordination of the biogas digester and to support the process of bringing it to as many communities throughout Europe as possible. All with the intention of working towards a more sustainable, decentralised and greener future. 

Join us and become a part of the movement by getting in touch with us to see if perhaps your community will be the next one to welcome the biogas digester moulds. 


As we are a team of volunteers and this project is funded by GEN and through privat donations we are grateful to anyone who feels like they can contribute to the movement somehow.

We are looking for students/experts/anyone who is interested in biogas, who has:

  • knowledge of legal aspects in regards to building a biogas digester in Europe

  • knowledge of transportation and ideas of how to be cost and sustainably efficient 

  • knowledge of closed loop systems 

  • feels strongly about the movement and would like to support us financially. Please get in touch with us or donate to the biogas account (see contact info below). 

We look forward to collaborating with you and to getting as many people inspired, involved and motivated! 

As this is a donation based project we are also looking for further donations which you can support by clicking on the button to support the cause : )  

the TEAM 

Connie from Germany has found her passion in sustainability through the Gaia Education course. She loves nature and the idea of using innovative solutions to create a better more sustainable future. Believing in holistic ways and the interconnection between all she hopes that through the biogas digester project we can help to push these values within our communities setting an example for a sustainable, very green future! 

Marta from Spain is an architect that has always been aware of the impact of her profession in the environment and wanted to do something about it. She studied a Master’s degree in Environment and Bioclimatic Architecture and started to get involved with different associations and NGOs in sustainable projects. She believes that there are clean alternative sources of energy and with the Biogas Project, she hopes to empower people in the production of domestic energy.

Oli from Italy nurtures a passion for environmental issues, this led him to obtain a master's degree in Environmental Engineering and Management.

Now he would like to put his knowledge into practice to better the livelihood of people and -at the same time- improve the conditions of the environment in which we live.

He believes that the spread of a technology for the domestic production of biogas works in the right direction, therefore, he is glad to contribute to this project and he hopes that it will reach as many ecovillages as possible!

Ricky from Italy has recently joined the council of GEN Europe as the youth/NextGEN voice.
His passion's are based around community life, group dynamics and sustainable solutions, and making these part of everyday life for the people around him.
His academic studies focused on International & Rural Development and anthropology; He also worked in community led vegetable garden projects in Auroville, India.
He currently lives in an intentional/spiritual community called 'Community of Living Ethics', in the Umbria region of Italy.

All supported by GEN 







All information related to the biogas digester.

Collection of many different informations from various sources where we have created a space here on this website with all links and documents gathered for you to check out. 

These include: 

  • Info graphics and slideshows about the biogas digester

  •  Legal aspects to consider for your country

  • Transportation options 

  • Setting up the biogas digester

Co-ordination of the biogas digester

In order to stay in the loop of the where abouts of the Biogas Digester throughout Europe we have created a virtual map where you can see where the Biogas is, where it has been and where it will be heading next. You will also find contacts for various countries that can help with the logistics of transport. 

Biogas Network 

Gathering contacts and institutions to get in touch with, to help support and guide you with bringing the biogas digester to your community.  



first GEN biogas digester built in Europe


donated biogas digester mould covers left

times traveled throughout Europe


ecovillages left to install a biogas digester


With the Closed Loop project you are able to develop and construct a functioning prototype of a circular system for a small-scale food and energy production, even in cold and biologically sensitive areas.

In contrast with conventional linear agricultural and industrial approaches causing nutrient run-off, the Closed Loop system recycles the nutrients in food and energy production, recirculating them between a biogas digester and soil-free cultivation (aeroponics), using domestically produced renewable energy.  


A combination of domestic biogas production, soil-free food growing and a set of innovative low-impact environmental solutions for local resilience.








For any inquiries, questions or commendations, please email us at biogas@gen-europe.org

Head Office     Legal Seat

Palacio del Pirineo 

Calle abajo no 1

31480 Artieda (Navarra)


Rosa-Luxemburg-Str. 89

14806 Bad Belzig


To Contribute 

To contribute and support in any way you may see fit please email us at


To Donate

Postbank Berlin 

IBAN: DE 11100100100007681105


Subject: Biogas Digester 

Success! Message received.