Since December 2021
Green-to-Green
The first private organic waste collection project of its kind in Davos. In this project is organic waste is separated, collected and then used to produce biogas and ultimately to generate electricity.
The project run a succesful pilot from December 2021-2023 with the Biogas Plant Davos and Guyan+Co AG Davos with currently 90 households. Now we are ready to scale up the project.
The pilot
In December 2021 we started the pilot with Guyan and Co. in the Bunda-quartier. The project was discussed at the General Assembly and a suitable location was found to place containers. GreenUp created information flyers as well as posters and instructions for all households.
It took about a year for the trash to only contain the items that are allowed, and not other items such as plastic bags or wood.
The good thing of a Biogas-plant is that one can even process cooked food, plus more types of food-remains. Whereas with a compost-solution it is more restricted, but one creates super-healthy soil (if done well) which is what our soils much need.
The project continues to run and once per year we make up the balance and see what points for improvement there are.
About this Project
Organic waste is a resource and does not belong in a waste bin. This is what motivates us from the non-profit GreenUp to encourage people to use their waste into compost, or for larger groups, to turn it into energy.
A succesful pilot with the Biogas Plant can now be scaled-up and we are very happy to welcome a selected number of new partners in 2 phases:
PHASE 1: Until mid-2024 extend the pilot as to comprise 3-4 partners, including one private property.
PHASE 2: From mid-2024 onward open up to more partners in Davos.
The partnership
Participating households have the opportunity to deposit their organic waste in a dedicated container located in an enclosed space. The container is regularly taken by Toni from the Duchli Ranch to the Biogas plant for emptying, when needed, and then returned empty.
Win – win situation
Why partner up with GreenUp and join “Green-to-Green”?
- Economic aspect – the waste in the blue regular garbage bags could be reduced up to 40%
- Ecological aspect – biological waste will not go to the incinerator, which reduces CO2 production, yet creates green energy.
- Local aspect – through your participation you will support a local sustainability project that is enhancing circularity and tangible changes in Davos.
Requirements
- A contactperson for Toni, who is responsible for keeping an overview of the process, call Toni when a container is full. This could be a facility manager or another person.
- A location which can be closed off and fits 1, ideally 2 containers
- A signed partnership with GreenUp
- Ensure all households actively sign-up for the project and understand the guidelines.
- GreenUp provides all necessary tools and information.
GreenUp Partnership
- We propose a partnership with a starter contribution and then an annual fee for keeping the project alive.
- Take-In and creating setup
Inform and support households about proper use - Pick up whenever needed, on average 2-4x a month
- Information website for participants
The exact costs we are still figuring out, we are happy to discuss those at a first meetup.
Useful information
- Each household should have their own small small container biological waste in their household. This small containers are not provided.
- Two big containers that provided from us should be filled one after other. Not both in once.
- If one container is full, the authorized person always calls the day before to take it away.
FAQ
- Can people put their biodegradable plastic bags in the container? yes
- Are household-containers provided? No, for inspiration however, see here
- Can I be part of the project if I am from a private household? We will do a first pilot now with a complex of more private households. We plan to scale up the options over the coming years.
From Green Waste to Green Energy: the process
The system is capable of producing a maximum of 800,000 kWh of OEKO electricity per year at full operation. This capacity can supply energy to up to 150 households. Biogas stands out among renewable energies due to its versatility. It can be easily, cleanly, and decentralizedly produced from organic waste and integrated into supply networks in the form of electricity, heat, or, after appropriate processing, biomethane. This flexibility allows biogas to be used as an energy source adaptable to both space and time.
Organic substrates are stored in a silo and a receiving pit. From there, the mixture is transported or pumped to a fermenter, where it undergoes fermentation with constant stirring. During this process, biogas is produced and collected under the flexible tent roofs of the biogas station. Subsequently, the gas drives an on-site decentralized generator, where it is converted into electricity and heat. Alternatively, biogas can be decarbonized in a processing plant and injected into the natural gas network as biomethane.
For users
If your house is part of a Green-to-Green partnership, please before you begin with sorting your bio waste. Check out the information below and take our quiz to ensire, we can process your waste best and cleanest. For any questions you can contact davos@green-up.ch or pass by in the GreenHubDavos.
Our Partners
