Roadside grass clippings are a problem fraction throughout the 2 Seas Programme area due to their high volume, subject to high processing costs. The industrial sector, however, is interested in the possibility of using roadside grass clippings as an alternative resource (as opposed to fossil sources or dedicated agricultural produce).

The common challenges for applying roadside grass clippings as a renewable feedstock in industrial processes are currently threefold:

the supply chains are not yet optimal, resulting in higher costs a highly variable and heterogeneous supply an unsupportive institutional framework leading to legal and political challenges

The opportunities to be addressed by the Grassification project can thus be situated at different levels of the roadside grass clippings value chain, hindering altogether the use of grass clippings by the industry as a renewable resource (and thus hampering the pursuit of a biobased and circular economy).

About the project  

The overall objective of the Grassification project is to apply a multi-dimensional approach to roadside grass clippings refining in order to optimize it into a viable value chain for the biobased and circular economy. The project commits itself to optimize logistics and technical aspects of the grass clippings supply chain and processing, demonstrate its market potential as well as formulate policy and legal recommendations to create a more supportive framework for the recycling of this renewable resource.

These actions will increase the volume usable material, lower costs, and generate a higher added-value for this so called ‘waste’ streams, which eventually will result in a higher market value of the industry. In this way, the use of roadside grass clippings as a renewable resource for the production of biobased products and hence the circular economy will become more attractive. Roadside grass clippings refining thus facilitates transition towards a circular economy.


Commercial outcomes

For achieving these goals, the Grassification project will have, as main outputs:

  • A novel mowing head aiming at improving the quality and reducing the sand content of the grass clippings
  • Technology tested for decentralized biogas production from the co-digestion of grass clippings with other feedstocks
  • Technology tested for bulk processing of grass into biogas
  • Products made out of grass fibers, such as a picnic set, stepping stones and insulation panels
  • Report on possible applications of the liquid fraction of grass
  • Model developed for joint procurement and performance contracting
  • Techno-economic assessment of the most promising value-chains
  • Supply chain optimization model
  • Policy roadmap

The stakeholders benefitting from these outputs are: road and land managers, SMEs and large entreprises, research institutes and centers, policy makers, and other stakeholders like e.g. the building sector for applications of bio-composite load bearing structures.


4 421 681 €
United Kingdom
The Netherlands
Grassification tests new mowing head

Roadside grass clippings are a problem fraction throughout the 2 Seas Programme area due to their high volume, subject to high processing costs. The industrial sector, however, is interested in the possibility of using roadside grass clippings as an alternative resource for the production of energy and bio-materials.

Workshop Grassification: roadside grass as raw material?

On June 18 Grassification organized a demonstration and workshop in Maldegem. Stakeholders came together to compare the clippings of two different cutting heads and to view the refining of the grass by pressing. Various applications were also discussed for the grass fibers and grass juice. 

Research project for applications with roadside cuttings

The West Flanders Province participates in the European 'Grassification' project. Within that project, applications are being sought to upgrade roadside grass / roadside grass into raw materials.

Silage verge grass

At the end of October, roadside grass was cut in Harelbeke as part of the Interreg Grassification project. 

That verge cuttings were then ensiled on Inagro for storage and feeding in the anaerobic digester in a few months.

Deliverable 1.1.1 Support development new type mowing head aimed at minimising dirt content via a co-creation strategy

Within the Grassification project a set of quality criteria for alternate uses of grass biomass will be discussed and will be provided to equipment developers & field-test equipment as developed by machine builders to serve the needs of biomass refinery processes.

Deliverable 1.1.2 Report: Testing & comparison of performance new type of mowing head against existing mowing heads

An important goal within the Grassification project is to use road side cuttings as feedstock for material and energy. To serve that goal the Grassification project started the development of a new type mowing head in cooperation with the different partners to work towards a quality of grass cuttings useful as material and/or energy application. 

Deliverable 2.4.1 Production fibre pellets from roadside clippings as half-finished product for biocomposite production

Pro Natura, Hogeschool Gent, Millvision, Delphy and Innec will jointly develop & demonstrate a production method for fibre pellets to be used as half-finished product for biocomposite production.

Deliverable 3.1.1. Market study

The Grassification project assesses the viability of innovative verge grass value chains by means of a techno-economic assessment (TEA). The goal of this market study is to address the market trends, related prices, competitive processes and applications of the most promising Grassification value chains.

Stakeholders' corner

We are pleased to invite you to be part of the Grassification platform, which will function as a knowledge database for all Grassification stakeholders.

This platform will offer you the opportunity to get the first access to project's deliverables and results as well as to receive first-hand invitations to our events.

Your participation is voluntary and free of charge. Your data will be treated according to the EU General Data Protection Regulation and for the project's purposes only.



Dr. Erik Meers

Ghent University Laboratory of
Analytical Chemistry and Applied Ecochemistry


Ghent – Belgium

Phone: +32 9 264 93 96


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