Project meeting of STEP at the site of the company ATS - Agro Trading & Solutions in Hardegsen (Photo: DBFZ)

Heat System studies

Project ID 03KB107

Green-OPTI - Optimizing the Collection, the Processing and the Integrated Recovery of Material and Energy from Green Waste in Germany

Shredding of woody green waste (Photo: Witzenhausen-Institute)


  • 01.06.2016 – 31.05.2018


Witzenhausen-Institut für Abfall, Umwelt und Energie GmbH
Werner-Eisenberg-Weg 1
37213 Witzenhausen

Thomas Raussen – project manager
Telephone: +49 (0)5542 9380-15

Dr. Felix Richter – project coordinator
Telephone: +49 (0)5542 9380-25


Associated partners

Cooperation partners



Results are only available in German.

Subject and aim

The project focuses on the yet insufficient exploitation of the potentials of green waste as resource for energy production (solid fuel) as well as compost production.

Green-OPTI’s particular focus consists of a comprehensive analysis of the actual state of green waste collection in Germany, of a presentation of treatment and recovery options as well as of the elaboration of success criteria for  a “woody green waste value chain”. In addition, relevant influencing factors of green waste treatment with regard to the production of high-quality composts and solid fuels will be analyzed and optimized in cooperation with companies in practice.


  • Potential analysis
  • Analysis of the legal framework
  • Collection of green waste in the municipalities
  • Treatment and recovery of green waste
  • Optimizing the quality of solid fuels
  • Development of concepts for a green waste value chain


  • Green waste
  • Integrated material and energy recovery
  • Potential analysis
  • Legal framework
  • Solid fuel
  • Municipal concepts


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