In the project Watts in Grass!? technology developers, agricultural enterprises, and knowledge institutions in the border region are working together to develop and demonstrate an innovative energy system that uses grass, grass-rich residual streams, and digestate as feedstock for sustainable energy and high-value biochar.
At a demonstration site on a farm, several modern environmental technologies are combined: grass is fermented more efficiently, CO₂ from the digestate is converted into additional methane using green hydrogen, nitrogen is removed to reduce emissions, and fiber-rich residues are processed into high-quality biochar.
Beyond technological development, the project focuses on the entire grass processing chain. It analyzes the availability of feedstocks, logistics, legislation and regulations, as well as market opportunities. A dynamic process model for scaling up the investigated processes, life cycle assessments, and techno-economic studies provide insights into the impact and feasibility, forming the basis for concrete business models. The transferability of the approach helps farmers and companies apply and expand circular solutions effectively.
Watts in Grass!? promotes collaboration between entrepreneurs, farmers, and research institutions, gives partners the opportunity to test their innovations and prepare for future market demands after the expiration of existing subsidies (such as the EEG), and contributes to emission reduction, sustainable agriculture, and developing of new value chains. The project thus delivers knowledge, technology, and practical experience that strengthen the position of the border region and offer perspectives for broader application in the Netherlands, Germany, and beyond.
