As with the standard digester, the Hoffermenter also focuses on a natural circular economy. Plant and animal waste is converted directly on the farm, in a closed-loop process, into renewable energy and high-quality raw compost.
The farm-based digester is particularly suitable for farms with around 30 horses or more and approximately 300 tonnes of manure per year. With a footprint of just around 250 m², including handling space, it offers a compact solution for decentralised processing directly on the farm.
Within around three weeks, the horse manure is converted into raw compost. At the same time, biogas is produced, which can be used, for example, for heating, electricity generation or – after appropriate processing – as bio-LNG for commercial vehicles.
The system also offers great potential in terms of energy: extrapolated, the residual materials from around six horses can cover the annual energy requirements of a four-person household, amounting to approximately 25,000 kWh.
In this way, the farm-based digester closes the material cycle directly on the farm: it combines renewable energy generation with high-quality compost production, keeps valuable nutrients in the cycle and, through humus formation and improved soil fertility, supports sustainable and independent farming.