In Slovakia´s city Horovce, biomass from agricultural production is processed into biogas. It then generates electricity, heat and organic fertilizer. Remaining heat, which is not consumed for electricity production, is used in heating and domestic hot water systems in buildings.
However, after fermentation, the waste material still remains full of nutrients - phosphorus, nitrogen, and potassium. Getting rid of it would be a shame! That is why farmers spread it across the fields and use it as a fertilizer. The raw material is therefore used twice, which makes a lot of sense in terms of sustainable development and environmentally friendly use of natural resources.