Details on the florafuel Plant

The florafuel Plant

Bioenergy for Covering Base Load Requirements

With the florafuel Plant, local authorities, farmers as well as operators of compost and biogas plants receive an innovative technology which allows humid biomass and biogenic waste to be converted into CO2-neutral energy sources. Biomass types suitable for processing include grass and marshland cuttings, roadside cuttings, foliage, silage and fermentation waste. The energy sources generated in the florafuel Plant (cf. image below) in the form of pellets and briquettes are not only characterised by a high calorific value but also by an extremely positive energy balance. This enables the power of hitherto unutilised energy resources to be harnessed in a cost-efficient and environmentally sound way. 

Significantly Higher Energy Yield Compared to Fermentation

The current generation of the florafuel Plant already achieves a throughput rate of up to three tonnes of humid biomass (grass) per hour and enables pellet production of up to 550 kg per hour. Taking into account the energy content of the press water, the energy gain per tonne of pellets amounts to 3,580 kWh (87% dry matter). This means that operators of a florafuel Plant make an energy gain of 620 kWh per tonne of fresh grass (20% dry matter), which is converted into fuel using the florafuel Procedure. In this context, calculations show that the energy yield from one tonne of fresh grass processed into fuel using the florafuel Procedure lies at around 15 percent higher than that with whole-plant fermentation in a biogas treatment works. If the production heat cannot be utilised in the biogas plant, the energy gain achieved from one tonne of fresh grass using the florafuel Procedure is as much as 3.4 times higher than that attained using fermentation.

Section of the florafuel Plant (test environment)

Based on the current throughput rate mentioned above and assuming (realistically) that the florafuel Plant runs for 5,000 operating hours a year, CO2-neutral fuels with an energy content of around 11,100 MWh could be supplied per year from a single florafuel Plant. This corresponds to a heating oil equivalent of around 1.12 million litres or, to put it differently, to an annual savings potential of over a million litres of heating oil. This means that by using biofuels generated in a florafuel Plant, the CO2 emissions can be reduced by 2,900 tonnes per year. Furthermore, florafuel Plants prevent the emission of trace gases, in particular methane, nitrous oxide and ammonia, which are generated during the intensive rotting or post-rotting stages of composting and fermenting or when spreading the digestate.


Taking into account the significantly enhanced energy balance of florafuel Plants compared to energy generation through fermentation in biogas plants as well as the cost-efficiency and environmental benefits of florafuel technology, the use of florafuel Plants represents an attractive alternative to comparable forms of energy production from biomass – both from an ecological and economic perspective.

Cross references