Biogas plants - Stadtwerke Gießen AG

Heat from biomass

The biogas plants in Großen-Buseck and Heuchelheim are key components of our in-house generation of heat and electricity. Here, locally available, regenerative raw materials are utilised as a source of energy.

In the fermenters of our biogas plants, a mixture of grass and maize silage with cattle slurry and manure is first fermented into biogas, which is then used in the biogas plant's combined heat and power plant to generate heat and electricity.

Biogas plant Großen-Buseck

System data

Partners involved	51 % SWG
	24.5 % Farming family Klos
	24.5 % Engineer Besim Krasnici
Input	30 % Grass silage
	30 % maize silage
	40 % cattle slurry
Output	Heat: 3,200,000 kWh/year
	Electricity: 2,250,000 kWh/year
CO2 savings	2,400 tonnes/year

Heuchelheim biogas plant

System data

Partners involved	51 % SWG
	49 % Farmers Hans and Thorsten Klug
Input	around 40 % grass and maize silage
	Around 60 % cattle slurry and manure
Output	Heat: 2,000,000 kWh/year
	Electricity: 1,700,000 kWh/year
CO2 savings	1,600 tonnes/year

Advantages of biogas plants

Biogas is a regenerative energy source from renewable and locally available raw materials
No long journeys and delivery routes as the biomass comes from the region
Biogas plants supply electricity and heat regardless of the weather
Neutral carbon footprint when burning biogas: only as much_CO2 is released as the biomass previously removed from the atmosphere during growth.
Utilisation of unused plants and plant parts (e.g. catch crops, plant residues)

Technology

Diese Illustration beschreibt die einzelnen Komponenten und den Fluss innerhalb des Biogaskreislaufs einer Biogasanlage.

CHP of the month

The Großen-Buseck biogas plant was honoured by the trade magazine ENERGIE & MANAGEMENT as CHP plant of the month.

Biogasanlage Buseck