Renewable Energy – Solutions for application in the communal energy infrastructure

EXAMPLE PROJECTS |
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Germany: Electricity, gas and heat from chicken manure and energy crops
The biogas plant supplies 60 gigawatt hours of energy annually, enough to heat 4,000 homes.
In the small town of Forst in Lusatia, a region in
eastern Germany dominated by lignite, the company
“Bioenergiepark Forst GmbH & Co. KG” has been feeding
biomethane into the natural gas grid of the local
operator Ontras VNG since 2014. The biogas is obtained
from the fermentation of poultry manure and renewable
raw materials.
The treatment plant has a capacity of 700 standard cubic
metres per hour. Each year, it supplies biomethane with
an energy content of 60 gigawatt hours – enough to
heat 4,000 homes.
The plant uses a special gas treatment process named
EnviTec Biogas AG, after the company that designed it.
The hollow fibre membranes used enable a gas purity of
96 per cent methane. The arrange ment of the membranes
in a horizontal cartridge system within the plant
ensures that twice as much biogas can be purified in
the same space as with conventional processes.
The special gas treatment process enables a gas purity of 96 per
cent methane.
In addition to the processing plant, the biogas is also
used to operate a combined heat and power plant,
which has an electrical output of 549 kilowatts.
Chicken manure and renewable raw materials ferment in the
fermenters, thereby producing gas.