Biogas plant Kaarßen

Services provided

Feasibility study
Authorisation planning
Implementation planning 
General contracting 
Initial operation / trial run

Type of plant

Fermentation of slurry and energy crops

Location

Amt Neuhaus, Kreis Lüneburg, Niedersachsen, Germany

Initial operation

IV. quarter 2005

Operation process

2-stage - two parallel steel fermenters in combination with a concrete fermenter switched in turn

Temperature range

mesophilic

Fermenter

2 x 5.600 m³

Secondary fermenter

1 x 2.780 m³

Final storage tank

1 x 7.712 m³
2 x 5.470 m³
2 x 8.000 m³

Feedstock

Cattle slurry
Maize
Total

120.000 t/a
35.000 t/a
155.000 t/a

Gas utilisation

Type 
Power electr.

2 x gas-CHP
1.420 kWel each

Energy production

electrical

thermal

20.000.000 kWhel
-> requirements of 5000 households
20.000.000 kWh
-> equivalent to 2.000.000 l heating oil

Use of thermal energy

Utilisation of approx. 20.000.000 kWh heat in a vapour system

Special features

  • production of manure concentrate by passing the final feedstock through a vapour system
  • complete utilisation of the heat
  • co-financing and operation of the plant by BioConstruct

Location