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Biogas Plant in Batka, Slovakia

FIGA is a large-scale farm in Batka, district of Rimavska Sobota, with pigs and 220,000 egg-laying hens. In response to an initial problem of animal manure disposal, a biogas plant was built in 1992-95. The owner of the farm paid half of the costs of the project and the Slovakian ministry of agriculture covered the other half. The payback time is estimated to be 6 years. The technology used is a mix of Austrian know-how (Bauer) and domestic suppliers.
    Since its installation, the biomass plant has received 166 t. of animal manure a day from the farm and provides the farm with:

Electric power:
9,501 kWh/day
3,469 MWh/year
24.9 GJ/day (winter min.)
41.2 GJ/day (summer max.)
32.8 GJ/day (annual average)
11,972 GJ/year

The remaining product - the digested sludge - is a high-value fertiliser used on the fields.

The benefits of the biogas plant
On the farm:

  • own, stable, self-sufficient energy production (electricity and heat)
  • cheap energy, which yields financial savings in the longer term.
  • possibility of selling energy surplus - a source of extra income for the farm.
  • reduction of obnoxious smells from the manure
  • solution of the manure-disposal problems
  • production of high-volume fertiliser that carries a higher content of nitrogen (15% more) than artificial fertilisers, and that does not burn the crops, as un treated slurry can do. This reduces the need for expensive artificial fertilisers.
Local benefits:
  • better control of the waste from many animals means less pollution of local environment and water sources.
  • a veterinarian aspect: In the bioplants, viruses are killed. The risk of spreading animal infections in the area is thereby reduced.
  • removal of chemical fertilisers from the fields and recirculation of nutrients results in healthier vegetables and fruits for human consumption.
  • local power plants contribute to creating permanent local jobs in the area.

On a national basis, widespread use of the biogas plants could deliver a badly needed means of energy self-sufficiency, and the decentralised structure of the biogas plants means less need for expensive distribution of energy in rural areas. On a global basis, it reduces the use of fossil fuels and, thereby, emissions of CO2. At the same time, biogas plants control, and therefore reduce, the emission of methane, a greenhouse gas that is 20 times more aggressive than CO2.

 Name and type of project 
 Batka Biogas Plant, Slovakia 
 Starting year  1995
 Overall cost of the project  2.8 mill. USD
 Energy amounts produced  Electric power: 3,468 MWh/year
Heat: 3,300 MWh/year
 New local jobs  8
 number of similar projects  2
 Contact person  Ing. Milan Cerný, CONSA,
Svatoplukova 31, Bratislava 82108, Slovakia.
Ph: +421 7 213285