Biogas Technology

1
Biogas Technology

• Decentralised Energy Production
• Basics and
• Current Situation in Germany

2
Possible input materials

• Energy production from biomass
• Agriculture Slurry and solid waste
• Slaughterhouses organic waste and sewage waste
  (e.g. blood, fat and offals)
• Agro-industry e.g. Sisal, pulpe from fruit juice
  production
• Dairy Whey, waste water
• Energy plants
• Organic waste from municipals
• Sludge from waste water treatment.

3
What happens in the biogas digester?

• Biological degradation in a digestor under
  anaerobic condition
• Thus transformation into Biogas (Methane)
• Utilisation in a CHPS (combined heat and power
  station) into electricity and heat
• Production of organic fertilizer

4
Law in Germany

• Electricity is purchased by national grid
• Prices for renewable energy are determined by law
  
• The law is valid for 20 year
• The energy producer receives 0,10 US for each
  kWh

5
Current situation in Germany

• There are approx. 1.500 Biogas plants in
  operation
• Capacity between 15 kW and 3.000 kW
• Average ca. 50 KW (equiv. 1000 Lamps with 50W)
• At present the total power capacity is approx.
  150.000 kW (150 MW)

6
Situation in Kenya

• Unreliable Energy supply
• Pollution from waste water and organic waste
• The organic waste is hardly used
• Electricity is partly produced from imported
  fossil fuel

7
Advantages for Kenya

• Environmental relief
• Reduction of environmental pollution
• Use of gas oil reduced
• Waste water and sewage treated
• Energy production from renewable energy
• Heat production
• Organic production of fertilisersch
• Nationa grid is stabilised
• Generation of employment in a future field