2. The Company:  More than 12 years of experience in designing, planning and construction of biogas power plants.  Input of the first plants: organic waste (fats and flotates); Weser-Ems region: intensive livestock farming  Biogas-boom since amendment of the EEG (law on renewable energy) in 2004  More than 250 biogas plants built  Installed capacity over 140 MW el

3. Headquarters : biogas weser-ems GmbH & Co. KG Zeppelinring 12-16 D-26169 Friesoythe Branch office Großenhain Carl-maria-von Weber-Allee 51 01558 Großenhain bentec bioenergies SL Calle Sant Josep, 14 17176 Sant Esteve d´en Bas (Girona) Spain Affiliates: Biogaz-tech Spółka zo.o. ul. Długa 44 63-200 Jarocin Ies biogas Srl Via T. Donadon, 4 I-33170 Pordenone - ITALY The Company:

4. Energy For The Future Biogas  versatile source of renewable energy: providing electricity and heat  reduction of harmful methane emissions  CO 2 neutrality  environmentally friendly way of preserving resources

5. Biogas Flow Diagram

6. Planning and Project Development Project  Conception  Quotation  Financing Assistance  Approval planning

7. Plant Construction Building phase  bwe installation teams set up the agitators, gas storage roofs and pipelines  Use of low maintenance and energy-efficient agitators  Connection of the high performance CHP units with engines upward of 190 kW

8. Technology Biogas plant  User friendly process control systems  Control of individual plant components and documentation of the control parameters  Remote access to the control system

9. Natural Gas From Biogas Biogas Preparation  Often there are no possibilities to use the heat economically  Upgrading of biogas to natural gas quality  Transportation through the existing natural gas network  Alternative use as fuel for vehicles

10. Heat use Transportation of heat  Increasing efficiency by utilizing surplus heat  Use of district heating for nearby houses and stables  Wide variety of possible consumers, e.g. heat for drying plants (cereals or digestate)  Arbitrary choice of temperature level (default at 85 °C)

11. Micro-Gas Distribution System Transportation of biogas  the CHP is placed next to the heat consumer  transport of biogas to the CHP unit through a gas pipeline  lower investment required compared to district heating  more efficient use of thermal energy, no losses during transportation

12. 7 L 2007 1131 kW + 190 kW Energy crops 1 x Ø 23 m 1 x Ø 28 m Reference Plants Naturgas Ardorf Technical Parameters: Year of construction: Power kW el : Substrates: Digester: Post-digester: Storage:

13. Biogasanlagen Heinfelde (NawaRo) 7 L 2006 835 kW NawaRo 2 x Ø 25 m 1 x Ø 25 m Technical Parameters: Year of construction: Power kW el : Substrates: Digester: Post-digester: Storage:

14. Biogasanlagen Heinfelde (Kofermente) 7 L 2006 1064 kW + 500 kW Organic Waste 2 x Ø 25 m 1 x Ø 25 m 1 x Ø 30 m Technical Parameters: Year of construction: Power kW el : Substrates: Digester: Post-digester: Storage:

15. Biogaspark Felgentreu 7 L 2007/08 10 x 844 kW NawaRo 10 x Ø 23 m 10 x Ø 26 m Technical Parameters: Year of construction: Power kW el : Substrates: Digester: Post-digester: Storage: