1. 14 June 2011 Integrating biogas in the regional gas grid

2. 14 June 2011 Renewable gases Renewable Biomass Gasification Anaerobic digestion Direct use Upgrading Natural gas grid Biomethane Biogas Bio Synthetic Gas Dedicated grid Cleaning

3. 14 June 2011 1 2 3 Three current feed-in projects 1.De Marke, Hengelo (Gld) 2.Schoteroog, Haarlem 3.HVC, Middenmeer

4. 14 June 2011 De Marke, Hengelo (Gld) Specifications Parties involved:Wageningen UR Livestock Research, GreenChoice Source:Manure (cows) Upgrading:Gas washing Max. flow:14 m 3 /hr Location:Hengelo (Gld) Gas pressure:100 mbar

5. 14 June 2011 Schoteroog, Haarlem Specifications Parties involved:Essent, Gas Treatment Services, NV Afvalzorg, Hoogheemraadschap Rijnland en Gemeente Haarlem Source:Landfill and waste water treatment plant Upgrading :GPP® - cryogene technique Max. flow:300 m 3 /hr – 1000 m 3 /hr Location:Haarlem Gas pressure:4 bar

6. 14 June 2011 HVC, Middenmeer Specifications Parties involved:HVC, DHV Source:Compostable waste Upgrading:Gas washing Max. flow:1000 m 3 /hr Location:Middenmeer Gas pressure:8 bar

7. 14 June 2011 Pattern of gas demand Example for an 8 bar grid

8. 14 June 2011 Optimal location choice Location & opportunities –Feed in location: Highway or Dirt Road –Optimal solution; costs –Central Upgrade Unit –Injection 40 Bar? –Demand vs. Production

9. 14 June 2011 Feed-in station Monitoring: Chemical composition Pressure Volume flow Including: Filter Safety valves Data communication

10. 14 June 2011 Biogas in the natural gas grid

11. 14 June 2011 Biogas grids

12. To help create a better society in the regions in which we operate and to contribute to social and economic growth.