Power to Gas: Microbial Methanation, a Flexible and Highly Efficient Method

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1 Power to Gas: Microbial Methanation, a Flexible and Highly Efficient Method MicrobEnergy GmbH Dr. Monika Reuter Unternehmenspräsentation Vorlage 1 04/2012 Viessmann Werke

2 Topics 1. Viessmann Group - MicrobEnergy 2. Biological methanation 3. Potentials 4. Development work and results 5. Economics Unternehmenspräsentation Vorlage 2 04/2012 Viessmann Werke

3 Viessmann Group 1917 Start up employes 1,86 Billion Sales in Production companies in 11 countries 74 Countries with sales branches and partners Branches worldwide Percentage international sales Sales branches Sales Partners AFK Frankenberg Stammtisch der Wirtschaft Viessmann Werke Seite 3

4 AFK Frankenberg Stammtisch der Wirtschaft Seite Viessmann Werke Comprehensive product range Flächenvertrieb Anlagentechnik 1,5 kw kw* *Öl- und Gasfeuerungen von HKB bis kw

5 MicrobEnergy GmbH Founded: 2012 Spin-off company of Schmack Biogas GmbH as subsidiary company of the Viessmann Group Headquarters: Services: Schwandorf (Bayern / Opf.) Research and Development, analytics, experiments Workforce: 16 MicrobEnergy Experience, expertise and comprehensive knowledge in biogas technology and microbiology. Develops, produces and sells microbiological products and process technology. MicrobEnergy GmbH page 5 23/04/2013 Offers service in Research and Development

6 Topics 1. Viessmann Group - MicrobEnergy 2. Biological methanation 3. Potentials 4. Development work and results 5. Economics MicrobEnergy

7 Biological methanisation Biogas-Process 50% CH 4 50% CO 2 Biomasse (Polymere) Hydrolyse Monomere (gelöste org. Verbind.) Acidogenese organische Säuren Alkohole CO 2 + H 2 Acetogenese Essigsäure Methanogenese Biogas: 50% CH % CO 2 Unternehmenspräsentation Vorlage 7 04/2012 Viessmann Werke

8 Biological methanisation Biogas-Process with additional Hydrogen injection 50% CH Elektrolyse 4 50% CO 2 H2 Biomasse (Polymere) Hydrolyse Monomere (gelöste org. Verbind.) Acidogenese organische Säuren Alkohole CO 2 + 4H 2 Acetogenese Essigsäure Methanogenese Biogas: 95% CH 4 (SNG) Unternehmenspräsentation Vorlage 8 04/2012 Viessmann Werke

9 Biologische Methanisierung Methanogenesis - metabolism simple process Methanogenese controlable: - switch on under presence of H 2 /CO 2 - switch off under absence of H 2 /CO 2 = resting state efficency about 75% to 80% CO 2 + 4H 2 CH 4 + 2H 2 O Quelle: Brock, Mikrobiologie Unternehmenspräsentation Vorlage 9 04/2012 Viessmann Werke

10 Possibilities to optimize the biogas process: Co-fire into the biogas plant biogas Surplus electricity can be purified to quality of the natural gas 95% CH 4 = energetic reservoir or NorddeutscherRundfunk discontinuous H 2 50% CH 4 50% CO 2 When there is a demand of electricity it can be supplied via the CHP discontinuous electrolysis biogas When there is surplus electricity the 95% CH 4 gas reservoir is filled with H 2 : Gas can be can be purified to quality of the natural gas permanently MicrobEnergy continuous H 2 discontinuous electrolysis MicrobEnergy GmbH page 10 23/04/2013 Vattenfall

11 Possibilities to optimize the biogas process: Methanation biogas 50% CH 4 50% CO 2 95% CH 4 continuous H 2 discontinuous electrolysis When there is surplus electricity the gas reservoir is filled with H 2 : Gas can be can be purified to quality of the natural gas permanently via the methanation unit MicrobEnergy MicrobEnergy GmbH page

12 Two solutions for methanation: Technical catalytically or biologically Technical solution: Sabatier-Process (1902) Biological solution: Methanogenesis Pro: surplus electriciy Pro: Good to control Good to scale Contra: Seldom raw materials Sensitive catalyser Gases have to be from a highly purity grade High temperature Low flexibility High pressure temperature (>250 C) adequate catalyser electrolysis 2 H 2 O 2 H 2 +O 2 methanation 4 H 2 +CO 2 CH 4 +H 2 O temperature (40-70 C), hydrous environment Low temperature Low pressure (when used in biogas plants) Gases do not have to be from a highly purity grade Flexible Small scale digester usage peripheral possible Contra: Biological system MicrobEnergy Probable use: Centrally at large-scale industrial processes i.e. power plants, fabrication of steel or cement Probable use: Peripherally at breweries, distilleries and biogas plants MicrobEnergy GmbH page 12 23/04/2013

13 Topics 1. Viessmann Group - MicrobEnergy 2. Biological methanation 3. Potentials 4. Development work and results 5. Economics Unternehmenspräsentation Vorlage 13 04/2012 Viessmann Werke

14 Unternehmenspräsentation Vorlage 14 04/2012 Viessmann Werke Biogas Plants as a flexible storage 50% CH 4 50% CO 2 Stromerzeugung BHKW

15 Unternehmenspräsentation Vorlage 15 04/2012 Viessmann Werke Biogas Plants as a flexible storage 100% CH 4 Methanisierung Elektrolyseur H 2

16 Unternehmenspräsentation Vorlage 16 04/2012 Viessmann Werke Biogas Plants as a flexible storage Stromdefizit Methanisierung 100% CH 4 50% CH 4 50% CO 2 Stromerzeugung Elektrolyseur H 2 BHKW

17 Storage capacity in biogas plants Biogas plants in Germany 2011 Plants in Germany: ca Installed power: ca. 3 GW Full-Operating hours per year ca h Produced electrical energy: Storage capacity today (4h) Change to 8/16 mode Upgrad with ptg: Installed electrolyzer power: ca. 22 TWh ca. 12 GWh ca. 9 GW ca. 48 GWh ca. 15 GW ca. 75 GWh ca. 25 GW Unternehmenspräsentation Vorlage 17 04/2012 Viessmann Werke

18 Topics 1. Viessmann Group - MicrobEnergy 2. Biological methanation 3. Potentials 4. Development work and results 5. Economics Unternehmenspräsentation Vorlage 18 04/2012 Viessmann Werke

19 Unternehmenspräsentation Vorlage 19 04/2012 Viessmann Werke Research results in lab-scale 10L-Maßstab

20 Unternehmenspräsentation Vorlage 20 04/2012 Viessmann Werke First pilot plant 5-40L-Maßstab 100m³-Maßstab

21 Topics 1. Viessmann Group - MicrobEnergy 2. Biological methanation 3. Potentials 4. Development work and results 5. Economics Unternehmenspräsentation Vorlage 21 04/2012 Viessmann Werke

22 Energy system today: fosil power plants in the center 14% 3% Viessmann Werke 14% 62% 7%

23 The aim to produce 80% of electricity from renewables is only reachable, when wind and solar is in the center Viessmann Werke

24 Today: Energy market was dominated by big central power plants planable Contracts (hours) Daily demand 50 GW Peak load Base load Long terme base load Viessmann Werke Strategiemeeting 2013 Folie

25 Strategiemeeting 2013 Folie Viessmann Werke Future: production based on weather conditions Only temporarily and local planable 50 GW PV power

26 Strategiemeeting 2013 Folie Viessmann Werke Future: production based on weather conditions Storage shifts production towards demand PV power 50 GW Wind power

27 Regulating energy market Price for power 2012 Analysis of regelleistung.net Time: to avarage of the weekly price for power: 1673 /MW*week on a yearly base: /MW*a Viessmann Werke

28 Pilotprojekt 3 Allendorf 330 m³/h 53% CH4 47% CO2 Biomethane-Plant 175Nm³/h Viessmann Werke

29 Pilotprojekt 3 Allendorf 330 m³/h 60% CH4 38% CO2 H m³ H2/h Biomethane Plant 200 Nm³/h Viessmann Werke

30 PtG Pilotprojekt 2014 economics assumption: Price for power: /MW*a cost for energy: 1 ct/kwh Full operating hours per year h/a Sales price for methane: 0,08ct/kWh Service cost for the electrolyzer: /a Depreciation time: 20 a subsidy: 30 % of invest Invest after subsidy: T Interest rate: 3 % H2-conversion rate: 95 % Viessmann Werke

31 PtG Pilotprojekt 2014 economics Year 2014 Sales for methane 50 T Sales for regulative energy - power 90 T Sales total 140T Service cost for electrolyzer -20 T Cost for electricity -20 T EBITDA 100 T Depreciation 50 T EBIT 50 T Viessmann Werke

32 Unternehmenspräsentation Vorlage 32 04/2012 Viessmann Werke