Train the Trainer seminar Part 2 (Graz) evolution of a biogas plant (case study 1) from the first idea until today

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1 Train the Trainer seminar Part 2 (Graz) evolution of a biogas plant (case study 1) from the first idea until today April 2008, Christian Sakulin, Karl Puchas Lokale Energie Agentur Oststeiermark 1

2 Evolution of Biogas St.Stefan i.r. Framework conditions: No feed-in tariff defined by law Public subsidy for investments (up to 50%) Partners: 5 farmers Location: village Dollrath (municipality of St.Stefan i.r.) first idea 1998 Lokale Energie Agentur Oststeiermark 2

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4 Lokale Energie Agentur Oststeiermark 4

5 Evolution of Biogas St.Stefan i.r. Quick Check 11/1999: First contact to planning company 12/1999: First contact to LEA first idea 1998 Visits of several biogas plants (about 30) 1999 Lokale Energie Agentur Oststeiermark 5

6 Evolution of Biogas St.Stefan i.r. Framework conditions: first feed in tariff by law ( cent/kwh), Municipality of St.Stefan decided to be partner Partners: 20 farmers, municipality 3/2000: proposal for a feasibility study about the use of thermal power (LEV) 5/2000: First idea of using sewage sludge ; transport of the sludge from St. Stefan to Dollrath by trucks? 08/2000: 1 st proposal for a R&D pilot project (Government of Styria) first idea 1998 Visits of several (about 30) biogas plants project development Lokale Energie Agentur Oststeiermark 6

7 Evolution of Biogas St.Stefan i.r. feedstock: ca. 12,000 tons /a (liq. manure, fat, wastes), 8,700 tons from 5 farmers (pigs, chicken) Investment costs: 1 Mio Hygienisation/Pasteurisation unit (TNP/ ) first idea 1998 Visits of several (about 30) biogas plants project development Start planning & design 2000 Lokale Energie Agentur Oststeiermark 7

8 Evolution of Biogas St.Stefan i.r. project development /2001: proposal for public subsidy (Government of Austria) 3/2001: finalisation of the feasibility study about the use of thermal power 4/2001 9/2001: Feasibility study about the use of different substrates (sewage sludge, agricultural wastes, biowastes) for biogas plants in rural areas 10/2001: 2nd Proposal for a R&D pilot project (Government of Styria) Lokale Energie Agentur Oststeiermark 8

9 Evolution of Biogas St.Stefan i.r. special research digester for sewage sludge (190m³), options: - co-digesting of sewage sludge - separate processing stream for sewage sludge project development 2001 planning & design 2001 Lokale Energie Agentur Oststeiermark 9

10 research digester (sewage sludge, 190 m³) Lokale Energie Agentur Oststeiermark 10

11 Evolution of Biogas St.Stefan i.r. Framework conditions: Partners: 10 farmers, 1 company, 1 municipality project development 2001 planning & design 2001 change of the location 11/2001 Lokale Energie Agentur Oststeiermark 11

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13 Evolution of Biogas St.Stefan i.r. project development planning & design change of the location foundation of the biogas company /2001 4/2002 Lokale Energie Agentur Oststeiermark 13

14 Evolution of Biogas St.Stefan i.r. authorization: start construction permit 8/2002: granting of public subsidy (investment costs) Government of Austria 09/2002: completion of the waste management concept 11/2002: 3 rd proposal for a R&D pilot project (Government of Styria) project development planning & design change of the location foundation of the biogas company Start: building up /2001 4/2002 7/2002 Lokale Energie Agentur Oststeiermark 14

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19 paddle agitator Lokale Energie Agentur Oststeiermark 19

20 angular agitating vane Lokale Energie Agentur Oststeiermark 20

21 strings to hold the bottom of the gasholder Lokale Energie Agentur Oststeiermark 21

22 fitting of the gasholder (1 st layer) Lokale Energie Agentur Oststeiermark 22

23 fitting of the gasholder (2 nd layer) Lokale Energie Agentur Oststeiermark 23

24 Evolution of Biogas St.Stefan i.r. authorization: construction permit approved Framework conditions: 1 st Austrian law on green power defines feed-in tariffs (10,875cent / kwh), no public subsidy for investment costs construction permit approved 6/2003 Lokale Energie Agentur Oststeiermark 24

25 Evolution of Biogas St.Stefan i.r. Granting of the subsidy of the R&D pilot project by the Government of Styria digestion of sewage sludge was not realised! construction permit approved 6/2003 start up of the plant 7/2003 Lokale Energie Agentur Oststeiermark 25

26 Evolution of Biogas St.Stefan i.r. construction permit approved 6/2003 start up of the plant 7/2003 opening event 10/2003 Lokale Energie Agentur Oststeiermark 26

27 Evolution of Biogas St.Stefan i.r. construction permit approved start up of the plant opening event start research activities 6/2003 7/ / Lokale Energie Agentur Oststeiermark 27

28 Evolution of Biogas St.Stefan i.r. construction permit approved 6/2003 start up of the plants operation opening event start research activities optimisations of the AD 7/ / Lokale Energie Agentur Oststeiermark 28

29 Evolution of Biogas St.Stefan i.r. problems with slaughterhouse wastes (bad odour, foam) district heating fruit drying 2005 Lokale Energie Agentur Oststeiermark 29

30 Evolution of Biogas St.Stefan i.r. 1,100 kw liquid gas burner (110 C, district heating) District heating fruit drying installation of liquid gas burner Lokale Energie Agentur Oststeiermark 30

31 Evolution of Biogas St.Stefan i.r. Feasibility study: combination of the older biomass (wood chips) district heating system with the biogas heating system CHP: 2 x 500 kw (750 kw el production) Framework conditions: new feed-in tariff: 9,375/ kwh ( > 500 kwel) Investment cost total: 2,600,000 District heating fruit drying Installation liquid gas unit nd CHP unit (500 kw) 2007 Lokale Energie Agentur Oststeiermark 31

32 Evolution of Biogas St.Stefan i.r. extension of the biogas district heating (combination and cooperation with the local biomass district heating system) It is planned to up grade the plant (additional digester) District heating Installation liquid gas unit fruit drying nd CHP unit (500 kw) 2007 district heating (upgrade) 2008/2009 Lokale Energie Agentur Oststeiermark 32

33 more impressions of the plant Lokale Energie Agentur Oststeiermark 33

34 automatic feeder for silage Lokale Energie Agentur Oststeiermark 34

35 Delivery / fitting of the CHP (500 kw el ) Lokale Energie Agentur Oststeiermark 35

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40 Thank you for your attention Lokale Energie Agentur Oststeiermark 40