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Biogas potential in Upper Silesia region in Poland. Examples of utilization. Michał Skrzypczak, MSc. Eng. VERT Energy Consulting Conference ENEF 2006 –

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Presentation on theme: "Biogas potential in Upper Silesia region in Poland. Examples of utilization. Michał Skrzypczak, MSc. Eng. VERT Energy Consulting Conference ENEF 2006 –"— Presentation transcript:

1 Biogas potential in Upper Silesia region in Poland. Examples of utilization. Michał Skrzypczak, MSc. Eng. VERT Energy Consulting Conference ENEF 2006 – Banska Bystrica (SK) –

2 The contents of the paper Introduction Biogas utilization in Poland Biogas potential in Upper Silesia region Examples of utilization: Żywiec, Ostrowiec Świętokrzyski

3 Introduction Biogas: flammable gas, which is produced as a result of methane fermentation, thanks to activity of methane bacteria. Organic compounds are changed into biogas and inorganic compounds in an oxygen-free environment.

4 Introduction Conditions that favor methane fermentation: temp. ca. 30 – 35 O C (mesophile f.) neutral or slightly alkaline reaction (pH 7.0 – 7.5) period of detaining the substrate 12 – 36 days (mesophile f.) lack of light and oxygen

5 Introduction Biogas is a mixture of the following compounds: CH 4 : 40 – 85% (typical 55 – 65 %) CO 2 O 2, H 2 S, N 2, other: < 5 % Typical calorific value: 5.5 – 6.5 kWh/m 3 (19.8 – 23.3 MJ/m 3 )

6 Introduction Typical biogas utilization: as fuel for boilers (heat production) as fuel for combustion engines (electric energy production, if heat recovery is performed also heat production) after CO 2 separation, gas can be pressed into a gas grid (used in the same way as natural gas)

7 Introduction Three main ways of biogas production: at sewage treatment plants: fermentation of sludge at waste dumps: a natural process which accompanies waste storage at agricultural farms: fermentation of animal and vegetable waste

8 Biogas utilization in Poland Biogas from sewage treatment plants: > 22 objects > 9.2 MW el > 11.8 MW th

9 Biogas utilization in Poland Biogas from waste dumps: > 32 objects > 16.0 MW el > 7.1 MW th

10 Biogas utilization in Poland Biogas from agricultural farms (and from food production industry): < 10 objects < 5.0 MW el

11 Biogas potential in Upper Silesia 2004 – 2005: determining the renewable energy resources at non- industrial areas of Upper Silesia region Silesian voivodship consist of 170 communes, 22 communes (the biggest cities) have been excluded from the project

12 Biogas potential in Upper Silesia Orderer was: The Board of Silesian Voivodship The project has been realized by: Polish Academy of Sciences, Mineral and Energy Economy Research Institute, Kraków The project has been financed by: The Voivodship Fund for Environmental Protection and Water Management in Katowice

13 Biogas potential in Upper Silesia Theoretical and technical potential of biogas: Theoretical potential has been assumed as maximum possible for gaining amount of power and energy from a certain source and certain area with total collecting the substance which is the source of biogas and with assuming lossless conversion of chemical energy into other effective forms of energy.

14 Biogas potential in Upper Silesia Theoretical and technical potential of biogas: Technical potential has been assumed as maximum possible for gaining amount of power and energy from a certain source and certain area with such collecting the substance which is the source of biogas which is possible in reality and with assuming efficiency of conversion of chemical energy into other effective forms of energy according to available devices.

15 Biogas potential in Upper Silesia Theoretical potential of biogas from sewage treatment plants: DataResults Population: 1,960,402 Amount of sewage: 73,907,155 m 3 /yr. Amount of biogas: 14,781,429 m 3 /yr. Total power: 10,126 kW Total energy: 319,279 GJ

16 Biogas potential in Upper Silesia Technical potential of biogas from sewage treatment plants: DataResults Only 10 objects: > 5,000 m 3 /day Amount of sewage: 36,938,000 m 3 /yr. el = % util. th = % util. Amount of biogas: 2,955,040 m 3 /yr. Total power: 1,821 kW El. energy: 6,206 MWh/yr. Heat: 10,531 GJ/yr.

17 Biogas potential in Upper Silesia Theoretical potential of biogas from waste dumps: DataResults Population: 1,960,402 Amount of waste: 594,002 Mg/yr. Amount of biogas: 145,530,443 m 3 /yr. Total power: 83,063 kW Total energy: 2,619,548 GJ

18 Biogas potential in Upper Silesia Technical potential of biogas from waste dumps: DataResults Only 8 objects: > 50 Mg/day Amount of waste: 669,775 Mg/yr. el = % util. th = % util. Amount of biogas: 11,721,063 m 3 /yr. Total power: 6,022 kW El. energy: 20,511 MWh/yr. Heat: 34,812 GJ/yr.

19 Biogas potential in Upper Silesia Theoretical potential of biogas from animal farms: DataResults Cattle population: 142,644 Pigs population: 393,482 Poultry population: 12,141,284 Amount of biogas: 143,962,516 m 3 /yr. Total power: 106,822 kW Total energy: 3,368,721 GJ

20 Biogas potential in Upper Silesia Technical potential of biogas from animal farms: DataResults Only big objects: > 100 cows (8.6 %) > 500 pigs (13.5 %) > 50,000 hens (68.8 %) el = % util. th = % util. Amount of biogas: 33,714,807 m 3 /yr. Total power: 22,516 kW El. energy: 76,701 MWh/yr. Heat: 130,174 GJ/yr.

21 Examples of utilization ŻywiecOstrowiec Św. Population: 32,199 Area: km 2 Population: 74,198 Area: km 2

22 Examples of utilization

23 Sewage treatment plant in Żywiec:

24 Examples of utilization Sewage treatment plant in Ostrowiec Św.:

25 Examples of utilization ŻywiecOstrowiec Św. CHP unit: Viessmann Vitobloc FG 114 P el = 114 kW, = 34.0 % P th = 186 kW, = 55.5 % Date of starting: Cost of investment: 620,000 PLN + VAT (160,000 ) CHP unit: Viessmann Vitobloc FG 180 P el = 180 kW, = 35.0 % P th = 270 kW, = 52.4 % Date of starting: Cost of investment: 1,200,000 PLN + VAT (310,000 )

26 Examples of utilization Amount of sewage ŻywiecOstrowiec Św. 2003: 4,856,423 m : 5,118,321 m : 5,178,258 m 3 average: 13,840 m 3 /day 2005: 4,872,704 m 3 average: 13,350 m 3 /day

27 Examples of utilization Amount of biogas ŻywiecOstrowiec Św. 2003: 428,814 m : 516,539 m : 479,556 m 3 average: 54.2 m 3 /h Average calorific value: 23.5 MJ/m : 744,388 m 3 average: 85.0 m 3 /h Average calorific value: 22.7 MJ/m 3

28 Examples of utilization CHP worktime ŻywiecOstrowiec Św. 2003: 7,500 h (85.6 %) 2004: 8,285 h (94.6 %) 2005: 7,930 h (90.5 %) average: 7,905 h (90.2 %) 2005: no data available

29 Examples of utilization CHP load ŻywiecOstrowiec Św. 2003: 84.7 % 2004: 72.3 % 2005: 83.0 % approx % 2005: 71.8 % (together with CHP worktime)

30 Examples of utilization El. energy produced by CHP / Total el. energy used ŻywiecOstrowiec Św. 2003: 24.6 % 2004: 23.6 % 2005: 26.8 % average: 25.0 % 2005: 44.7 %

31 Examples of utilization Heat produced by CHP / Total heat used ŻywiecOstrowiec Św. 2003: 73.5 % 2004: 80.2 % 2005: 72.7 % average: 75.5 % 2005: no data available

32 Examples of utilization Income from selling el. energy from RES in Poland: 0.12 PLN/kWh (selling energy to local distributor, price fixed once a year) average 0.30 PLN/kWh (0.077 /kWh, 2.82 SKK/kWh) 0.14 – 0.21 PLN/kWh (selling certificate of origin energy from RES at stock or free market, maximum possible price is 0.24 PLN/kWh)

33 Thank you for your attention! VERT Energy Consulting Bielsko-Biała, Poland web-site:www.skrzypczak.pl The company deals with problems of: reducing energy consumption reducing costs of energy purchase and production using Renewable Energy Sources


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