Adding gas from biomass to the gas grid - SGC

Source10 9 m 3 per yearPJ/year 1)Manure 3.40 73Waste from agro-industrial sector 2.00 43Biowaste, domestic 0.85 18Biowaste, industrial 0.42 9Energy crops (300,000 ha, 36 t/ha) 1.60 34Total 8.27 1781): Assuming an average lower heating value of 21.5 MJ/m 3 (60% CH 4 , 40% CO 2 ).Table 43: Potential biogas production from manure, waste and energy crops in Germany [lit.56]The German Biogas Association estimates that a biogas potential of 10 GWh in 2020 is realistic[lit.57].7.1.6 The NetherlandsIn the Netherlands most economically viable sources are used. Established application areas are:• Cleaning of industrial waste stream containing organic material• Sewage treatment plants• Landfills• Refuse burning facilities• Co-firing at power production• Production of syngas for power productionIn 1998, nearly 38 PJ of energy was produced by anaerobic digestion in 225 installations. Also inthis year 44 landfill locations produced 1,3 PJ of energy.There are about fifty projects in study, often enlarging the current scope on biomass utilisation forenergy production. Since most easy to use biomass sources are depleted, new technologies are tobe developed to utilise biomass and waste of a lower quality.NOVEM maintains since October 1999 an internet site (www.biomaster.nl) for indicating theavailable amounts and prices of biomass and organic waste as far as available in the Netherlands.This site gives also entrance to an experimental biomass exchange bourse.Table 44 shows the costs of biomass by 2000. The current trade value of natural gas and thepotential value of sustainable gas are also inserted in this table. Biomass that is more expensivethan natural gas cannot compete with natural gas. The higher price paid for sustainable gas resultsonly in a slight increase in the availability of biomass for an economical utilisation.page: 85