Views
5 years ago

BIOENERGY FOR EUROPE: WHICH ONES FIT BEST?

BIOENERGY FOR EUROPE: WHICH ONES FIT BEST?

164 7 Annex 7.2.7 ETBE

164 7 Annex 7.2.7 ETBE from sugar beet versus fossil MTBE for transportation: relative impact differences between biofuels and fossil fuels 200% 100% 0% -100% Use of fossil fuels Greenhouse effect How to interpret the diagram Ozone Depletion by N2O Acidification Eutrophication Summer smog Human toxicity France Germany Netherlands Europe Environmental advantages and disadvantages of ETBE compared to MTBE for each country involved as well as for Europe are shown by relative differences between the biofuels and the fossil fuel: (biofuel – fossil fuel) / fossil fuel. The zero line indicates the level for fossil fuels. Therefore negative values indicate advantages for ETBE and positive ones represent advantages for MTBE. For example, assuming the production and combustion of fossil fuel causes an emission of 1 kg of N2O (Ozone depletion), then a value of -100 % means no net N2O emissions in the case of the biofuel, 0 % means 1 kg N2O (i.e. the same as the fossil fuel), 100 % means 2 kg N2O and so on. Remarks and conclusions For the categories use of fossil fuels and greenhouse effect all country results are very close. Especially regarding eutrophication there are much greater differences. For eutrophication Germany stands out with an exceptionally high impact by using the defaults from the data collection guideline for nitrate emissions to water; for the Netherlands a more complex model was used which gave higher nitrate emissions from fallow than from the crop. Most of the other differences are rather small and to be regarded as less significant.

7.2 Comparisons between the countries for each biofuel 165 7.2.8 Traditional firewood versus light oil for residential heating: relative impact differences related to fossil fuels 200% 100% 0% -100% Use of fossil fuels Greenhouse effect How to interpret the diagram Ozone Depletion by N2O Acidification Eutrophication Summer smog Human toxicity Austria Italy Switzerland Europe Environmental advantages and disadvantages of firewood compared to light oil for each country involved as well as for Europe are shown by relative differences between the biofuels and the fossil fuel: (biofuel – fossil fuel) / fossil fuel. The zero line indicates the level for fossil fuels. Therefore negative values indicate advantages for firewood and positive ones represent advantages for light oil. For example, assuming the production and combustion of fossil fuel causes an emission of 1 kg of N2O (Ozone depletion), then a value of -100 % means no net N2O emissions in the case of the biofuel, 0 % means 1 kg N2O (i.e. the same as the fossil fuel), 100 % means 2 kg N2O and so on. Remarks and conclusions Regarding the parameters use of fossil fuels, greenhouse effect and ozone depletion, the results are similar for all three countries. Regarding eutrophication, Switzerland shows a very high value, which is caused by an very high NOX emissions of the combustion. The differences for acidification and summer smog among the countries and among the biofuel and fossil fuels are rather small and to be regarded as less significant.

Bioenergy Update 10-02 - General*Bioenergy
Maximising the environmental benefits of Europe's bioenergy potential
Desktop Management Tools — Which One Is the Best?
Choose The One That Best Fits Your Lifestyle! - Java Fundraiser