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BIOENERGY FOR EUROPE: WHICH ONES FIT BEST?

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4.4 Summary of country specific results 71<br />

4.4.3 France<br />

The bioenergy strategy in France is depending on the existing energy producers and the availability of<br />

raw materials from the forestry and agriculture sectors. Traditional fuelwood for domestic use is the<br />

most important source of bioenergy in France (about 8-10 Mtoe per year). A large-scale programme,<br />

managed by ADEME (Agence de l'environnement et de la maîtrise de l'énergie), is promoting a better<br />

use efficiency for this fuel wood and also a utilisation in industries and collectivities. More recently, at<br />

the beginning of the 1990's, liquid biofuels for transportation have been implemented at a large-scale<br />

level according to the Levy's mission (1991). This project is based upon two chains: a) RME – rape<br />

seed oil methyl ester – from rape seed oil blended with diesel (5 % in volume without labelling, up to<br />

30 % in urban captive fleets), today this chain represents roughly 300 000 tons of RME per year<br />

(~300 000 ha of rape seed grown on set-aside areas) and b) ETBE – ethyl tertiobutyl ether – (47 %<br />

ethanol and 53 % isobutylen) from ethanol produced from sugar beet or wheat blended with gasoline<br />

(15 % in volume), this chain represents today 100 000 tons of alcohol per year and extension based<br />

upon alcohol ex sugar beet is planned. These chains benefit from temporary tax exemption: 0.50 Euro<br />

per litre of alcohol and 0.35 Euro per litre of RME. These bioenergy chains, fuelwood and mainly liquid<br />

biofuels, are now mature and implemented on an industrial scale. Other bioenergy chains based on lignocellulosic<br />

raw materials for electricity and heat production are today in France at the experimental or<br />

demonstration level. Specific experiments exist at the agricultural level (Miscanthus, fibre sorghum,<br />

Arundo etc.) but agricultural dry residues such as cereal straw represent a high potential of lignocellulosic<br />

raw material for these chains.<br />

The life cycle comparisons that were investigated in France are:<br />

• Triticale versus coal<br />

• Miscanthus versus natural gas<br />

• Rape seed oil methyl ester (RME) versus fossil diesel fuel<br />

• Sunflower methyl ester (SME) versus fossil diesel fuel<br />

• ETBE from sugar beet versus MTBE<br />

• Wheat straw versus natural gas<br />

For more information on these comparisons in France, see chapter 7.1.3.<br />

In comparison with fossil energy, all the bioenergy chains represent a significant advantage in term of<br />

global impact: resources depletion such as primary energy, global warming potential. This advantage is<br />

higher with biomass as raw material for electricity and heat than with liquid biofuels. But liquid biofuels<br />

are today the single source of bioenergy for transportation. The advantage of bioenergy at the global<br />

scale is sometimes weighted by the local or regional impacts such as eutrophication or acidification. In<br />

terms of the environment, biomass utilisation may be positive but it's not automatic, especially due to<br />

potential negative impacts on a local scale. Moreover, the variability between different situations, especially<br />

at the farm scale level, may introduce a wide range of uncertainty in the local impacts. This<br />

comment illustrates the needs for the identification of the production areas where negative local impacts<br />

are minimal. Moreover, these different impacts represent a partial view of the environmental impacts<br />

such as landscape, which are directly related to the spatial distribution of the energy crops at the national<br />

scale and land use.

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