Thrän Daniela, Kaltschmitt Martin
Institute for Energy and Environment, Leipzig, Germany.
Biotechnol J. 2007 Dec;2(12):1514-24. doi: 10.1002/biot.200700162.
The intensified use of biomass as an energy source is an often-repeated goal of the German and European climate protection policy. Therefore, framework conditions have been created in recent years, which allow for a wider use of biomass within the energy system especially for a provision of electricity and fuels. Due to this policy, Germany, for example, has emerged as the leading producer of biogas from energy crops and fatty methyl ester (FAME) in Europe. However, due to the high energy price level, the use of biomass for heating purposes and as a renewable raw material have increased at the same time. To supply the obviously increased demand for biomass or biobased energy carriers cost efficiently, nationwide and to some extend even global markets are under development at present. As the demand for biomass is expected to continue to increase strongly, it is feared that an increasing competition with the use for food and fodder as well as a raw material might occur in the years to come. Against this background we have analyzed the competitions that can be expected, and the influence that they may have on the further expansion of the use of biomass for energy production. Experiences from Germany are provided exemplarily. Based on this, it is concluded that measures need to be taken to support an efficient and sustainable use of bioenergy in the future.
强化生物质作为能源的利用是德国和欧洲气候保护政策经常提及的目标。因此,近年来已创造了框架条件,使得生物质在能源系统中能得到更广泛的利用,特别是用于发电和生产燃料。由于这项政策,例如德国已成为欧洲能源作物沼气和脂肪酸甲酯(FAME)的主要生产国。然而,由于能源价格处于高位,生物质用于供热目的以及作为可再生原材料的用途同时有所增加。为了经济高效地满足对生物质或生物基能源载体明显增加的需求,目前全国乃至在一定程度上全球市场都在发展之中。由于预计对生物质的需求将继续强劲增长,人们担心未来几年可能会在与用于食品、饲料以及原材料的用途之间出现日益激烈的竞争。在此背景下,我们分析了可能出现的竞争情况以及它们对生物质用于能源生产的进一步扩大可能产生的影响。文中以德国的经验为例进行了阐述。据此得出结论,未来需要采取措施来支持生物能源的高效和可持续利用。