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The impact of energy performance certificates: A survey of German home owners

机译：能源绩效证书的影响：对德国房屋所有者的调查

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摘要

The building sector accounts for about 40% of the final energy consumption in Germany. At the same time, the sector is regarded as one of the most cost-effective options for saving CO_2 emissions. To target this potential, the European Union introduced energy performance certificates (EPC). EPCs should provide clear information about the energy performance of buildings to building purchasers, owners and tenants. This study analyses, in how far EPCs have helped purchasers of owner-occupied dwellings in Germany to incorporate energy efficiency in their purchasing decisions. The results suggest that the effectiveness of EPCs is limited. Main reasons are first, that the certificates are not helpful for understanding the financial implications of energy efficiency. Second, EPCs are not viewed for most buildings due to their legal status. Third, energy efficiency is only a minor purchasing criterion for dwelling purchases. The results of the study however also point to the potential of EPCs, as these barriers can be removed. From 2013 onwards the use of the EPC will be increased due to the new EU Energy Performance of Buildings Directive (EPBD). Changes to the design of the EPC could further increase the importance of energy performance certificates and of energy efficiency.
机译：建筑部门约占德国最终能源消耗的40％。同时，该部门被认为是节省CO_2排放的最具成本效益的选择之一。为了发挥这一潜力，欧盟引入了能源绩效证书（EPC）。 EPC应向购房者，业主和租户提供有关建筑物能源性能的清晰信息。这项研究分析了EPC在多大程度上帮助德国购房者在其购买决策中纳入了能效。结果表明，EPC的有效性是有限的。首先，主要原因是证书对理解能源效率的财务影响没有帮助。其次，由于大多数建筑物的法律地位，因此未对EPC进行查看。第三，能源效率只是住宅购买的次要购买标准。但是，研究结果也指出了EPC的潜力，因为可以消除这些障碍。从2013年起，由于新的欧盟建筑节能指令（EPBD），将增加EPC的使用。 EPC设计的更改可能会进一步提高能源绩效证书和能源效率的重要性。

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