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首页> 外文会议>eceee summer study on energy efficiency >Almost best friends: sufficiency and efficiency. Can sufficiency maximise efficiency gains in buildings?
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Almost best friends: sufficiency and efficiency. Can sufficiency maximise efficiency gains in buildings?

机译：几乎最好的朋友：充足和效率。充足可以最大限度地提高建筑物的效率吗？

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The efficiency strategy to exploit the potential for energy savings in buildings still is applied rather slowly in most countries. In addition, there are indications that energy savings are partly compensated particularly by wealth but also rebound effects, the ‘empty nest’ (persistence of elderly people and couples in family homes), and cohort effects (e.g. vintages of people or buildings). In Germany, as in other European countries, the existing trend in housing is a continuously growing floor space per capita. Over the last decades it expanded from about 20 m2 in 1960 to currently 45 m2 per person. Forecasts expect a further increase to more than 50 m2 per person. Obviously, more floor space needs more energy for space heating and cooling, ventilation, and lighting, but it also allows the household to operate more and or bigger appliances, all of which increase energy consumption. On the other hand, housing projects emerge offering relatively small private living spaces in combination with various shared spaces to use. Many of them are based on private initiatives. But what is the motivation behind it? And is there a higher need for new living concepts in the future? The proposed paper presents main drivers of increasing floor space per capita in Germany and discusses the question if more space is necessary for higher comfort. It presents different examples of housing concepts that strive to achieve good living with less space and suggests a ‘building typology of sufficiency’. Finally, the paper discusses qualitatively to which extent these housing concepts can lead to less energy use and emissions. In this way sufficiency could be best friend with efficiency and tackle wealth, rebound, and other effects that counter-act efficiency progress. But therefore, as the paper concludes, politics and policies should recognise sufficiency as a field of action instead of referring to individual decisions and lifestyles.
机译：利用建筑物节能潜力的效率策略仍然在大多数国家仍然相当缓慢地应用。此外，有迹象表明节能尤其由财富部分弥补，但也是反弹效应，“空巢”（年长人民和家庭家庭夫妇的持久性）和队列效应（例如人或建筑物的年份）。在德国，与其他欧洲国家一样，住房现有趋势是人均占地面积不断增长的楼层。在过去的几十年中，它将在1960年的大约20平方米扩展到目前每人45平方米。预测预计每人进一步增加到50平方米。显然，更多的楼层空间需要更多的空间供暖和冷却，通风和照明能量，但它也允许家庭运行更多或更大的电器，所有这些都会增加能量消耗。另一方面，住房项目出现了与各种共用空间相结合的私人生活区提供了相对小的私人生活空间。其中许多是基于私营计划。但它背后的动机是什么？还有未来新生活概念是否有更高的需求？拟议论文提出了德国人均楼层空间增加的主要司机，如果需要更多的空间对于更高的舒适度，请讨论这个问题。它呈现出努力实现良好生活的住房概念的不同示例，较少的空间，并建议“充足的建筑物类型”。最后，本文在定性上讨论这些住房概念可能导致能源使用和排放较少。以这种方式，充足可能是最好的朋友，效率，解决财富，反弹等逆行效率进展的影响。但因此，作为论文的结论，政治和政策应承认充足作为行动领域，而不是提及个人决定和生活方式。

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