The German government has set ambitious climate protection targets to limit global warming. The goal is to achieve an energy efficient and almost climate-neutral building stock by 2050. This will require, among other actions, a reduction of the primary energy demand of buildings by up to 95% by the end of 2050. In order to achieve an almost climate-neutral building stock, measures for deep energy retrofit are required. In addition to an existing financial demand, there are additional barriers to the expansion of activities to improve the energy performance and to reduce greenhouse gas (GHG) emissions of the existing building stock. One way to overcome these barriers are novel business models such as Energy Performance Contracting (EPC). The question arises as to whether and how the reduction of GHG emissions can be taken into account in the savings guarantees as they are typical for EPCs. This and other questions are addressed in the paper using conjoint analysis. Among other results, it is pointed out that specific approaches are required for different target groups such as the public sector and private homeowners. Finally, recommendations for further action are given. The presented partial results are drawn from the research work “Analysis of business models with regard to their potential for GHG reduction and energy efficiency of buildings”.

德国政府制定了雄心勃勃的气候保护目标，以限制全球变暖。目标是到 2050 年实现节能且几乎不影响气候的建筑存量。除其他行动外，这将需要到 2050 年底将建筑物的一次能源需求减少多达 95%。为了实现几乎是气候中性的建筑库存，需要采取深度能源改造措施。除了现有的财务需求外，扩大活动以提高能源性能和减少现有建筑存量的温室气体 (GHG) 排放还存在其他障碍。克服这些障碍的一种方法是新的商业模式，例如能源绩效合同 (EPC)。问题在于是否以及如何在节能保证中考虑温室气体排放的减少，因为它们是 EPC 的典型特征。本文使用联合分析解决了这个问题和其他问题。除其他结果外，还指出需要针对不同目标群体（例如公共部门和私人房主）采取具体的方法。最后，提出了进一步行动的建议。所呈现的部分结果来自研究工作“商业模式在温室气体减排和建筑能源效率方面的潜力分析”。有人指出，公共部门和私人房主等不同的目标群体需要采取具体的方法。最后，提出了进一步行动的建议。所呈现的部分结果来自研究工作“商业模式在温室气体减排和建筑能源效率方面的潜力分析”。有人指出，公共部门和私人房主等不同的目标群体需要采取具体的方法。最后，提出了进一步行动的建议。所呈现的部分结果来自研究工作“商业模式在温室气体减排和建筑能源效率方面的潜力分析”。