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首页> 外文期刊>E3S Web of Conferences >Energy Efficiency and Cost Performance of Direct-Current Power Supply Systems in Residential Buildings by 2030s and 2050s
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Energy Efficiency and Cost Performance of Direct-Current Power Supply Systems in Residential Buildings by 2030s and 2050s

机译：到2030年代和2050年代住宅建筑中直流电源系统的能效和成本绩效

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In an effort to clarify the potential use and effectiveness of direct current (DC) power supply systems and further promote their usage, this study investigates the energy saving and cost performance characteristics of such a system for a detached house equipped with roof-mounted solar photovoltaic (PV) panels. Our evaluation considered different DC-powered appliances under different energy price conditions and made projections based on present, 2030s, and 2050s scenarios. Initial cost reductions were also considered based on assumed near-future technological developments. Our case study results show that the simple payback period is likely to be shortest in cases where DC power is only used for low-voltage appliances under present price conditions, when supplying DC power to cover interior space heating under the 2030s energy price scenario, and when covering all DC-powered appliances (including water heating) under the 2050s scenario. Taken together, these results indicate that it is desirable to set the introductory targets while projecting future energy price fluctuations and anticipating the cost reductions that will result from ongoing technological developments.
机译：为了阐明直流（DC）电源系统的潜在用途和有效性并进一步促进其使用，本研究调查了这种系统的节能和成本性能特征，该系统用于配备屋顶太阳能光伏的独立式住宅（PV）面板。我们的评估考虑了在不同能源价格条件下的不同直流供电设备，并根据当前，2030年代和2050年代的情景做出了预测。还基于假定的近期技术发展来考虑降低初始成本。我们的案例研究结果表明，在2030年代能源价格情景下，当在当前价格条件下仅将直流电用于低压电器时，为室内空间供暖提供直流电时，简单的投资回收期可能最短;并且涵盖2050年代情景下的所有直流供电设备（包括热水）。综上所述，这些结果表明，在预计未来的能源价格波动并预期由于正在进行的技术发展而导致的成本降低的同时，需要设定介绍性目标。

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