Green Building Performance Evaluation: Measured Results from LEED-New Construction Buildings
Green Building Performance Evaluation: Measured Results from LEED-New Construction Buildings
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绿色建筑绩效评估：LEED-新建建筑的测量结果
DOI：
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发表时间：
2008
期刊：
影响因子：
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通讯作者：
M. Frankel
中科院分区：
文献类型：
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作者：
C. Turner;M. Frankel
LEED真的能节约能源吗？这项研究通过对全国121座LEED建筑的使用后评估来解决这个问题。研究的输入包括能源账单和业主对实际建筑使用的简要描述，以及来自USGBC的LEED提交文件的建模能源使用信息。实际的建筑性能是通过几个整体建筑指标：能源使用强度（EUI）相对于国家平均水平，能源星星评级，能源使用水平相对于初始ASHRAE 90.1建模。出现了两个总体结果。首先，在这些不同的测量中，LEED建筑性能平均比基准高出25 - 30%。然而，即使对于类似的建筑活动和气候区，个别结果也存在很大差异，这表明有进一步改进的潜力。本文介绍了一般EUI模式，能源星星评级，以及它们与LEED能源信用的关系。（关于初始建模作为预测节能工具的有效性的进一步讨论将作为单独的论文提出。讨论还包括研究过程和目前对这些努力的挑战。为鼓励业主参与这项综合研究，我们向他们提供了一份有关其个别建筑物结果的报告，其中包括（如有需要）一项可供选择的住户调查，以进一步完善对建筑物性能的看法。
Is LEED delivering actual energy savings? This study addresses that question with a post-occupancy assessment of 121 LEED buildings across the country. Input to the study consisted of energy bills and brief descriptions of actual building use from owners, plus modeled energy usage information from the USGBC’s LEED submittal files. The actual building performance was viewed through several whole-building metrics: energy use intensity (EUI) relative to national averages, Energy Star ratings, and energy use levels relative to the initial ASHRAE 90.1 modeling. Two overall results emerged. First, across each of these varied measurements, LEED building performance averaged 25 – 30% better than the benchmark. However, there is also wide variation within the individual results, even for similar building activities and climate zones, suggesting potential for significant further improvements. This paper presents general EUI patterns, Energy Star ratings, and their relationship to LEED energy credits. (Further discussion of the effectiveness of the initial modeling as a tool to predict energy savings is presented as a separate paper.) The discussion also covers the study process and current challenges to such efforts. As an incentive to participate in this aggregate study, owners were given a report of their individual building results including, where desired, an optional occupant survey to further round out the view of building performance.