Developing an energy audit methodology for assessing decarbonization potential in high performance buildings

IF 7.1 Q1 ENERGY & FUELS
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引用次数: 0

Abstract

High-performance buildings (HPBs) are designed to minimize environmental impacts during operation, but ensuring continuous efficiency improvements remains a challenge. Existing energy audit methodologies have been developed with limited support of precise operational data. However, the advent of Building Energy Management Systems (BEMS) and the establishment of de facto industry standards for building service and space usage have enabled energy audits to be conducted at an unprecedented level of detail. Taking advantage of these developments, this study proposes an original integrated approach for HPB by combining a standard energy audit framework with BEMS data. The novel method conducts: (1) detailed energy and water consumption profiling across multiple timescales; (2) benchmarking using data envelopment analysis against other HPBs; (3) building diagnostics to identify further carbon reduction opportunities; and (4) marginal abatement cost analysis to explore economically feasible improvement measures for owners. When specifically applied to an HPB in Tokyo, the findings reveal substantial room for further improvements. At least 10.1% in energy saving potential exists compared to the building’s design performance. Moreover, implementing selected cost-effective measures could economically achieve an 8.9% reduction in CO2 emissions. This multifaceted study makes three key original contributions. First, it develops a systematic energy audit methodology tailored to BEMS-equipped HPBs, enabling granular, spatiotemporal analysis of resource consumption. Second, it extends this framework beyond energy to holistically encompass water consumption. Third, it provides quantitative evidence that even highly-rated HPBs may still have significant remaining potential for operational environmental impact reductions, which can be identified in detail through the proposed approach. Overall, by harnessing BEMS data and industry standards, this research demonstrates a feasible and cost-effective pathway for HPB owners and operators to continuously optimize resource efficiency. As the urgency of climate action intensifies, this innovative approach offers a crucial toolkit for the building sector to enhance its contribution to global sustainability goals.
开发评估高性能建筑脱碳潜力的能源审计方法
高性能建筑(HPBs)的设计旨在最大限度地减少运行期间对环境的影响,但确保持续提高效率仍是一项挑战。现有的能源审计方法是在有限的精确运行数据支持下开发出来的。然而,随着建筑能源管理系统(BEMS)的出现,以及建筑服务和空间使用实际行业标准的建立,能源审计得以在前所未有的详细程度上进行。利用这些发展,本研究通过将标准能源审计框架与 BEMS 数据相结合,为 HPB 提出了一种独创的综合方法。新方法包括(1)跨时间尺度的详细能耗和水耗分析;(2)使用数据包络分析法与其他 HPB 进行基准比较;(3)建筑诊断,以确定进一步的碳减排机会;以及(4)边际减排成本分析,为业主探索经济上可行的改进措施。在具体应用于东京的一座 HPB 时,研究结果显示了进一步改进的巨大空间。与建筑物的设计性能相比,至少存在 10.1% 的节能潜力。此外,实施选定的具有成本效益的措施可以经济地减少 8.9% 的二氧化碳排放量。这项多方面的研究做出了三项重要的原创性贡献。首先,它为配备了 BEMS 的 HPB 专门开发了一种系统化的能源审计方法,可对资源消耗进行细粒度的时空分析。其次,它将这一框架扩展到能源之外,全面涵盖了水资源消耗。第三,它提供了定量证据,表明即使是评级较高的高危公共运输车辆,在减少运营对环境的影响方面仍有很大的潜力,这些潜力可以通过建议的方法详细确定。总之,通过利用 BEMS 数据和行业标准,这项研究为高温室气体排放企业的所有者和经营者持续优化资源效率展示了一条可行且具有成本效益的途径。随着气候行动的紧迫性不断加强,这一创新方法为建筑行业提供了一个重要的工具包,以增强其对全球可持续发展目标的贡献。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
8.80
自引率
3.20%
发文量
180
审稿时长
58 days
期刊介绍: Energy Conversion and Management: X is the open access extension of the reputable journal Energy Conversion and Management, serving as a platform for interdisciplinary research on a wide array of critical energy subjects. The journal is dedicated to publishing original contributions and in-depth technical review articles that present groundbreaking research on topics spanning energy generation, utilization, conversion, storage, transmission, conservation, management, and sustainability. The scope of Energy Conversion and Management: X encompasses various forms of energy, including mechanical, thermal, nuclear, chemical, electromagnetic, magnetic, and electric energy. It addresses all known energy resources, highlighting both conventional sources like fossil fuels and nuclear power, as well as renewable resources such as solar, biomass, hydro, wind, geothermal, and ocean energy.
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