Whole-life emissions of retrofitting a pre-1919 house in Scotland: a whole-building approach
スコットランドの1919年以前の住宅改修における全寿命排出：建物全体アプローチ (AI 翻訳)
Rania Obead, Lina Khaddour, Bernardino D’Amico
🤖 gxceed AI 要約
日本語
本研究は、スコットランドの古い住宅を対象に、断熱材やヒートポンプ、太陽光発電などの改修パッケージの全寿命排出を評価した。LCAと建物性能シミュレーションを組み合わせ、改修によるエネルギー需要と排出の50%超削減を示し、炭素回収期間は1年未満と短い。低炭素素材の活用が重要と結論づける。
English
This study assesses the whole-life carbon emissions of retrofitting a pre-1919 Scottish house using LCA and building simulation. A package of fabric upgrades, heat pump, and PV reduces energy demand and emissions by over 50% with a carbon payback of under one year. It emphasizes the use of low-embodied-carbon materials.
Unofficial AI-generated summary based on the public title and abstract. Not an official translation.
📝 gxceed 編集解説 — Why this matters
日本のGX文脈において
日本の住宅ストックも多くが古く、省エネ改修の推進が急務。本論文のLCAとシミュレーションを組み合わせた評価手法は、日本の既存住宅改修の効果検証や政策立案に応用可能である。特に、全寿命排出の視点は、日本のカーボンニュートラル目標達成に有用。
In the global GX context
Building retrofits are critical for global decarbonization. This paper provides a reproducible LCA-based methodology for evaluating whole-life emissions of retrofit packages, relevant for countries with old building stocks. The findings support ambitious policy targets like Scotland's 2045 net-zero by demonstrating deep emission cuts with short carbon payback.
👥 読者別の含意
🔬研究者:The LCA-BPS integrated methodology offers a reproducible framework for building retrofit assessment.
🏢実務担当者:The results quantify emission reductions from specific retrofit measures, guiding material and system selection for deep renovation projects.
🏛政策担当者:Evidence of substantial emission cuts (over 50%) and short carbon payback supports strengthening building retrofit mandates and incentives.
📄 Abstract（原文）
Introduction: In recent years, the impacts of climate change have become more pronounced, necessitating a net-zero economy to mitigate them. Scotland has an ambitious plan to reach a zero-emission economy by 2045. To achieve this plan, significant work is required in all economic sectors, including the built environment, to reduce emissions. Existing buildings are a major contributor to climate change; therefore, sustainable, low-emission plans should be used in their retrofitting. Materials and methods: This study presents a reproducible paradigm for whole-building retrofit assessment that integrates life-cycle assessment with building performance simulation. This plan consists of measuring the house’s baseline impact, proposing fabric and heating system upgrades, and integrating renewable energy. The embodied carbon of each material was calculated to assess the total life-cycle impact of the interventions. After that, we compared the retrofit plan with the baseline energy performance and carbon emissions. Results: This study demonstrated the impact of implementing a whole-building retrofit package. Upgrading the case study fabric and integrating Heat Pump (HP) had a significant impact, reducing energy demand and emissions by more than 50% each, with a reasonable carbon payback period of less than a year for both. Upgrading the heating system to a high-efficiency model reduced energy demand and emissions by around 10%. Integrating a photovoltaics (PV) system into the selected case study met about 10% of the house’s energy demand but had a long carbon payback period. Conclusions: The results of this research show that implementing low-embodied-carbon retrofit materials can achieve substantial reductions in carbon emissions and energy consumption while maintaining low embodied carbon.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.20935/acadenergy8285first seen 2026-05-21 04:33:44
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