Energy scenarios for the decarbonisation of the building stock in the context of the energy system transformation
建築ストックの脱炭素化に向けたエネルギーシナリオ：エネルギーシステム変革の文脈で (AI 翻訳)
A. Tosatto, F. Ochs, E. Venturi, M. Magni, Simon Beck
🤖 gxceed AI 要約
日本語
本稿はオーストリアの建築ストックを対象に、BAUとBESTの2つの脱炭素化シナリオと3つのエネルギーシステム構成（現状の電力系統、再エネ系統＋輸入、再エネ自給＋水素貯蔵）を分析。結果、システム構造が対策の有効性に強く影響し、KPIの選択は境界条件に依存することを明らかにした。完全な脱炭素化には輸入電力の排出係数や自給率の考慮が必要である。
English
This study examines building stock decarbonization scenarios for Austria, comparing a BAU and a BEST scenario across three energy system configurations. Findings highlight that the structure of the energy system significantly influences the effectiveness of decarbonization measures. Key performance indicators are sensitive to boundary conditions, and a fully decarbonized building stock in a renewable-based system requires accounting for seasonal gaps and import dependencies.
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
オーストリア事例だが、建物ストックの脱炭素化と再エネシステムの季節間ギャップ対策は日本のエネルギー政策にも示唆を与える。特に、自給率や輸入電源の排出係数に依存する評価指標の選択は、日本のSSBJやTCFD開示におけるシナリオ分析の設計に有用である。
In the global GX context
This paper contributes to the global energy transition literature by illustrating the importance of system boundaries in building stock scenario modeling. It emphasizes that renewable energy integration requires careful consideration of seasonal storage and import dependencies, which is relevant for countries pursuing deep decarbonization.
👥 読者別の含意
🔬研究者:Researchers modeling building stock energy scenarios should consider the sensitivity of KPIs to energy system assumptions.
🏢実務担当者:Corporate sustainability teams can use this study to understand the role of renewable energy integration in building decarbonization strategies.
🏛政策担当者:Policymakers should recognize that building stock decarbonization targets must align with broader energy system planning, especially regarding seasonal gaps and import reliance.
📄 Abstract（原文）
Decarbonising the building stock relies on the strategies of efficiency, sufficiency and consistency. Building stock energy scenarios (BSES) help evaluate the effect of these measures by modelling the existing building stock and using appropriate inputs, but must also account for boundary conditions, such as the structure of the energy system. In renewable energy (RE)-based systems, high summer generation contrasts with winter building stock demand, creating a seasonal gap. This study presents two BSES for Austria: a BAU scenario with standard decarbonisation measures (HVAC change and renovation rates) and a BEST scenario with more ambitious rates. Three energy system configurations are considered: (A) a demand-independent energy system based on current data of the Austrian electricity generation, (B) a RE-based generation system in terms of net-annual balance with the energy demand but connected with surrounding countries, and (C) an autarkic RE-based system with seasonal storage (based on green hydrogen). The key performance indicators (KPIs) used to assess the decarbonisation of a system are the equivalent CO 2 emissions, the load cover factor (LCF) and the required PV generation to reach energy autarky. The results show that the assumption of the energy system structure has a strong impact on the effectiveness of different measures. Hence, the choice of the KPIs is sensitive with respect to the boundary conditions. A building stock within a RE-based domestic energy system relying on energy imports to cover the winter gap cannot be considered fully decarbonised, if the import electricity mix is not known. On the other hand, an autarkic system is not feasible if the domestic demand exceeds the RE potential. The RE mix of the generation system, along with the load characteristics, has an impact on the winter gap magnitude, consequently influencing the energy imports or the seasonal storage requirements.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://doi.org/10.1371/journal.pclm.0000842first seen 2026-05-15 20:37:06
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