Gaps and Missing Links Between Circular Economy and Energy Models for the Construction Industry
サーキュラーエコノミーと建設業向けエネルギーモデルの間のギャップと欠落したリンク (AI 翻訳)
Husam Sameer, Hans H. Dürr, Martina Flörke, Simon Slabik, Annette Hafner, Juliana Barbosa, Sofia G. Simões, Ana T. Lima, Teklit Ambaye, Iryna Natalukha, Pierluigi Zerbino, Davide Aloini, V.G. Ram, Andrea Genovese, Nuria Sanchez, Helena Lopez Moreno
🤖 gxceed AI 要約
日本語
本論文は、建設業における循環経済（CE）のエネルギーモデルへの統合状況を評価する。JRC-EU-TIMES、EnergyPLAN、PRIMES、LUT-ESTMなどの主要モデルはエネルギー中心であり、リサイクル以外の循環戦略はほとんど考慮されていない。JETモデルの進化と、材料循環の体積エネルギー・炭素削減効果を組み込む必要性を指摘する。
English
This paper evaluates the integration of circular economy (CE) into energy models for the construction industry. It finds that models like JRC-EU-TIMES, EnergyPLAN, PRIMES, and LUT-ESTM are mainly energy-centric, with only partial recycling representation. Higher-order circular strategies are absent. The study highlights the JET model's use of exogenous demand adjustments and endogenous optimization to bridge gaps, and calls for models to account for embodied energy and carbon mitigation from circular material flows.
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
日本の建設業はエネルギー・素材の大消費部門であり、GX政策では循環経済の推進が重要視されている。本論文が指摘するモデリングのギャップは、日本のエネルギーモデル（例：AIM/日本）における材料循環の統合を改善するための示唆を与える。特に、鉄鋼やコンクリートの循環による排出削減ポテンシャルを定量化する際に有用。
In the global GX context
Globally, this paper highlights the need for energy models to incorporate circular economy strategies beyond recycling. This is pertinent for ISSB and TCFD reporting on embodied carbon, and for transition finance in construction. The JET model's approach offers a methodology that could be applied in other regions to better capture the climate benefits of material circularity.
👥 読者別の含意
🔬研究者:This paper identifies critical modeling gaps and suggests pathways for integrating circular economy into energy system models, which is useful for researchers working on energy-climate modeling and material flow analysis.
🏢実務担当者:For corporate sustainability teams in construction, this paper underscores the importance of accounting for circular material flows in energy and carbon footprint calculations.
🏛政策担当者:Policymakers should note that current energy models may underestimate mitigation potential from circular strategies; integrating material circularity could inform more ambitious climate targets.
📄 Abstract（原文）
Abstract Energy models are critical for the construction industry’s transition towards a Circular Economy (CE) and for meeting climate mitigation targets. However, conventional modeling frameworks frequently overlook the critical interplay between energy systems and material circularity. This article evaluates the current state of CE integration within prominent energy models—such as JRC-EU-TIMES (JET), EnergyPLAN, PRIMES, and LUT-ESTM—with a specific focus on the construction industry. Through a literature review and a comparative analysis of model architectures, the study identifies a significant gap. Most models remain “energy-centric,” focusing on technology transitions while CE perspectives are rarely considered. However, recycling (notably for steel) is partially represented in the reviewed models, higher-order circular strategies like reuse, remanufacturing, and repair are largely absent due to data limitations and the complexity of modeling material life cycles. The research highlights recent evolution of the JET model, which utilizes exogenous demand adjustments and endogenous technological optimization to bridge these gaps. By disaggregating industrial and construction sub-sectors and implementing detailed material mass balances. Moreover, to accurately support climate neutrality goals, energy models must evolve to account for the embodied energy and carbon mitigation potential of circular material flows, particularly for underserved sectors like bricks and insulation.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1007/s42824-026-00238-4first seen 2026-06-12 04:51:15 · last seen 2026-06-16 04:41:02
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