Green Hydrogen vs Conventional Energy Sources: A LCA Case Study of Aluminum Casting
グリーン水素 vs 従来エネルギー源：アルミニウム鋳造のLCAケーススタディ (AI 翻訳)
I. Bianchi, Pietro Forcellese, Gioacchino Fratini, T. Lamberti, T. Mancia, M. Simoncini
🤖 gxceed AI 要約
日本語
本研究は、アルミニウムダイカストにおける4つのエネルギー供給システム（天然ガス、系統電力、太陽光発電＋蓄電池、太陽光発電＋水素製造＋金属水素化物貯蔵）の環境持続可能性をLCAで比較評価した。結果、再生可能エネルギー由来のソリューションは最大62%の影響低減を示し、特に太陽光＋蓄電池が最も低い単位影響（0.15 kg CO2 eq/kWh）を達成した。グリーン水素も大幅な削減効果と運用柔軟性を示した。
English
This study compares four energy supply systems for aluminum die casting via LCA: natural gas, grid electricity, PV+battery, and PV+hydrogen+metal-hydride storage. Renewable-based solutions reduce impacts up to 62%, with PV+battery achieving the lowest unitary impact (0.15 kg CO2 eq/kWh). Green hydrogen also offers significant reductions and operational flexibility.
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
日本のアルミニウム産業はエネルギー多消費型であり、水素基本戦略の下でのグリーン水素活用が期待される。本論文は、実際の鋳造工程でのLCA比較を提供し、日本企業の脱炭素化判断に有用な定量的エビデンスとなる。
In the global GX context
This paper provides a rigorous LCA comparison of green hydrogen versus batteries for industrial heat, a critical question for global hard-to-abate sectors. The findings support the role of green hydrogen as a flexible decarbonization option, complementing direct electrification.
👥 読者別の含意
🔬研究者:Provides comparative LCA data for hydrogen vs battery storage in industrial thermal applications.
🏢実務担当者:Offers quantitative evidence to guide energy sourcing decisions in aluminum casting and similar industries.
🏛政策担当者:Supports policy design for industrial decarbonization, highlighting the complementary roles of green hydrogen and direct electrification.
📄 Abstract（原文）
Aluminum components production is associated with significant greenhouse gas emissions due to both raw material extraction and energy-intensive manufacturing processes. In particular, the melting phase required high thermal energy and conventional energy sources (e.g. fossil fuels, national grids...) can result in relevant environmental impacts. This study evaluates the environmental sustainability of four different energy supply systems for aluminum die casting through a comparative Life Cycle Assessment (LCA). Four scenarios were analyzed: natural gas, national grid electricity, photovoltaic (PV) electricity with battery storage, and PV-powered hydrogen production with metal-hydride storage. A cradle-to-gate approach was adopted, including energy production, storage, raw materials extraction, tool manufacturing, casting operations and finishing. The environmental impacts were modelled using SimaPro, and Global Warming Potential (GWP) was calculated according to the Intergovernmental Panel on Climate Change (IPCC) methodology. The results show that renewable-based solutions represent the most sustainable alternatives, with impact reductions up to 62% compared with traditional approaches. PV electricity with battery storage achieves the lowest unitary impacts (0.15 kg CO₂ eq/kWh). Hydrogen produced from PV electricity also provides significant reductions relative to natural gas and grid electricity and offers high operational flexibility. The metal-hydride storage system shows slightly lower impacts than battery storage, due to its long service life and minimal hydrogen losses. These results highlight the potential of renewable energy and green hydrogen as alternative energy carriers for industrial production.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://doi.org/10.4028/p-y0qeyofirst seen 2026-05-15 19:49:08
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