サウジアラビア王国における多結晶および単結晶太陽光発電システムの比較ライフサイクル評価
Comparative Life-Cycle Assessment of Polycrystalline and Monocrystalline Solar Photovoltaic Systems in the Kingdom of Saudi Arabia (原題)
Saeed Bin Hassan, Awad Bin Saud Alquaity
🤖 gxceed AI 要約
日本語
サウジアラビアの大規模結晶シリコンPV（サカカ、スデア、ジェッダ、シュアイバ等）を対象に、ISO 14040/14044とIEA PVPS Task 12に沿ったライフサイクル炭素評価を実施。単結晶は単位容量当たりの内包排出が多結晶よりわずかに高いが、発電量で基準化した炭素強度は同等。NEOMやジェッダの高い発電量が低いGHG強度をもたらし、技術差より立地効果が大きいことを示した。
English
A cradle-to-gate-plus-use LCA of utility-scale crystalline-silicon PV in Saudi Arabia (Sakaka, Sudair, Jeddah, Shuaibah) following ISO 14040/14044 and IEA PVPS Task 12. Monocrystalline panels show marginally higher embodied emissions per installed capacity than polycrystalline, but yield-normalized carbon intensity is comparable. Higher generation at NEOM and Jeddah yields lower life-cycle GHG intensity, showing location effect exceeds technology effect.
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
日本企業が関与する海外PV調達やサプライチェーン上流（中国シリコン・東南アジア組立）の排出を可視化する点で、Scope 3カテゴリ3や再エネ調達の炭素強度評価に示唆を与える。国内の太陽光導入・調達判断にも応用可能。
In the global GX context
Adds empirical LCA evidence on PV supply-chain carbon intensity relevant to Scope 3 Category 3 accounting and renewable procurement disclosure under GHG Protocol/ISSB. Highlights that siting dominates technology choice for low-carbon electricity, informing transition and renewable procurement strategy.
👥 読者別の含意
🔬研究者:PVライフサイクル炭素強度の立地効果と技術効果の比較に関する実証データを提供する。
🏢実務担当者:再エネ調達やScope 3排出算定で、パネル技術より立地・発電量が炭素強度に効くことを踏まえた調達判断に使える。
🏛政策担当者:大規模PV導入の低炭素性評価において、技術選択より立地設計を重視する政策設計の根拠となる。
📄 Abstract（原文）
Utility-scale solar photovoltaic (PV) deployment in the Kingdom of Saudi Arabia is rapidly expanding under Vision 2030, bringing the total commissioned and under-construction capacity to over 4 GW. This study evaluated the life-cycle carbon emissions of largescale crystalline-silicon PV systems in Saudi Arabia, comparing polycrystalline and monocrystalline panels in projects exceeding 200 MW. Representative plants included Sakaka (300 MW, Al Jouf), Sudair (1,500 MW, Riyadh Province), Jeddah (300 MW), and Shuaibah (2,060 MW), reflecting current international supply chains with upstream silicon production concentrated in China and cell and module assembly occurring across Southeast Asian hubs. The life-cycle assessment (LCA) followed the ISO 14040/14044 principles and International Energy Agency (IEA) PV Power Systems (PVPS) Task 12 guidelines, applying a cradle-to-gate-plus-use boundary covering raw material extraction, wafer and cell processing, module assembly, balance-of-system components, transportation, installation, and operation. Life-cycle-inventory data were obtained from the IEA PVPS Task 12 consensus inventory and cross-validated against recent peer-reviewed and National Renewable Energy Laboratory-maintained utility-scale LCA literature. Energy yield was estimated using RETScreen Expert for NEOM, Riyadh, and Jeddah, representing distinct climatic zones. The results indicate that monocrystalline systems exhibit marginally higher embodied emissions per unit of installed capacity than those of polycrystalline systems, whereas the yield-normalized carbon intensity is comparable within each location. Higher electricity generation at NEOM and Jeddah resulted in lower life-cycle greenhouse gas intensities, indicating that the location effect is greater than the technology effect. These findings support evidence-based PV technology selection and deployment for low-carbon electricity generation in Saudi Arabia.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://www.journalssystem.com/juri/pdf-231613-148031?filename=Comparative-Life-Cycle-As.pdffirst seen 2026-10-17 05:26:01 · last seen 2026-11-03 05:37:18
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