Power-to-X戦略の環境・経済トレードオフ：地区規模再生可能エネルギーコミュニティのケーススタディ
Environmental and Economic Trade-Offs of Power-to-X Strategies: A District-Scale Renewable Energy Community Case Study (原題)
Vittoria Battaglia, Remo Santagata, Laura Vanoli
🤖 gxceed AI 要約
日本語
南イタリアの再生可能エネルギーコミュニティを対象に、技術経済分析とライフサイクル評価を統合した枠組みでPower-to-Power、Power-to-Gas、Power-to-Gas-to-Powerの3経路を比較した。Power-to-Powerは自給率を46%から71%へ高め、Power-to-Gasは回収期間6年と最短。環境影響はベースライン・P2P・P2GでBAU比53%・44%・40%削減されるが、P2G2Pは燃料電池追加でやや増加する。
English
This study integrates techno-economic analysis and LCA to compare three Power-to-X pathways in a Southern Italian renewable energy community. Power-to-Power raises self-sufficiency from 46% to 71%, while Power-to-Gas offers the shortest payback (6 years). Life-cycle impacts fall 53%/44%/40% for baseline/P2P/P2G versus business-as-usual, though P2G2P rises slightly due to the fuel cell.
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
日本でも地域再エネ・セクターカップリングはGX推進の重要テーマであり、自給率向上と回収期間の定量評価は自治体・企業の脱炭素投資判断に示唆を与える。SSBJや有報での気候関連開示における移行計画の根拠としても活用可能。
In the global GX context
As ISSB/CSRD push transition-plan disclosure, this district-scale integrated LCA + techno-economic framework offers a replicable method for substantiating sector-coupling claims in climate reporting and transition finance.
👥 読者別の含意
🔬研究者:セクターカップリングの環境・経済統合評価手法とシステム拡張仮定の感度分析が参考になる。
🏢実務担当者:地域再エネ投資の回収期間と自給率向上効果を定量的に把握し、脱炭素計画の立案に活用できる。
🏛政策担当者:再エネコミュニティ政策やセクターカップリング支援策の設計に、環境・経済トレードオフのエビデンスを提供する。
📄 Abstract（原文）
Sector coupling strategies are increasingly adopted to improve the flexibility and efficiency of renewable energy systems by integrating multiple end-users, energy sectors, and conversion technologies. However, their widespread deployment relies on additional infrastructure and energy conversion processes, raising questions about the associated environmental and economic trade-offs. Despite the growing interest in Power-to-X technologies, integrated assessments simultaneously evaluating energy, economic, and environmental performance at the district scale remain limited. This study proposes an integrated framework combining techno-economic analysis and life cycle assessment to evaluate alternative Power-to-X strategies within a regenerated renewable energy community in Southern Italy. Three sector coupling pathways are compared: Power-to-Power, Power-to-Gas, and Power-to-Gas-to-Power. The results highlight different trade-offs among the investigated configurations. The Power-to-Power scenario achieves complete renewable electricity self-consumption and increases system self-sufficiency from 46% to 71%, whereas the Power-to-Gas configuration provides the shortest payback period (6 years). From an environmental perspective, the baseline, Power-to-Power, and Power-to-Gas scenarios reduce average life cycle impacts by 53%, 44%, and 40%, respectively, compared with the business-as-usual configuration, while the Power-to-Gas-to-Power scenario exhibits slightly higher impacts due to the additional fuel cell system. Furthermore, the environmental ranking of the scenarios depends on the adopted system expansion assumptions, particularly the avoided burden approach. The proposed framework provides a comprehensive basis for evaluating sector coupling strategies in renewable energy communities, supporting decision making through the integrated assessment of environmental performance, economic viability, and energy self-sufficiency.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.3390/en19174148first seen 2026-09-22 04:34:35
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