コスト最適化を用いたEUの低炭素システムへのエネルギー転換におけるPower-to-Methaneの可能性
Potential of Power-to-Methane in the EU energy transition to a low carbon system using cost optimization (原題)
Blanco, Herib, Nijs, Wouter, Ruf, Johannes, Faaij, André
🤖 gxceed AI 要約
日本語
本研究は、2050年のEUにおけるPower-to-Methane（PtM）のメタネーションに焦点を当て、80-95%のCO2削減シナリオを分析。CO2地下貯蔵なし・低CAPEX条件下で40GWの導入が見込まれ、液化メタン輸送利用で122GWに増加。全ての促進要因が揃うと546GW（ガス需要の75%）に達する。年間コストは25-100億ユーロで、技術への直接補助が化石燃料課税より効果的と示唆。
English
This study focuses on the methanation component of Power-to-Methane (PtM) in the EU in 2050, analyzing scenarios with 80-95% CO2 reduction. PtM emerges under conditions of no CO2 underground storage and low CAPEX, with capacity reaching 40 GW (8% of gas demand), increasing to 122 GW with liquefied methane for marine transport. With all positive drivers, capacity could reach 546 GW (75% of gas demand). Annual costs are 2.5-10 billion euros, and direct subsidy is more effective than taxing fossil alternatives.
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GX文脈では、水素・メタネーション技術の導入検討に参考となる。特に、CO2地下貯蔵が困難な日本では、PtMが有力な選択肢となり得る。政策支援の効果的な設計（直接補助 vs 課税）について示唆を与える。
In the global GX context
In the global GX context, this paper provides insights into the role of Power-to-Methane in deep decarbonization scenarios, relevant for countries with limited CO2 storage options. It highlights the importance of cost optimization and policy design in promoting emerging technologies, contributing to the discourse on transition finance and technology-specific subsidies.
👥 読者別の含意
🔬研究者:Provides a cost-optimization framework for assessing PtM in energy transition scenarios, useful for modeling similar pathways in other regions.
🏢実務担当者:Offers insights into the economic viability of PtM projects and the impact of policy mechanisms, aiding investment decisions in renewable gas infrastructure.
🏛政策担当者:Informs on the effectiveness of direct subsidies versus carbon taxes in promoting PtM technology, relevant for designing decarbonization policies.
📄 Abstract（原文）
Power-to-Methane (PtM) can provide flexibility to the electricity grid while aiding decarbonization of other sectors. This study focuses specifically on the methanation component of PtM in 2050. Scenarios with 80–95% CO 2 reduction by 2050 (vs. 1990) are analyzed and barriers and drivers for methanation are identified. PtM arises for scenarios with 95% CO 2 reduction, no CO 2 underground storage and low CAPEX (75 €/kW only for methanation). Capacity deployed across EU is 40 GW (8% of gas demand) for these conditions, which increases to 122 GW when liquefied methane gas (LMG) is used for marine transport. The simultaneous occurrence of all positive drivers for PtM, which include limited biomass potential, low Power-to-Liquid performance, use of PtM waste heat, among others, can increase this capacity to 546 GW (75% of gas demand). Gas demand is reduced to between 3.8 and 14 EJ (compared to ∼20 EJ for 2015) with lower values corresponding to scenarios that are more restricted. Annual costs for PtM are between 2.5 and 10 bln€/year with EU28’s GDP being 15.3 trillion €/year (2017). Results indicate that direct subsidy of the technology is more effective and specific than taxing the fossil alternative (natural gas) if the objective is to promote the technology. Studies with higher spatial resolution should be done to identify specific local conditions that could make PtM more attractive compared to an EU scale.
🔗 Provenance — このレコードを発見したソース
- base https://hdl.handle.net/11370/48eb9574-82a9-4dc6-883e-517ef1491208first seen 2026-09-01 12:07:06
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