余剰エネルギー活用のための系統連系型塩洞窟水素貯蔵システム
Grid Integrated Hydrogen Storage System for Surplus Energy Utilization Using Salt Cavern (原題)
Digvijay Kumar Gupta, D. Mukherjee, Karuna Kalita
🤖 gxceed AI 要約
日本語
本研究は、再生可能エネルギーの余剰電力を用いたグリーン水素製造と、塩洞窟への長期貯蔵の可能性を検討した。2024年のデータから余剰電力を推計し、電解装置と塩洞窟の容量、必要数を算出した。17.08TWhの余剰電力から約3.24×10^8kgの水素が製造可能で、ビカネール・ナガウル・ガンガナガル盆地の塩洞窟（50万m3）は3082.2トンの水素を貯蔵でき、約53基の洞窟が必要と試算された。
English
This study assesses using surplus renewable electricity for green hydrogen production and long-duration storage in salt caverns. Using 2024 data, it estimates 17.08 TWh surplus yielding ~3.24×10^8 kg H2. A 500,000 m3 salt cavern in the Bikaner-Nagaur-Ganganagar basin can store 3,082.2 tons at 85% safety factor, requiring about 53 caverns for two annual cycles.
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
日本では再生可能エネルギーの導入拡大に伴い余剰電力の増加が課題となっており、水素貯蔵技術はエネルギー安定供給と脱炭素化の両立に寄与する可能性がある。特に、系統制約の緩和や長期エネルギー貯蔵の観点から、国内の水素政策やGX推進に示唆を与える。
In the global GX context
Globally, this research supports the integration of underground hydrogen storage with renewable curtailment management, aligning with energy transition goals and long-duration storage needs. It provides a quantitative framework that can inform policy and investment decisions for hydrogen infrastructure in regions with salt cavern potential.
👥 読者別の含意
🔬研究者:Provides a computational methodology for estimating surplus energy and sizing salt cavern hydrogen storage, useful for energy system modeling.
🏢実務担当者:Offers insights into the scale of hydrogen storage required to utilize surplus renewable energy, aiding feasibility studies for similar projects.
🏛政策担当者:Highlights the potential of salt cavern hydrogen storage for managing renewable curtailment, informing energy storage policy and infrastructure planning.
📄 Abstract（原文）
The rapid deployment of renewable energy such as solar and wind, has led to creation of the renewable energy curtailment and surplus electricity .This surplus occurs due to difference between supply and demand , grid capacity and constrained and limited system flexibility. This study investigates the potential utilization of surplus electricity for green hydrogen production using electrolyzer and stored in salt cavern for long duration energy storage. A computational methodology is adopted to estimate the surplus energy from the data from 2024 and find out how much hourly surplus is happening, proposed salt cavern storage volumetric capacity, total hydrogen gas generation, and the required number of salt caverns. Using an estimated surplus energy input of 17.08 TWh and an electrolyser SEC of 55 kWh kg−1, the total green hydrogen production is estimated to be around 3.24 × 108 kg. The proposed Bikaner Nagaur Ganganagar basin’s salt cavern has a volumetric capacity of 500000 m3, which allowed it to store 3082.2 tons of hydrogen at an 85% safety factor. The effective number of caverns needed is found to be close to 53, taking into account a single salt cavern’s storage capacity of 3082 tons of hydrogen and two annual operating charge-discharge cycles. This analysis effectively identifies the significance of optimization for the economic viability of lower cycling frequencies, significantly increasing the total number of caverns required. To enable future renewable energy supply systems, these findings offer a suitable foundation for combining underground hydrogen storage with renewable energy curtailment. About 53 caverns at the national level, along with electrolysers of the right size, are used to manage the surplus electricity.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://doi.org/10.1109/ne-iecce69680.2026.11666465first seen 2026-09-15 04:58:30 · last seen 2026-09-21 05:04:46
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