Injecting hydrogen into subsurface environments could provide seasonal energy storage, but understanding of technical feasibility is limited as large-scale demonstrations are scarce. Now, field tests show that hydrogen can be stored and microbially converted to methane in a depleted underground hydrocarbon reservoir.

中文翻译：

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现场测试氢气

将氢气注入地下环境可以提供季节性能源储存，但由于缺乏大规模示范，对技术可行性的了解有限。现在，现场测试表明，氢气可以在枯竭的地下碳氢化合物储层中储存并通过微生物转化为甲烷。