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<p>Geological thermal energy storage (GeoTES) is an emerging technology that addresses the critical need for large-scale, long-duration energy storage. GeoTES stores thermal energy in geological formations, enabling later use for direct heating, cooling, or electricity generation. We describe characteristics of viable formations and estimate the energy capacity of four reservoirs in the United States to illustrate the immense storage potential of GeoTES – on the scale of terawatt-hours per formation.</p>

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Geological thermal energy storage offers terawatt-hours of energy storage capacity

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年5月4日

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  • Erik Witter,
  • Dayo Akindipe,
  • Guangdong Zhu,
  • Josh McTigue

摘要

Geological thermal energy storage (GeoTES) is an emerging technology that addresses the critical need for large-scale, long-duration energy storage. GeoTES stores thermal energy in geological formations, enabling later use for direct heating, cooling, or electricity generation. We describe characteristics of viable formations and estimate the energy capacity of four reservoirs in the United States to illustrate the immense storage potential of GeoTES – on the scale of terawatt-hours per formation.