Article

The Praid salt mine in Romania faced indefinite closure in July 2025 due to flooding from the Corund River, which had swollen significantly after torrential rains. This mine, a major economic and tourist site, produced up to 100,000 metric tons of salt annually.

As the global energy crisis evolves, salt caverns are being considered for energy storage solutions, such as compressed air energy storage (CAES) and hydrogen storage, leveraging their unique properties. Projects like the Jintan Salt Cave CAES in China, which aims to generate 924 GWh of energy annually, highlight the potential of these caverns for sustainable energy. However, challenges include geological constraints and safety concerns.