Mine park energy storage reservoir

What is mine storage?

Mine Storage is a company with a vision and commitment to enable a zero-carbon grid by using underground mines to store energy and to balance the grid. In December 2024, the Swedish energy storage company Mine Storage successfully closed a directed rights issue among existing shareholders.

Why are energy storage systems needed?

Energy storage systems are required to increase the share of renewable energy. Closed mines can be used for underground energy storage and geothermal generation. Underground closed mines can be used as lower water reservoir for UPHES. CAES systems store energy in the form of compressed air in an underground reservoir.

Can abandoned mines be used as reservoirs for PSPPs?

The use of abandoned mines underground spaces and currently operating mines as reservoirs for PSPPs offers an alternative solution for storing and managing surplus electricity. In 1901, Fessenden proposed the idea of storing natural interstitial energy, for instance, solar energy and wind energy.

How does a mine storage support the energy system?

A mine storage supports the energy system in several ways, often simultaneously. It can act as energy storage, grid frequency regulator, capacity reserve, transmission support, inertia provider, or as a behind-the-meter solution to support large energy producers or energy-intensive industries.

Does China energy investment build underground pumped storage reservoirs?

The China Energy Investment has built underground reservoirs in the goafs of multiple mines in the Shendong mining area , which provides a reference for the construction of all-underground pumped storage reservoirs. The “closed” PASM has very little evaporation and no requirements on the surface area.

Are pumped storage reservoirs enclosed underground?

The reservoirs are enclosed underground, so this is referred to as “enclosed” PSAM, as shown in Fig. 7 (b). The China Energy Investment has built underground reservoirs in the goafs of multiple mines in the Shendong mining area , which provides a reference for the construction of all-underground pumped storage reservoirs.