Energy storage mining

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.

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.

Should energy storage be a key issue in mining?

The second place that energy storage emerged as a key issue was less expected: in their vision of “smart” and “sustainable” mines, mining companies see advanced energy storage as a key component of the so-called “future of mining” and their vision of the “mine of the future”.

Can abandoned mines be used for energy storage?

Closed mines can be used for the implementation of plants of energy generation with low environmental impact. This paper explores the use of abandoned mines for Underground Pumped Hydroelectric Energy Storage (UPHES), Compressed Air Energy Storage (CAES) plants and geothermal applications.

How can abandoned mine facilities be used to generate energy?

Finally, a CAES plant could be established, using the upper mine galleries for underground air storage; the fact that Lieres is a “dry mine” is ideal for this type of system. Thus, the abandoned mine facilities are efficiently used to generate both electrical and thermal renewable energy. Fig. 5.

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.