Principles of mine energy storage technology

Can a mine thermal energy storage system be used in abandoned mines?

Out of this reason, fundamental research in the eld of seasonal heat storage in abandoned mines has to be conducted for further technology develop-ment and establishment of large scale storage systems. e aim of this feasibility study is to conceptualize a mine thermal energy storage system for the hard coal mine Prosper-Haniel.

Do coal mines need energy storage technologies?

Various energy storage technologies and risks in coal mine are analyzed. A significant percentage of renewable energy is connected to the grid but of the time-space imbalance of renewable energy, that raises the need for energy storage technologies.

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.

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 underground space energy storage technology be used in abandoned coal mines?

The underground space resources of abandoned coal mines in China are quite abundant, and the research and development of underground space energy storage technology in coal mines have many benefits.

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.