Why should we store energy in mines?

Anna Engman, Co-Founder and CMO: “Storing energy in mines is a brilliant idea. The environmental impact of the mine has already taken place and with mine storage, the mine is given a new and sustainable purpose. We use water, which is the cleanest means of storage, and the most obvious force which is gravity.

What is a mine storage & how does it work?

This is where solutions such as demand flexibility and short-term energy storage comes in. A mine storage can be used both for grid-scale and short-term storage, thereby addressing both the production/consumption mismatch and the stability of the grid. In other words: mine storages can be the key that enables the transition to green energy.

Can repurposed underground mines store energy?

Repurposed underground mines could store enough energy to power “the entire earth” for a day, new research suggests. During good weather conditions, wind and solar often generate more power than a grid can use. So where can we store this excess energy?

Can abandoned mines be used to store energy?

Using water and gravity to store energy is one of the most mature and widespread technologies for energy storage available today. In fact, more than 90 % of the current grid-supporting energy storage is based on water and gravity. Using abandoned mines has several benefits on different levels.

What makes mine storage a suitable solution?

Our solution is always designed based on how revenue will be generated. Mine Storage is a suitable solution for both bulk storage and ancillary services. For each mine storage plant, the operational model is developed to optimise the revenue based upon the conditions of the local market.

Can an abandoned mine be turned into a mine storage?

Turning an abandoned mine into a mine storage turns it from a liability into a circular asset. Given the compelling business case, the high round trip efficiency and the long lifespan of a mine storage, the levelized cost of energy storage (LCOS) is very competitive.