Underground energy storage device in Barcelona ​​Spain

For stakeholders in battery storage, thermal storage, and pumped hydro, this program offers not only financial backing but also long-term stability and political support. Spain has launched a €700 million energy storage program to support battery, thermal, and pumped hydro projects, aiming to deploy 2.5–3.5 GW of capacity.

Underground energy storage (UES) technology will provide a technical solution for renewable energy storage, as Spain also has a key geostrategic position and is home to leading companies, universities, and research organizations in underground works, electricity, hydrogen, electrolysis, geology, mining, and renewable energy.

Energy storage systems in Spain are a key element in the fight against climate change, as they help us to address the challenge of the energy transition. These systems make renewable energy production more flexible; and therefore help us to guarantee its integration into the Spanish electricity system.

El thermal storage Solar thermal power is another emerging technology in Spain, especially in the context of solar thermal power plants. This method allows heat to be stored in the form of thermal energy to be converted into electricity during the night or during cloudy periods.

The market energy storage in Spain, particularly in relation to the BESS systems (Battery Energy Storage Systems), is undergoing a dynamic and accelerated evolution. This transformation is driven by the growing need to integrate renewable energy sources into the electricity grid, improve supply stability and optimize energy use.

The UNDERGY Project (UNDERground enerGY) will research the technological basis for improving the competitiveness of seasonal renewable energy storage using green hydrogen. the underground storage of renewable energy using green H2. the creation of an efficient energy management system.