Energy storage is experiencing a key moment in Spain and internationally. thanks to a linking new technological developments, regulatory support and the promotion of public and private aid. The consolidation of this sector It is at the heart of the strategy to achieve a massive integration of renewable energies and improve the resilience of the electrical grid in the face of increasing electrification and the variability of demand.
Recent legislative milestones, along with the introduction of new industrial solutions and cooperation between international actors, are accelerating the deployment of energy storage systems. Companies, regulatory bodies and industry associations agree that the flexibility generated by these systems is essential for the energy transition and security of supply.
A favorable and deployment-oriented regulatory framework
The recent publication of Royal Decree-Law 7/2025 in Spain marks a turning point. for storage, recognizing its public utility, facilitating administrative procedures and allowing it to access expropriation and easement procedures. This framework regulates access to the grid as both a generator and a consumer, enabling storage to participate in electricity markets, adjustment and balancing services on equal terms with the rest of the agents.
In addition, they have established Accelerated procedures for projects that include storage without modifying the environmental perimeter, the conditions for hybrid projects are made more flexible and a clear framework is introduced for the granting of public aid, especially those linked to ERDF funds and the European value chain.
Industrialization and corporate prominence in the expansion of storage
The national industry is positioning itself for the wave of public investment, as reflected in the presentation in Spain of the 5 MWh megabattery designed by Endurance Motive and the launch of eight large storage projects by the joint venture Ibersun and BW ESS, which provide an initial capacity of 2,2 GW spread across the country. These initiatives respond directly to the new regulatory framework already the requirements for aid, which prioritize the European production and local integration into the value chain.
On the other hand, international companies such as Desay Battery are strengthening their expansion by presenting solutions at specialized fairs. methodologies that integrate systems for residential, commercial, and industrial environments. Their products range from certified modular systems for large installations to batteries oriented to data centers, applying smart energy management platforms and advanced security technologies to meet the diverse needs of emerging markets, such as Southeast Asia.
Global trends and international cooperation
The pace of growth in installed storage capacity worldwide is remarkable., as demonstrated in Germany, where the battery fleet has grown by 150% in two years and now reaches 20 GWh of capacity. In that country, the residential component accounts for 80% of this growth, demonstrating the rise of decentralized solutions and the role of the consumer as an active actor in the energy transition.
International alliances and agreements, both for the joint implementation of large projects and for technology transfer, are essential. At the same time, there is a growing convergence of objectives between different markets, focusing on cost reduction, increased efficiency and integration of smart solutions that allow time arbitrage, flexibility and participation in the different electricity markets.
Outlook for companies and developers
Recent legislative changes and funds allocated to storage deployment open up opportunities for national and foreign companies, integrators, manufacturers and project promoters who want to be part of the new industrial wave. Companies that provide innovative solutions, meet the European value chain requirements and manage to position their technologies in the Spanish and European markets will have greater chances of accessing strategic aid and contracts.
This entire regulatory, industrial and business framework is managing to consolidate storage as centerpiece of the energy system, promoting the competitiveness, security of supply, renewable integration and industrialization both at national and European level. Storage is expected to be a key element in addressing the challenges of the energy transition. and to consolidate a more flexible, sustainable and resilient model.
