Regulatory Agility Needed to Accelerate Battery Storage Integration in Spain
The energy storage sector in Spain is at a pivotal point, marked by increased investor interest, technological advancements, and supportive European regulations. These factors have positioned batteries as a critical element for strengthening the national electrical system and enabling greater renewable energy integration.
However, the sector faces significant delays due to bureaucratic sluggishness and the lack of detailed normative guidelines. Industry leaders emphasize the need for regulatory agility, legal stability, and economic mechanisms that can expedite the deployment of battery projects throughout the country.
During the first panel of the third Energy Storage Forum organized by El Periodico de la Energia, representatives from leading energy companies agreed on the urgency to improve regulatory processes. Daniel Fernandez Alonso from Engie highlighted that recent legislative approvals, such as Royal Decree-Law 7/2025, have fostered a positive outlook. He specifically pointed out the importance of demand access, storage connection improvements, and capacity mechanisms as essential to ensuring project financial stability.
Fernandez also noted promising signals from Brussels suggesting a potential capacity auction before the year's end, further incentivizing sector growth. Nonetheless, he cautioned that many measures are pending practical implementation and called for quicker administrative procedures and regulatory frameworks to avoid delays.
From the developers' perspective, Lourdes Llana of RIC Energy acknowledged regulatory progress but warned that administrative clarity remains a challenge. She emphasized the need for institutional backing to combat rising local opposition and stressed that misconceptions about storage technology continue to hinder project development. Llana highlighted difficulties in developing hybrid projects and the regulatory gaps surrounding auxiliary services and grid connection procedures.
Maria Perez, representing Naturgy, reinforced that energy storage is vital for the Spanish grid's future resilience. She emphasized that batteries are subject to market volatility, reliant on multiple ancillary and balancing services, which complicates project viability. Perez underlined that declining battery costs and the utilization of existing renewable infrastructure have improved economic prospects, but warned that storage should not be viewed purely as a financial product.
Instead, batteries should serve as tools for risk management and grid stabilization. Acciona Energy's Marta Fernandez also advocated for leveraging existing renewable assets to optimize network use and cut investment costs. She highlighted the strategic importance of long-duration hydraulic pumping, despite it receiving less attention compared to battery storage.
Fernandez called for greater coordination among authorities and faster regional and local processing, emphasizing the need for urgent activity. Venancio Javier Rodriguez of Endesa pointed out that storage facilities should be located where they add real value rather than where grid access is available. He criticized the current development approach as being driven by network limitations and urged for smarter planning based on territorial, demand, and efficiency criteria.
Rodriguez also warned that unadjusted flexible access models could cause future problems with tariffs and connection conditions. He stressed the importance of unlocking currently blocked network capacity to facilitate strategic storage projects.
Despite differing viewpoints, the forum conveyed a unified message: Spain has the technological capacity, financial capital, and business interest to lead European energy storage. Yet, urgent regulatory development and reduction of administrative uncertainty are essential to prevent project delays and position batteries as a cornerstone of the future Spanish energy system.