en.Wedoany.com Reported - Data from Spain's grid operator (Red Eléctrica) shows that as of the current date in 2026, the country has connected 221 MW of battery storage to the grid, marking the first milestone after surpassing the 200 MW installed capacity threshold. These storage facilities encompass two types: battery packs hybridized with renewable energy plants and standalone battery systems.

Spain's grid operator began incorporating battery-related data into its statistics from the middle of last year, when the initial capacity was only 25 MW. It was not until November last year that the grid-connected battery capacity jumped to 153 MW. Since the beginning of this year, approximately 68 MW of new capacity has been added. Companies with connected projects include Iberdrola, Acciona, EDP, Solaria, Ignis, and Gnera, mostly hybrid battery storage facilities configured for solar plants, with Iberdrola having the most projects under construction.

Spain's electricity market is currently at a critical juncture, with solar plants facing pressure from zero or negative electricity prices during sunlight hours, making the configuration of battery storage an urgent necessity. According to industry experts' estimates, the country may install an additional 600 to 700 MW of battery capacity before the end of this year. Looking at the projects already in operation, there are no large-scale standalone projects: the largest is an Iberdrola project with a capacity of 25 MW, while the rest are mostly small-scale facilities under 5 MW.

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