Spain, Campo Arañuelo, Cáceres: Iberdrola has inaugurated Spain’s largest energy storage battery at the Campo Arañuelo complex in Cáceres, marking a key step in its push to expand energy storage and support renewable integration.
The facility, located in the municipality of Belvís de Monroy, has a storage capacity of 120 MWh and a generation capacity of 58 MW. It is linked to the existing Campo Arañuelo I and II photovoltaic plants, allowing solar energy to be stored and used later when demand on the grid is higher.
The project includes two lithium iron phosphate (LFP) battery modules, each with around 60 MWh of capacity. This setup enables the solar plants to operate more flexibly, improving the management of renewable output and helping stabilise the electricity system.
According to Mario Ruiz-Tagle, CEO of Iberdrola España, the project supports the company’s wider strategy to accelerate electrification and provide firm, reliable power through storage. He described the initiative as a key step in advancing Spain’s energy transition.
The project has also received backing from Spain’s Institute for Energy Diversification and Saving (IDAE) under the PERTE ERHA programme, which supports innovative renewable energy storage projects.
Regional officials, including Mercedes Morán, highlighted the investment as a major boost for Extremadura, reinforcing its role as a growing energy hub combining generation, innovation, and system stability.
With this development, Iberdrola strengthens its leadership in energy storage in Spain, where it already operates a significant share of installed battery capacity.
Source: Iberdrola
