April 15, 2025

The European Investment Bank (EIB) has signed two green loans with Iberdrola totaling USD$122 million (€108 million)—a USD$56 million (€50 million) loan using own funds and a USD$65 million (€58 million) loan with funds from the Regional Resilience Fund (FRA). The operation aims to improve the pumping capacity of the Valdecañas hydroelectric complex, which encompasses the Torrejón and the Valdecañas power plants.

The complex will help to secure energy supply and create storage capacity enabling the integration and management of renewable energy. The Valdecañas plant will have a total installed capacity of 225 MW, a 15 MW hybrid battery and 7.5 MWh of stored energy.

Reversible pumping plants, such as those in the Valdecañas hydroelectric complex, make it possible to use and generate electricity quickly, allowing for better management of the consumption and demand curve, and stabilising the electricity grid. The upper reservoir – which feeds the plant – acts like a storage system that is charged with the water’s potential energy. Energy can then be stored when excess energy is generated from other non-dispatchable energy sources, and can subsequently be recovered when needed. It operates like a closed circuit between the upper and lower reservoir, which does not just consume water, but also reuses it. This system, which is independent of precipitation and water resources, has a long service life and can provide wide-reaching reinforcement to the electricity grid.

Together, the battery and hydroelectric units will make it possible to increase the added pumping capacity to a maximum of 313 MW, and the storage capacity of the Tajo system to 210 GWh. The works to improve pumping capacity will make use of the existing installations in the Valdecañas and Torrejón-Tajo reservoirs—without changes to the levels of operation—and the existing transport networks, thus reducing the impact on the environment.

Once up and running, the complex will help to reduce CO2 emissions. In addition, the improvement works will directly create 165 jobs and a further 500 indirectly, boosting skilled employment. The total investment will take place in a cohesion region, an area where the per capita income is below the EU average. In this way, the project will contribute to climate action and territorial, economic and social cohesion—two of the eight priorities set out in the Group’s Strategic Roadmap for the years 2024-2027.

Having received funding from the Regional Resilience Fund, the project is also in line with the objectives of Spain's Recovery, Transformation and Resilience Plan. The Regional Resilience Fund directs funding from the NextGenerationEU programme to boost investment in Spain autonomous communities, predominantly for environmental and social projects. The fund is led by the Ministry of Economy, Trade and Enterprise and is supported by the autonomous communities and cities and the Spanish Federation of Municipalities and Provinces (FEMP), with the EIB Group as a strategic management partner.