24 June 2025, MADRID — Global energy storage owner-operator BW ESS and Getxo-based energy storage developer Ibersun have signed a joint venture to develop, in its first phase, 2. 2GW of utility-scale battery energy storage system (BESS) projects across Spain.
What is energy storage in Spain?
It targets large-scale energy storage projects in Spain. It focuses on technologies like standalone battery energy storage systems (BESS), pumped hydro energy storage (PHES), and thermal energy storage. The program supports hybrid projects, which combine storage with renewable energy, such as solar or wind farms.
The European Commission has approved a new aid scheme that will allow Spain to deploy large-scale electricity storage, both in hybridisation with renewable energy facilities and stand-alone and thermal.
Spain has launched an ambitious €700 million (around $796 million) program to increase its energy storage capacity. This plan will add 2.5 to 3.5 gigawatts (GW) of storage. It includes pumped hydro, thermal energy storage, and battery systems.
Why should Spain invest in energy storage?
Investing in energy storage helps Spain meet its climate goals. This includes achieving carbon neutrality by 2050. Storing renewable energy instead of wasting it helps the country rely less on fossil fuels. This also cuts down greenhouse gas emissions. Pumped hydro, thermal storage, and battery systems are effective technologies.
La Moncloa. 17/03/2025. European Commission approves new 700 million aid scheme to boost energy storage in Spain The Ministry of Ecological Transition and Demographic Challenge will promote the large-scale deployment of this technology by co-financing investments of up to 85%.
Why does Spain need a stronger energy grid?
A stronger grid helps homes, businesses, and industries. It gives steady electricity and cuts down on interruptions. In 2023, renewable energy sources made up nearly one-quarter of Spain's final energy consumption, as seen below.