Global energy storage specialist BW ESS has entered into a joint venture with Spanish developer Ibersun to build an initial 2.2 GW of grid-scale battery energy storage systems (BESS) across Spain.

This first phase covers eight greenfield projects, each designed for a four-hour storage duration, and all are planned to reach ‘Ready-to-Build’ status within two years.

The partnership is a strategic response to Spain’s booming need for energy storage. Rapid expansion of solar and wind power—combined with limited interconnection to the rest of Europe—is increasing demand for reliable storage capacity. In fact, Spain’s energy plan targets 22.5 GW of battery storage by 2030, making this JV a key step toward that goal. Along with enhancing grid stability, these batteries will help prevent renewable energy from being curtailed during periods of excess supply.

BW ESS, as a global owner-operator of energy storage assets, brings its international experience and existing development pipeline (including projects in the UK, Australia, Italy, Germany, and Sweden) to the table. Meanwhile, Ibersun, based in the Basque Country and active in Spain since 2019, contributes strong local insight and a track record of solar and BESS development.

Isaac Garcia Moreno of BW ESS emphasized the urgent need for more storage to bolster Spain’s grid resilience, while Ibersun’s founders highlighted their commitment to sustainable, community-integrated project development.

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Source: https://www.nacleanenergy.com/energy-storage/bw-ess-and-ibersun-sign-joint-venture-to-develop-2-2gw-bess-in-spain