Battery Storage Transforms Grid Design Worldwide

Global battery storage costs have plunged and policy changes in 2025 are reshaping grid design and deployment. Ember found utility-scale storage costs fell to $65/MWh and ENTSO-E and national programs propose rapid capacity growth—Europe may need ~200 GW by 2030—while the U.S. OBBBA law retained storage tax credits but added foreign-sourcing FEOC rules, pressuring supply chains and procurement timelines.