Today’s renewable energy news includes updates from Green Flexibility, ArcelorMittal, EDF, among others.
Green Flexibility Commissions 40MW Battery Storage System in Bavaria
Green Flexibility has commissioned a 40MW/80MWh battery energy storage system in Balzhausen, Bavaria, representing an investment of around €35 million. The facility is among the region’s largest battery storage projects and forms part of the innovative “Feed-In Socket” pilot initiative led by LEW Verteilnetz GmbH. The project is designed to integrate solar, wind and storage assets more efficiently into the grid, supporting a combined renewable capacity of 126MW while optimising transformer usage and reducing congestion. Green Flexibility said the system strengthens grid reliability by storing excess renewable electricity and supplying power during peak demand. The company plans to commission at least five additional battery systems in 2026, highlighting continued investment and innovation in Germany’s expanding energy storage sector.
ArcelorMittal and EDF Plan 25MW Battery Project in Bremen
ArcelorMittal and EDF power solutions Germany are planning a 25MW/50MWh battery energy storage system at ArcelorMittal’s steel production site in Bremen, Germany. Under a 10-year agreement, EDF will handle the design, installation, operation, and maintenance of the facility. The battery system will support the steel plant’s load management by reducing strain on the electricity grid during peak demand periods while improving operational flexibility. The storage asset will also be used in electricity markets to optimise energy procurement costs and generate additional revenue opportunities. The project highlights growing investment in industrial-scale energy storage and innovation in decarbonising heavy industry. It supports grid stability, enhances energy efficiency, and aligns with ArcelorMittal’s long-term target of achieving climate neutrality by 2050.
Iberdrola Expands Pumped Storage Capacity in Spain
Iberdrola has upgraded its Valdecañas pumped-storage hydropower plant in Cáceres, Spain, significantly increasing energy storage capacity on the Tagus River system. The improvements add 355MW of power capacity and 210GWh of storage, strengthening renewable energy integration and grid stability. The upgraded facility has already completed its first pumping operations and includes a hybrid 15MW/7.5MWh battery system, enhancing operational flexibility. The “gigabattery” links the Alcántara and Valdecañas reservoirs, enabling excess solar and wind power to be stored and dispatched during periods of high demand. The project highlights major investment and innovation in long-duration energy storage infrastructure. It supports Spain’s renewable expansion, improves electricity system resilience, and delivers long-term environmental and energy security benefits as renewable generation continues to grow across Europe.
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