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EnBW Energie Baden-Württemberg AG (EnBW) has given the final go-ahead for a major battery energy storage system (BESS) at Philippsburg Energy Park, marking a significant step in Germany’s clean energy transition. The project, originally announced in August 2025, will feature 400 MW of power capacity and 800 MWh of storage, making it one of the largest battery facilities in the country.

The BESS will be built next to the TransnetBW converter station, a key component of the ULTRANET direct-current link that moves wind power from northern Germany to the southwest. The Philippsburg site, previously home to two nuclear units dismantled in 2017 and 2020, continues its transformation into a central clean energy hub.

Peter Heydecker, EnBW’s Chief Operating Officer for Sustainable Generation Infrastructure, highlighted the system’s role in strengthening grid flexibility. “Battery energy storage systems are indispensable for balancing the fluctuating supply of wind and solar power with electricity demand. They complement hydrogen-ready gas-fired power plants for longer deployments,” he said.

Construction is expected to start in summer 2026, with commissioning planned for the end of 2027. The facility will supply enough electricity to power roughly 100,000 homes, and will be fully financed through revenues from electricity sales and grid services, without government subsidies.

This project reinforces Germany’s push toward a renewable-based energy system, offering a scalable solution to manage intermittent wind and solar generation.

Source: review-energy.com