Vattenfall Awards 1 GWh Brunsbüttel Battery Storage Project to Fluence
Key Highlights
- ➤254 MW, over 1,000 MWh Brunsbüttel battery project awarded to Fluence
- ➤Vattenfall’s largest battery project is scheduled to operate by end-2028
- ➤Fluence will provide turnkey delivery and long-term service support
- ➤Project will nearly double Vattenfall’s existing battery storage capacity
- ➤Germany added 6.6 GWh of battery storage in 2025
Expert Statements
Claus Wattendrup, Head of Solar & Batteries, Vattenfall
“Projects like this battery storage facility play an important role in strengthening the resilience of the energy system and enabling the continued integration of renewable power generation. Together with Fluence as our long-term partner, we are creating a flexible asset that can respond to changing electricity market needs for many years to come. The project will further strengthen our portfolio of flexibility solutions and support the transition away from fossil fuels”
Julian Jansen, VP & Managing Director, Fluence Germany
“Our long-standing relationship with Vattenfall now spans eight projects across three European countries, reflecting our shared vision for a more flexible energy system. Having delivered more than 20 battery energy storage projects in Germany, Fluence is proud to be a leader in scaling battery storage as critical energy infrastructure in the country”
BERLIN, Oct. 14, 2026 (GLOBE NEWSWIRE) -- Vattenfall and Fluence Energy, Inc. ("Fluence") (NASDAQ: FLNC), a global market leader delivering intelligent energy storage systems, services, and asset optimization software, have signed an agreement for the delivery of the planned battery storage facility in Brunsbüttel, as well as long-term service support. With an output of 254 MW and a storage capacity of over 1,000 MWh, the Brunsbüttel project, which is planned to be built at the site of the nuclear power plant that is currently being decommissioned, is expected to be among the largest battery energy storage projects in Germany and represents Vattenfall’s largest battery project to date. The project is scheduled to become operational by the end of 2028.
The 4-hour storage facility will utilize Fluence’s Gridstack(™) Pro 5000 platform, a large-scale battery storage solution including battery systems, power conversion equipment, and an energy management system designed to support grid resilience, renewable energy integration, and reliable system performance. Fluence will deliver the project on a turnkey basis, including engineering, procurement, construction, commissioning, and long-term service support, helping ensure the facility operates at high performance throughout its entire lifetime.
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