LEAG and Fluence to build the largest battery storage project in Europe with a capacity of 4 GWh

The 1 GW / 4 GWh battery energy storage system will be Fluence’s largest single storage project globally to date and will be powered by Fluence’s Smartstack™ energy storage platform

COTTBUS, Germany and BERLIN, Nov. 07, 2025 (GLOBE NEWSWIRE) -- LEAG Clean Power GmbH and Fluence Energy GmbH, a subsidiary of Fluence Energy, Inc. (NASDAQ: FLNC) (Fluence), a global market leader delivering intelligent energy storage systems, services, and asset optimization software, will build Europe’s largest battery energy storage system, a 1 GW / 4 GWH system in Jänschwalde, Germany, underlining their role as energy technology leaders in Europe. The GigaBattery Jänschwalde 1000 project will be powered by Smartstack™, Fluence’s advanced energy storage solution.

LEAG Clean Power is rethinking energy. As an innovative power producer, LEAG Clean Power combines photovoltaic and wind energy systems with flexible power plants and large-scale storage facilities. This combination of different power technologies, termed as GigawattFactory, is growing at energy sites in the Lusatian energy region and at other locations in Germany. As an essential part of the energy industry, battery storage systems are playing a decisive role in advancing the energy transition.

“With this project, we are igniting another growth engine for our GigawattFactory,” said Adi Roesch, CEO of the LEAG Group. “By constructing gigascale storage facilities, we are addressing one of the biggest challenges of the energy transition: the constant availability of energy regardless of the availability of renewable energies. The key to the energy system of the future lies in a combination of renewable energies, storage facilities that can be used as needed, and flexible power plants.”

“We are proud to partner on a project of this scale and importance and congratulate LEAG Clean Power on this milestone for the energy future of Germany and Europe,” said Julian Nebreda, President and CEO, Fluence. “This flagship project demonstrates that when expertise, vision, and courage come together, a major transformation is possible. Together, we can transform the energy system and thus the foundation of our economy and our everyday lives.”

This year, the German government reaffirmed the crucial role of energy storage in ensuring a secure, affordable, and sustainable power system. Together, LEAG and Fluence are applying cutting-edge technologies to strengthen system stability and better integrate renewable energy. The GigaBattery Jänschwalde 1000 system will be designed to deliver essential grid services, support energy trading, reinforce Germany’s energy security, and drive the energy transition forward at scale.

“The size of this project makes it something special," said Thomas Brandenburg, Managing Director of LEAG Clean Power GmbH. “The technical design as a four-hour storage facility helps to stabilize the grid and enables optimal utilization of the existing grid connection. We are looking forward to implementing GigaBattery Jänschwalde 1000 together with Fluence, an experienced technology partner.”

“As a company with deep roots in Germany, we are honored and proud that our technology will play a key role in the transformation of both the country and the region. With our proven expertise in delivering advanced battery storage systems and our strong German software, execution, and services team, Fluence is well positioned to support LEAG in realizing the GigaBattery Jänschwalde 1000. Together with our strong partner, we are shaping the future of energy in Lusatia, Germany, and Europe,” said Markus Meyer, Managing Director of Fluence Energy GmbH.

About Fluence

Fluence Energy, Inc. (Nasdaq: FLNC) is a global market leader delivering intelligent energy storage and optimization software for renewables and storage. Fluence’s solutions and operational services are helping to create a more resilient grid and unlock the full potential of renewable portfolios. With gigawatts of projects successfully contracted, deployed, and under management across nearly 50 markets, Fluence is transforming the way we power our world for a more sustainable future.

For more information, visit our website, or follow us on LinkedIn or X. To stay up to date on the latest industry insights, sign up for Fluence's Full Potential Blog.  

About LEAG Clean Power

LEAG Clean Power GmbH is part of the LEAG Group, Germany's second-largest electricity producer and one of the largest private employers in eastern Germany. LEAG Clean Power GmbH focuses its business activities on projects in the areas of battery storage and innovative power plants, thereby making a decisive contribution to the development of the LEAG GigawattFactory. With investments in the expansion of renewable energies, storage capacities, the construction of hydrogen-compatible power plants and energy generation from biomass, the LEAG Group is consistently driving forward its transformation from a conventional energy supplier to a future-oriented energy transition company.

For further information, please visit  LEAG – Energielösungen aus der Lausitz | LEAG.de | LEAG or follow us on LEAG | LinkedIn.

Cautionary Statement Regarding Forward-LookingStatements

The statements contained in this press release that are not historical facts are forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, Section 21E of the Securities Exchange Act of 1934, as amended, and the Private Securities Litigation Reform Act of 1995. These forward-looking statements include, without limitation, statements regarding the anticipated operational performance of these energy storage systems, including output and capacity, market position, expected impact of these projects on the German power grid, the European utility landscape, de-risking expectations, and other beliefs, assumptions, prospects, plans, and objectives of management. Such statements can be identified by the fact that they do not relate strictly to historical or current facts. When used in this press release, words such as "may," "possible," "will," "should," "expects," "plans," "anticipates," "could," "intends," "targets," "projects," "contemplates," "commits", "believes," "estimates," "predicts," "potential," or "continue," or the negative of these terms or other similar expressions and variations thereof and similar words and expressions are intended to identify such forward-looking statements, but the absence of these words does not mean that a statement is not forward-looking.

The forward-looking statements contained in this press release are based on our current expectations and beliefs concerning future developments, as well as a number of assumptions concerning future events, and their potential effects on our business. These forward-looking statements are not guarantees of performance, and there can be no assurance that future developments affecting our business will be those that we have anticipated. These forward-looking statements involve a number of risks, uncertainties (some of which are beyond our control) or other assumptions that may cause actual results or performance to be materially different from those expressed or implied by these forward-looking statements, which include, but are not limited to, severe weather events impacting the projects, changes to the regulatory environment in Germany and Europe, general economic conditions, the potential for political, social, or economic unrest, terrorism, hostilities or war, unforeseen circumstances outside of Fluence’s control which may cause the energy storage systems to not perform as anticipated, and such factors set forth under Item 1A."Risk Factors" in our Annual Report on Form 10-K for the fiscal year ended September 30, 2024, filed with the Securities and Exchange Commission ("SEC") on November 29, 2024, and in other filings we make with the SEC from time to time. New risks and uncertainties emerge from time to time and it is not possible for us to predict all such risk factors, nor can we assess the effect of all such risk factors on our business or the extent to which any factor or combination of factors may cause actual results to differ materially from those contained in any forward­-looking statements. Should one or more of these risks or uncertainties materialize, or should any of the assumptions prove incorrect, actual results may vary in material respects from those projected in these forward-looking statements. You are cautioned not to place undue reliance on any forward-looking statements made in this press release. Each forward-looking statement speaks only as of the date of the particular statement, and we undertake no obligation to publicly update or revise any forward-looking statements to reflect events or circumstances that occur, or which we become aware of, after the date hereof, except as otherwise may be required by law.

Media Contact
Elisabeth Giesemann
Senior Associate Policy and Communications, Fluence
Email: elisabeth.giesemann@fluenceenergy.com

Analyst Contact
Chris Shelton, Vice President of Investor Relations and Sustainability, Fluence
Email: investorrelations@fluenceenergy.com

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