Uniper SE
Uniper SE
04/09/2026 | Press release | Distributed by Public on 04/09/2026 07:58
Groundbreaking ceremony for a 50-megawatt grid-connected battery storage facility in Wilhelmshaven
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Spatenstich
Uniper Spatenstichveranstaltung BESS-Anlage am 09.04.2026 in Wilhelmshaven (Uniper Kraftwerk ), Photo: Philip Eiben 2026
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Düsseldorf,
09
April
2026
|
15:57
Europe/Berlin
Groundbreaking ceremony for a 50-megawatt grid-connected battery storage facility in Wilhelmshaven
Summary
- Groundbreaking ceremony for a 50-MW battery storage facility (100 MWh) on the site of the former Uniper coal-fired power plant in Wilhelmshaven, organized by Uniper and NGEN
- Significant contribution to grid stability and the integration of renewable energy by balancing short-term fluctuations in wind and solar power
- Joint project to build a flexible and sustainable energy infrastructure in Germany
- Wilhelmshaven continues to develop as a key hub of the energy transition and a central location for renewable energy
- Planned commissioning of the battery storage system: Q4 2026
At noon today, April 9, Uniper and NGEN held the official groundbreaking ceremony for the construction of a 50-megawatt (100 MWh) battery storage facility on the site of the former Uniper power plant in Wilhelmshaven. With this facility, both companies are creating a key component for a flexible, reliable, and increasingly renewable electricity supply in Germany.
Representing Uniper at the symbolic groundbreaking ceremony were Holger Kreetz, COO, Jan Taschenberger, COO of New Green Power & Gas, and Project Manager Harald Poppinga. Representing NGEN, CEO and Co-Founder Roman Bernard and Mirjam Bernard, CMO, participated in the symbolic ceremony alongside Marco Scholz, Managing Director of NGEN Germany. State Premier Olaf Lies and Carsten Feist, Mayor of Wilhelmshaven, attended the event as guests of honor.
The battery energy storage system in Wilhelmshaven will balance out short-term fluctuations in the power grid caused by the feed-in of wind and solar energy in the future. In this way, the system will sustainably strengthen the integration of renewable energies as well as grid stability. According to current plans, the system is scheduled to go into operation in Q4 2026.
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We are currently being starkly reminded of just how important a clean - but above all independent - energy supply is. Battery storage systems are a fundamental component in ensuring a reliable supply at all times from the renewable energy we generate here. This investment by Uniper and NGEN therefore comes at just the right time, at a key energy hub for Germany in Wilhelmshaven. Battery storage systems such as these will help us to reduce the costs of the energy transition, as they allow electricity generated from renewable sources to be temporarily stored - rather than having to be curtailed and paid for at a high cost. This sends an important signal from Lower Saxony regarding the secure supply of clean, independent and sustainably cost-effective energy.
Olaf Lies, Minister-President of Lower Saxony
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With the battery storage facility in Wilhelmshaven, we are implementing a key component of a flexible and more resilient energy system. The project exemplifies the next phase of the energy transition: the shift toward an integrated, digitally controlled energy system in which different technologies work together intelligently. In Wilhelmshaven, we are shaping this transformation in a very concrete way right here on local level.
Holger Kreetz, COO of Uniper
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With the battery storage facility in Wilhelmshaven, we are making a targeted investment in the stability and sustainability of our energy system. The location offers ideal conditions for efficiently integrating renewable energy and making it available exactly when it is needed. Battery storage facilities like this one make an indispensable contribution to grid stability and make the energy transition more robust overall.
Jan Taschenberger, COO New Green Power & Gas of Uniper
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Energy storage is key to making renewable energy more usable, balancing out its volatility, and ensuring security of supply. With today's groundbreaking ceremony, NGEN and Uniper are sending a joint signal in support of innovation, climate protection, and a modern, resilient energy infrastructure in Germany.
Roman Bernard, CEO and Co-Founder NGEN
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The BESS project led by our partner Uniper at the Wilhelmshaven site represents a significant step for us in actively shaping the energy transition. It underlines our commitment to consistently pursuing NGEN's mission: to drive the transition to a clean, decentralized energy system in Germany alongside strong partners.
Marco Scholz, Managing Director NGEN Germany
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Through its digital engagement platform "Hallo Zukunft Uniper"Uniper offers interested citizens an opportunity to follow the project's progress and ask questions.
Your contacts for more information:
Uniper SE
Svenja Kaltheuner
Press Spokesperson
T +49 1515 1500408
[email protected]
NGEN
Stefanie Schmelzer
Marketing & Communications
T +49 173 6277612
[email protected]
About NGEN
NGEN Group is a vertically integrated technology leader and the "high-tech brain" of the decentralized energy grid. Headquartered in Slovenia and active in 11 countries, the group manages over 200 MWh of assets. By synthesizing proprietary software and hardware, NGEN provides the essential digital infrastructure to ensure grid stability and a carbon-neutral future.
ENERGY HUB Port of Wilhelmshaven
With over 40 national and international members, the ENERGY HUB Port of Wilhelmshaven is a hub of energy expertise focused on renewable energy, hydrogen, and carbon management. The site is set to become a central hub for energy security, supported by government, industry, and academia.
Uniper is a member of the ENERGY HUB. As such, Uniper's battery storage system in Wilhelmshaven is part of the transformation story that the consortium aims to write for the city on the North Sea coast.
About Uniper
Düsseldorf-based Uniper is a European energy company with global reach and operations in more than 40 countries. It has about 7,000 employees and plays a key role in ensuring a secure energy supply in Europe, particularly in its core markets of Germany, the United Kingdom, Sweden, and the Netherlands. Uniper's 18.5 gigawatts of power generating capacity make it a mainstay of reliable power production. Uniper is a leading gas trader and one of Northwestern Europe's most important LNG importers, and its broad procurement portfolio enhances supply security. Uniper's investments in renewables, hydrogen, and other low-carbon energy carriers propel the transformation of the energy system.
Uniper provides energy and services to about 1,000 municipalities and industrial companies in its home market, Germany. Uniper is also Germany's largest operator of gas storage facilities and hydropower plants.
Boilerplate
This press release may contain forward-looking statements based on current assumptions and forecasts made by Uniper SE Management and other information currently available to Uniper. Various known and unknown risks, uncertainties and other factors could lead to material differences between the actual future results, financial situation, development or performance of the company and the estimates given here. Uniper SE does not intend, and does not assume any liability whatsoever, to update these forward-looking statements or to modify them to conform with future events or developments.
Uniper SE published this content on April 09, 2026, and is solely responsible for the information contained herein. Distributed via Public Technologies (PUBT), unedited and unaltered, on April 09, 2026 at 13:59 UTC. If you believe the information included in the content is inaccurate or outdated and requires editing or removal, please contact us at [email protected]