German energy company Uniper has partnered with NGEN to construct a 50MW/100 megawatt hours (MWh) battery energy storage system (BESS) project in the state of North Rhine-Westphalia.

The new project, set to begin operation in 2025, will be constructed at the Heyden power plant site in Petershagen.

The planned BESS project will feature 26 energy storage packs, each comprising rechargeable lithium battery modules, integrated inverter modules, a thermal management system and an operational interface.

The technology is designed to store and convert energy, facilitating more efficient use of electricity generation plants.

Uniper new green power and gas chief operating officer Jan Taschenberger stated: “We are delighted to be realising this project with NGEN. Energy storage plays an important role in the development of the green growth business in Uniper’s strategy.

“By using cutting-edge technology and expertise to develop sustainable solutions, we will play a central role in shaping the future of energy in Germany.”

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Slovenia-based battery system provider NGEN will establish its first German office in Frankfurt as part of the collaboration.

NGEN Group CEO Roman Bernard stated: “We are very excited to partner with Uniper on the battery storage project in Petershagen and to open our first office in Germany.

“This strategic collaboration will enable us to drive innovation, accelerate the deployment of renewable energy and contribute to a more resilient and sustainable energy system in Germany.

“The project represents a significant step forward in our commitment to enhancing energy storage solutions and demonstrates our dedication to supporting Germany’s energy transition goals.”

In February 2024, Uniper revealed plans to expand its gas-fired power capacity by adding between 1 and 2GW, depending on the outcome of a German government tender.

The government is preparing to tender for an initial 10GW of new power capacity, with the requirement that these plants eventually transition to hydrogen fuel.

The earliest tenders are anticipated in 2024.