Utility-scale battery storage is used for grid stabilization and electricity trading.

Scale Energy, a leading German developer of industrial battery storage systems, is implementing a battery storage project with a capacity of 4 MWh together with the international viscose fiber specialist Cordenka at its Mühlhausen (Thuringia) site. The system will be used for grid services as well as electricity trading. Commissioning is planned for the fourth quarter of 2026.

Existing industrial infrastructure as a key to rapid implementation.

Grid connection approval from Stadtwerke Mühlhausen Netz GmbH has already been granted for the project. A key success factor is the use of existing site resources: Cordenka is providing available infrastructure and non-operational land at the site. This allows the project to be implemented significantly faster than comparable greenfield developments, where land must first be developed and new grid connections established.

Scale Energy consistently follows the approach of developing battery storage systems specifically where grid connections and industrial infrastructure already exist. This reduces development effort, accelerates permitting and implementation processes, and creates additional flexibility in the power system — precisely where it is most valuable for grid operation and the market.

“The project in Mühlhausen demonstrates how quickly battery storage can be realized when existing industrial infrastructure is used intelligently,” says Christoph Kößler, Managing Director of Scale Energy. “This creates additional flexibility for the power system in a short time — and thus a measurable contribution to grid stabilization and the integration of renewable energy.”

Grid services and electricity trading as an economically viable model
The battery storage system will be designed to balance fluctuations in the power grid and provide grid-supportive flexibility. In addition, marketing the storage capacity on the electricity market opens up economic potential — both through trading and through the provision of system-support services.

Grid services and electricity trading as an economically viable model‍

The battery storage system will be designed to balance fluctuations in the power grid and provide grid-supportive flexibility. In addition, marketing the storage capacity on the electricity market opens up economic potential — both through trading and through the provision of system-support services.

Contribution to sustainable site development‍

For Cordenka, the project aligns seamlessly with the company’s strategic sustainability focus, which includes a commitment to reducing greenhouse gas emissions, sourcing sustainable raw materials, and improving efficiency. Repurposing unused site resources for a grid-supportive storage project is a concrete lever to use existing infrastructure more efficiently while contributing to the energy transition.

“By making unused land and existing infrastructure available, we enable a particularly resource-efficient and effective implementation,” explains Dr. Christoph Partes, Sustainability & Compliance Manager at Cordenka. “The project complements our focus on energy efficiency and sustainable development at the Mühlhausen site and shows how industrial companies can pragmatically contribute to modernizing the energy system.”

With the battery storage project in Mühlhausen, Scale Energy and Cordenka are setting another example of how industrial companies and specialized energy developers can jointly realize solutions that are both economically sound and system-relevant for the energy transition.

About Scale Energy‍

Scale Energy is a German neo-energy company that develops battery storage projects for industrial and energy applications. The company specializes in seamlessly integrating battery energy storage systems into complex industrial infrastructures. Scale Energy combines project development, market integration, and energy market expertise to implement storage solutions that are both economically viable and grid-supportive. The goal is to establish decentralized battery storage as a core component of a stable, renewable energy supply.Website: www.scale-energy.eco

CORDENKA is the world’s leading manufacturer of rayon, a high-strength engineered fiber made from the bio-based raw material cellulose. The company operates three European sites with headquarters in Obernburg and produces, converts, and finishes rayon, which is primarily used as reinforcement material in high-performance tires, mechanical rubber goods, and composite materials. CORDENKA has a strong sustainability focus and, with its bio-based and biodegradable product line CORDENKA® Growth, offers agricultural solutions for greenhouse cultivation.
Website: www.cordenka.com