TESVOLT and Samsung to collaborate on cybersecure battery systems for public utilities

Lutherstadt Wittenberg/Germany, Seoul/South Korea, 3 June 2025 – TESVOLT, a leading European full-service provider of innovative energy storage solutions for public utilities and commerce, is collaborating with Samsung SDI to provide public utilities with a particularly secure, state-of-the-art battery container and comprehensive project management on site. Data servers in Germany and KRITIS-capable software are designed to effectively protect the new battery storage solution against cyber attacks. In addition, a world-first thermal runaway propagation prevention system ensures it’s a safe investment. The new SBB 1.5 battery container with 5.26 MWh storage capacity will be compatible with various European inverters and will be launched with exceptional performance and guarantee features. With the new storage solution, public utilities can also reliably provide grid services and participate in energy trading.

Cybersecurity is more important than ever for public utilities

“With larger battery systems in particular, there is a risk that they will simply be switched off from other countries – e.g. due to political conflicts. This makes it all the more important at the moment that our energy provider’s energy storage systems are as secure as possible against cyber attacks,” explains Daniel Hannemann, CEO and co-founder at TESVOLT. “Our intelligent battery control system is designed to support cybersecurity.” Storing system data on servers at locations in Germany also ensures greater protection against cyber attacks.

Local partner for low downtime

“We hear repeatedly from public utilities and EPCs that they feel stranded by Chinese manufacturers in the event of technical problems. But the longer the battery systems are down for, the greater the financial loss for the operator,” reports Sebastian Jänig, Key Account Manager for utilities at TESVOLT Projects. “In contrast, we provide public utilities with everything from a single source: a particularly high-performance large-scale storage system and our team of experts for large-scale projects, which not only builds the battery parks but also monitors them down to cell level, carries out maintenance and is on site to help the public utilities in the event of any problems.” This, together with the specially developed TESVOLT Energy Controller Pro plant control system and integrated EZA controller, means battery parks can be run profitably and with very low downtime.

Making large-scale storage systems more secure and more economical

“Samsung has by far the most experience with large storage system projects on the market. This is also evident in the battery storage systems: they really suit the needs of the system operators,” continues Jänig. “As an example, Samsung is offering a unique solution to prevent battery fires. Its EDI system, short for Enhanced Direct Injection System, is an active anti-propagation system that detects overheating at the cell level and stops it automatically by injecting a cooling agent into the affected battery module.” Samsung also uses long-lasting and high-performance NCA battery cells. Very quiet cooling units result in a low noise level of only 65 decibels (dBA).

“Supplying an outstanding storage system is no longer enough these days. In order to achieve good profitability over the entire lifespan, it is important that large storage systems have the lowest possible downtime,” reports Dirk Kaisers, ESS Director at Samsung SDI. With its intelligent EZA controller, TESVOLT looks deep into the storage systems, right down to the cell level and manages them in a way that is profitable. That ensures that the large storage systems are more secure and more economical than most others.

Exceptional guarantees

The new SBB 1.5 battery container will be launched on the market with a guarantee of up to 20 years and a flexible performance guarantee. The round-trip efficiency is guaranteed to be higher than 95%, and the annual availability guarantee is at least 97%. 

“Project lead times are usually around one year. The SBB 1.5 can therefore be ordered immediately, with delivery expected in the second quarter of next year,” explains Hannemann.

About TESVOLT

TESVOLT AG is a leading European full-service provider of innovative energy storage system solutions for commerce and industry. We are empowering companies with free, decentralised energy use and profitable, data secure electricity trading.

Our department TESVOLT Projects is a full-service provider and handles every step from project planning to the construction and operation of large-scale storage systems. With in-depth storage system expertise and experience in municipal projects, the expert Public Utilities team is on hand to support you on site.

The TESVOLT group includes the subsidiary TESVOLT Energy GmbH, which enables profitable energy trading for commerce and industry, and the joint venture TESVOLT OCEAN GmbH, which provides maritime shipping companies with high-performance battery storage solutions for challenging conditions at sea.

www.tesvolt-projects.com/en/

About Samsung SDI

From its inception in 1970 in South Korea, Samsung SDI has emerged as a global powerhouse in comprehensive rechargeable battery and material solutions. Leveraging its cutting-edge super-gap technology and advanced materials, the company develops and produces batteries for electric vehicles, energy storage systems, and IT devices as well as electronic materials used in semiconductors and displays.

https://www.samsungsdi.com/ 

Press contact

Vera Neuhäuser

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Email: vera.neuhaeuser@sunbeam-communications.com