TESVOLT combines high-performance battery storage, intelligent energy management, and digital services into holistic energy systems for commercial businesses, industry, municipal utilities, and agriculture.
As a driver of the energy transition, we enable companies to use renewable energy freely, decentrally, and profitably — for us, this means: Free to go green.
With real-time transparency, automated optimization, and cybersecurity, energy becomes actively controllable — and an additional source of revenue.
TESVOLT delivers premium battery storage systems, battery management systems, system components for grid connection and IoT connectivity, energy management systems, and software solutions — from planning and commissioning to revenue optimization.
The subsidiaries of TESVOLT AG work closely together to support your success:
Profitability is a central value promise of TESVOLT. Our integrated storage solutions enable economically optimized use cases — from sustainably reducing energy costs through self-consumption optimization or peak shaving, to intelligent energy management and revenue generation through profitable energy trading.
By strategically monetizing flexibility, energy infrastructure becomes an active value driver with predictable revenues and faster return on investment.
More than 6,000 projects around the world prove their performance every day. Together, we are driving the energy transition forward and enabling the decentralized use and commercialization of energy even for systems starting from 50 kW.
This experience is also reflected in our own battery management system, a powerful energy management system, and our trading software.
TESVOLT is the market leader in Germany in the segment of commercial battery storage systems in the capacity range from 30 kWh to 1 MWh.
With a clear focus on applications in commerce, industry, and municipal projects, TESVOLT has significantly shaped this market and established economically viable energy storage solutions at an early stage.
Our systems and solutions are developed in our Gigafactory in Lutherstadt Wittenberg.
As a TESVOLT partner, you will find all information about our products and offers in the Partner Portal. If you have any questions about this product or are looking for an installer in your area - we are here for you!
The smart TESVOLT IoT architecture connects storage systems, inverters, measurement devices, and the TESVOLT Energy Manager via the TESVOLT IoT Gateway into a single, centrally controlled overall system. The gateway standardizes communication, consolidates data streams, and establishes a secure, bidirectional connection to the cloud. This makes all assets centrally visible, remotely controllable, and seamlessly integrated into monitoring, operations, and energy markets.
Built on this architecture, the system enables automated control, real-time transparency, and continuous optimization of plant operations. Data from field devices flows in a structured way into portals and trading platforms, allowing decisions to be made faster, more precisely, and more economically. The IoT layer thus forms the digital foundation for reliable operation, intelligent orchestration, and future-proof scalability.
Quality is built into the entire TESVOLT product lifecycle.
This is supported by:
We continuously learn from field data and customer experience and keep improving our products. To do this, we use:
TESVOLT sets a high standard for safety and follows a multi-layered approach that combines electrical reliability with functional safety in its energy storage systems. Most battery modules and systems are tested and certified by TÜV Rheinland , confirming their electrical safety through comprehensive assessments and making them among the safest storage solutions on the market. These TÜV certificates demonstrate that, in addition to electrical safety, the mechanical and functional characteristics of the systems are subject to rigorous testing — from short-circuit and overcurrent protection to robust enclosure design and intelligent system monitoring.
In addition to these physical and electrical safety measures, TESVOLT plans to pursue ISO 27001 certification during 2026 — the international standard for information security management systems — in order to systematically address digital risks and secure related processes.
The smart TESVOLT IoT architecture connects storage systems, inverters, measurement devices, and the TESVOLT Energy Manager via the TESVOLT IoT Gateway into a single, centrally controlled overall system. The gateway standardizes communication, consolidates data streams, and establishes a secure, bidirectional connection to the cloud. This makes all assets centrally visible, remotely controllable, and seamlessly integrated into monitoring, operations, and energy markets.
Built on this architecture, the system enables automated control, real-time transparency, and continuous optimization of plant operations. Data from field devices flows in a structured way into portals and trading platforms, allowing decisions to be made faster, more precisely, and more economically. The IoT layer thus forms the digital foundation for reliable operation, intelligent orchestration, and future-proof scalability.
Quality is built into the entire TESVOLT product lifecycle.
This is supported by:
We continuously learn from field data and customer experience and keep improving our products. To do this, we use:
TESVOLT sets a high standard for safety and follows a multi-layered approach that combines electrical reliability with functional safety in its energy storage systems. Most battery modules and systems are tested and certified by TÜV Rheinland , confirming their electrical safety through comprehensive assessments and making them among the safest storage solutions on the market. These TÜV certificates demonstrate that, in addition to electrical safety, the mechanical and functional characteristics of the systems are subject to rigorous testing — from short-circuit and overcurrent protection to robust enclosure design and intelligent system monitoring.
In addition to these physical and electrical safety measures, TESVOLT plans to pursue ISO 27001 certification during 2026 — the international standard for information security management systems — in order to systematically address digital risks and secure related processes.
From the initial idea to daily operation:
Our Partner Portal gives you access to all our services, digitalised and centralised on one platform. From contacting your sales representative, to accessing the TESVOLT Academy, to our comprehensive product configurator and quotation generator. 100% customised and personalised.
One-off registration to unlock and benefit from our easy-to-use package.
by Cicero Design
German