An intelligent ecosystem for secure, profitable, and future-ready energy

Integrated hardware, software, and services that turn battery storage into powerful energy assets — for Large Residential, Commercial, Industrial, and Utility projects.

TESVOLT delivers integrated energy storage solutions for every scale of commercial and industrial use – from distributed sites to large battery parks. Our portfolio combines high-performance batteries, intelligent power electronics, and secure digital connectivity into one coherent system architecture that is reliable, scalable, and future-proof. Instead of isolated components, customers receive a fully orchestrated ecosystem designed for long lifetime, operational stability, and regulatory compliance.

The real value lies in what our systems make possible: lower energy costs, greater energy independence, and new revenue opportunities through grid services and energy trading. Powered by TESVOLT’s Energy Management and IoT platform, our solutions enable real-time transparency, automated optimization, and remote operation, so businesses and utilities can actively manage energy.

TESVOLT product ecosystem for energy management and trading

Solutions across all energy scales

Large Residential/ Small Commercial

from 20 kW

For larger residential buildings, craft businesses, and small commercial operations, a stable and intelligent approach to energy is what matters.

Commercial & Industrial (C&I)

from 150 kW

Robust and efficient storage solutions for companies that want to combine supply security with access to energy markets.

Industrial / Utility BESS

from 500 kW

Cabinet-scale format with a digital “brain” behind it — for operators who want not just to store energy, but actively market it.

Battery Parks / Hybrid power plants

from 2 MW

Large-scale energy infrastructure for grid operators and investors — scalable, durable, and economically designed for the energy world of tomorrow.
TESVOLT TAYTAN
Stackable and cyber-secure - with additional income
TESVOLT FORTON
The Outdoor Economic Miracle: Lucrative energy trading & high cycle stability thanks to high-temperature cells.
PowerCore G2
Real market power. Powered by TESVOLT Intelligence. 
TESVOLT TALLON
A large container storage system — a true economic marvel at scale.

System components for grid connection and control

TESVOLT Energy Controller Pro S – compliant grid integration in Germany

TEC Pro S – the key to standard-compliant integration of TESVOLT storage systems

  • Enables connection, control, and communication of the TESVOLT battery storage system with a superior (master) EZA controller.
  • Ensures VDE-AR-N-4110 -compliant grid integration (requires a compatible Master EZA controller).

TESVOLT FORTON is ready for grid integration

  • Connection to a Master EZA controller via the system interface adapter TESVOLT Energy Controller Pro S (available separately).
  • Recommended list of solution providers for Master EZA controllers and Modbus list for integration into Master EZA controllers available (on request).

TESVOLT Energy Controller Pro S – compliant grid integration in Germany

TEC Pro S – the key to standard-compliant integration of TESVOLT storage systems

  • Enables connection, control, and communication of the TESVOLT battery storage system with a superior (master) EZA controller.
  • Ensures VDE-AR-N-4110 -compliant grid integration (requires a compatible Master EZA controller).

TESVOLT FORTON is ready for grid integration

  • Connection to a Master EZA controller via the system interface adapter TESVOLT Energy Controller Pro S (available separately).
  • Recommended list of solution providers for Master EZA controllers and Modbus list for integration into Master EZA controllers available (on request).

TESVOLT Digital Products

TESVOLT’s digital products turn batteries into thinking, connected market players — from secure IoT connectivity and real-time monitoring to smart energy management and trading platforms that learn, optimise and act. Together they form a single digital brain that makes every system more transparent, more controllable and more economically alive.

TO OVERVIEW

The core principles behind our solutions

TESVOLT Partner Journey
Smart IoT Architecture
Quality
Security

From the first idea to daily operation — partners are supported at every step.

  • Plan: With the Project Planner and Product Configurator, projects can be quickly assessed, designed, and technically dimensioned in a sound way.
  • Build & Commission: Commissioning tools and targeted partner enablement structure the implementation and make it efficient. Step-by-step guidance reduces errors, saves time, and ensures a safe system start-up.
  • Operate: The Monitoring and Management Portal provides clear visibility into ongoing operations. Partners and operators can track performance, detect issues early, and continuously optimize systems.
  • Monetize: The Energy Trading Portal opens access to energy markets. Storage systems can be used individually or in aggregated portfolios to generate additional revenues and make flexibility economically usable.

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:

  • a certified quality management system according to ISO 9001:2015,
  • systematic testing and validation of components and systems,
  • standardized development and manufacturing processes,
  • careful selection and evaluation of our suppliers,
  • transparent documentation and connected data across the entire value chain.
  • Quality also remains an active process during operation.

We continuously learn from field data and customer experience and keep improving our products. To do this, we use:

  • monitoring and data-based analysis in live operation,
  • structured error and continuous improvement management,
  • an agile organization for rapid adjustments,
  • regular training for employees and partner installers,
  • close collaboration with customers and partners in planning, installation, and service.

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.

TESVOLT Partner Journey

From the first idea to daily operation — partners are supported at every step.

  • Plan: With the Project Planner and Product Configurator, projects can be quickly assessed, designed, and technically dimensioned in a sound way.
  • Build & Commission: Commissioning tools and targeted partner enablement structure the implementation and make it efficient. Step-by-step guidance reduces errors, saves time, and ensures a safe system start-up.
  • Operate: The Monitoring and Management Portal provides clear visibility into ongoing operations. Partners and operators can track performance, detect issues early, and continuously optimize systems.
  • Monetize: The Energy Trading Portal opens access to energy markets. Storage systems can be used individually or in aggregated portfolios to generate additional revenues and make flexibility economically usable.
Smart IoT Architecture

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

Quality is built into the entire TESVOLT product lifecycle.

This is supported by:

  • a certified quality management system according to ISO 9001:2015,
  • systematic testing and validation of components and systems,
  • standardized development and manufacturing processes,
  • careful selection and evaluation of our suppliers,
  • transparent documentation and connected data across the entire value chain.
  • Quality also remains an active process during operation.

We continuously learn from field data and customer experience and keep improving our products. To do this, we use:

  • monitoring and data-based analysis in live operation,
  • structured error and continuous improvement management,
  • an agile organization for rapid adjustments,
  • regular training for employees and partner installers,
  • close collaboration with customers and partners in planning, installation, and service.
Security

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.

All our services in one place: the TESVOLT Partner Portal

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.

Go to the Partner Portal