TESVOLT launched its residential battery stack, TESVOLT TAYTAN, which supports SMA and Kostal hybrid inverters
Its storage capacity can be increased to 250 kWh by connecting 4 battery units in parallel
This product is expected to be commercially available by the end of 2026
Leonard Fraise, Product Owner at TESVOLT AG, a Germany-based battery manufacturer, detailed the company’s latest showcase, TESVOLT TAYTAN, to the TaiyangNews team during Intersolar Europe 2026.
Unlike conventional ‘All-In-One’ storage systems that combine battery stacks and a hybrid inverter, TESVOLT TAYTAN mounts up to 10 modular batteries (6.25 kWh each) on top of one another. With a cumulative capacity of 62.5 kWh, it can be paired with the SMA Sunny Island X or the Kostal Plenticore series hybrid inverter to form a large residential ESS platform, said Fraise.
These batteries can use their full storage capacity with a depth-of-discharge (DoD) of up to 100%, with a guaranteed life of 15,000 cycles. At the end of life, it is designed to offer a state of health (SOH) of 70% at a 0.5C charging or discharging rate. Users can connect 4 battery units (62.5 kWh each) in parallel, taking the cumulative storage capacity to up to 250 kWh for long-duration backup. Built within an IP55-rated enclosure, this system is suitable for outdoor applications. It uses natural circulating air to cool the batteries during frequent cycles and has a rated operating temperature range of -17 to +50°C.
The communication between battery storage, third-party inverter, and energy management system (EMS) is established via an Internet of Things (IoT) gateway. It translates various industrial communication protocols to align with the external inverter’s built-in scopes. This device also collects field data and transmits it to cloud platforms for monitoring and after-sales services by the company’s partners, via Ethernet or Wi-Fi. Moreover, it facilitates real-time data sharing to the EMS and monitoring platform, enabling real-time visualization and monitoring by end users.
This product is scheduled to be commercially available by the end of 2026.
The company also showcased its TESVOLT FORTON series cabinet-based energy storage system (ESS) with 92 to 100 kWh storage capacity and a full-load power of 90 kW, noted Fraise. Its system capacity can be scaled up to 1.5 kW/1.475 kWh by connecting 16 battery units in parallel.
On the pre-sales side, the company offers engineering, planning, and battery dimensioning. It also offers digital tools to help model a project’s viability.
The company offers after-sales services through its local services team, added Fraise.
