The innovative TESVOLT TAYTAN storage system stands for maximum security, smart efficiency, and uncompromising flexibility. Up to 15,000 charging cycles ensure long-lasting performance, while the modular design allows for precise scaling and expansion—from small commercial enterprises to high-performance charging infrastructure.
Benefit from automotive-grade digital security thanks to the Infineon cybersecurity chip, energy trading ready function, and modern over-the-air services. The advanced TESVOLT Defense Shield architecture and a proactive cyber defense approach ensure optimal protection for your data and systems.
Get the most out of your storage: With intelligent remote monitoring, easy installation, and guaranteed performance, you are well equipped for the future. TESVOLT TAYTAN turns energy trading, operational optimization, and backup into a business advantage – invest smartly, reap long-term benefits.
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!
Infineon Cybersecurity Chip from the Automotive Industry
Designed for the highest safety standards. Used in many safety-relevant control systems in the automotive industry, such as active driver assistance systems, autonomous driving, HV controls in the powertrain (BMS, OBC, DC/DC converters) and other safety-relevant assemblies, such as electric steering and braking systems.
From 2026: high additional revenues from energy trading from 50kW grid connection possible
TESVOLT ENERGY: enables this access by "pooling" smaller plants
Optimal: integrated product of battery storage and energy trading
Service: through qualified service/support team from Germany
Digital assistant: for digital commissioning with protocol function
Stackable System: for easy installation (no external wiring in the battery string, minimized number of components)
Installer training: for sale, installation and commissioning (not mandatory)
The TESVOLT TAYTAN is suitable for a wide range of requirements and offers a high degree of flexibility even after installation. Battery modules can be retrofitted to the stack within 24 months of commissioning. Additional stacks can be retrofitted in parallel connection at any time without restriction.
Suitable for private households to large commercial enterprises and can be installed indoors and outdoors
From 18.75 kWh to 62.5 kWh per stack
4 battery stacks can be connected in parallel to an inverter input without DC/DC combiner
Up to 250 kWh can be connected to an inverter input (max. number / size of stacks depending on the inverter)
Space-saving system, future-ready
The high cycle count of up to 15,000 charging and discharging cycles makes the system future-proof — and is particularly important in the context of energy trading readiness from around 2026, which will open up entirely new sources of revenue. With up to two cycles per day, the battery storage system offers maximum flexibility and is perfectly suited for profit-oriented energy management.
New: Guaranteed 35.8 MWh per module – regardless of C-rate and temperature conditions in the range of -17 °C to 50 °C and over the entire operating range. The system thus offers stable power performance under all conditions—space-saving, efficient, and reliable at all times.
Self-Consumption Optimisation
Use more energy from renewable sources and minimise feed-in.
Multi-Use
Simultaneous use of various applications (e.g. SCO & PS RLM, SCO & TOU, PS & TOU)
Physical Peak Shaving
Shave consumption peaks and minimise demand rate costs. The grid connection must be able to supply all loads.
RLM Peak Shaving
A smart way of reducing consumption peaks at 15-minute intervals and making full use of storage systems.
Time of Use
Time-dependent use of energy features and services.
Zero Feed-In
VDE FNN-certified fulfilment of grid requirements for not feeding electricity into the utility grid.
Generation Control
Consumption optimisation via active connection/disconnection of generators depending on the energy generated in grid operation.
Direct Marketer Interface
Increased revenue through direct marketing – flexibly place electricity storage on the market, save costs, and generate additional profit.
| Property | Specification | |
| Nominal Energy | 62.5 kWh* | |
| Nominal voltage | 832 V | |
| Nominal power battery | 62.5 kW | |
| Energy throughput | 35.8 MWh (100% DoD / SOH 65 % /> -170C < 500C/ 1C/ 1C) | |
| Expected cycles | 15,000 (100% DoD / SOH 65 % /> -170C < 500C/ 0,5C/ 0,5C) | |
| Optimal operating temperature | 15 °C ≤ T ≤ 30 °C | |
| Operating Temperature (Ambient Temperature) | -17 °C ≤ T ≤ 50 °C | |
| Height | ≤ 3,000 m | |
| Dimension | B 750 mm * T 468 mm * H 1900 mm** | |
| Weight | ≈ 650 kg** | |
| Housing protection class | IP55 | |
| Cooling method | Natural air cooling | |
| Max. number in parallel | 4 Strings | |
| Protection class / surge category | I / II | |
| Certification | IEC62619 / VDE AR 2510-50 / IEC 61010 | |
| Product name | Sunny Island X 30 (SI X 30) | Sunny Island X 50 (SI X 50) |
| Rated power (AC) | 30 kW | 50 kW |
| Max. Output Current | 45,6 A pro Phase | 75,5 A pro Phase |
| AC Voltage Rating / AC Voltage Range | 400 V / 187 V bis 528 V | |
| Rated mains frequency / mains frequency range | 50 Hz oder 60 Hz / 44 Hz bis 66 Hz | |
| Max. Efficiency / European Efficiency | 98,0 % / 97,6 % | 98,0 % / 97,2 % |
| Self-consumption (standby) | 25 W | |
| Dimensions ( H x W x D) | 837,3 x 772 x 443,8 mm | |
| Weight | 104 kg | |
| Noise emission, typical | 69 dB (A) | |
| Temperature range | -25 °C bis 60 °C (with derating from 45 °C) | |
| Protection | IP 65 / NEMA 4X | |
| Topology / Cooling Principle | 3-phased / active | |
| Guarantee | 5 + 5* years SMA warranty (*after successful SMA product registration) | |
| Self-consumption optimization, peak load shaving, multi-use, time of use, zero feed-in | ||
| Number of Devices Supported | 11 (System Manager Function) / 50 (Data Manager M) | |
*Mixing the number of battery modules when strings are connected in parallel is not permitted.
*Mixing the number of battery modules when strings are connected in parallel is not permitted.
by Cicero Design
German