Sermatec introduces its 835 kWh modular energy storage system, designed for scalable, reliable, and grid-ready applications, featuring intelligent management and enhanced safety.
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| Sermatec’s 835 kWh energy storage system provides flexible expansion, predictive diagnostics, and advanced thermal management, setting new standards for energy storage safety and performance. Image: Sermatec |
Shanghai, China — September 12, 2025:
Sermatec, a leader in energy storage technology, has launched an innovative 835 kWh modular energy storage system, designed to meet the growing demand for medium- and large-scale energy storage solutions. This cutting-edge system combines a 1P104S large-pack architecture with an ideal 835 kWh capacity, perfectly suited for applications across industries from large industrial parks to enterprise-wide networks.
One of the standout features of Sermatec’s energy storage solution is its flexibility. The system is designed for parallel expansion, allowing scalability up to 6.68 MWh, providing companies with the ability to increase capacity without unnecessary upfront investment. This makes it an ideal solution for a variety of applications where flexibility and future growth are key considerations.
Sermatec’s system is also grid-ready, compatible with multiple voltage levels and medium-voltage cabinets, making it adaptable to different infrastructure setups. It can be easily integrated into centralized cabins or inverter-booster cabins, ensuring maximum asset utilization and project scalability.
In addition to its robust design, the energy storage system features a plug-and-play installation process, significantly reducing deployment time. The system’s modular transport design weighs less than 8 tonnes, overcoming logistical challenges associated with oversized containerized solutions. This lightweight structure facilitates global transport by land or sea, enabling faster delivery and easier deployment.
Beyond hardware, the 835 kWh system includes intelligent management capabilities, such as predictive fault diagnosis, remote wireless operation, and over-the-air upgrades, allowing operators to manage their energy storage systems more efficiently. A three-layer security architecture ensures the integrity of the system’s data and operations.
Sermatec has also integrated a dynamic thermal management system to maintain cell temperature deviations within ≤ 2.5°C, which helps reduce auxiliary power consumption and extend the life of the system’s liquid cooling components by up to 30%. The system is designed for reliable capacity and improved economic performance, supporting flexible discharge times ranging from 2 to 4 hours, accommodating a wide variety of business models.
For customers looking to optimize energy management, the system offers an optional Sermatec Energy Management System (EMS). This platform supports a range of applications, including energy time shifting, frequency regulation, and peak shaving. In solar-storage hybrid projects, it also supports both DC and AC coupling, offering greater flexibility in design.
Sermatec’s commitment to safety is evident in every aspect of the energy storage system. It features a three-level fuse protection system, four-level management control, and a five-level safety framework. The system also includes three-level fire protection, which ensures rapid fire detection and suppression, while insulation materials provide fire resistance for over 2 hours, preventing heat spread within the cabinets.
Certified to meet international standards such as IEC62619, IEC63056, IEC62477, IEC61000, and UL9540A, the 835 kWh modular energy storage system sets a new benchmark for inherent safety and international compliance.
Designed to operate in extreme environments—from -30°C to 50°C and at altitudes up to 4,000 meters—the system is built to perform reliably in the most demanding conditions. Additionally, an optional C5 anti-corrosion coating ensures the system’s resilience in harsh climates.
With its scalability, efficiency, and advanced features, Sermatec’s new modular energy storage system is poised to play a crucial role in the future of renewable energy solutions worldwide, providing industries with a sustainable, cost-effective, and safe way to meet their energy storage needs.