#Germany #Munich #Energy Storage #SINEXCEL #StellaON

SINEXCEL Launches Innovative StellaON 1250K/1575K Energy Storage Systems

At the recently held Intersolar Europe 2026, SINEXCEL, listed under stock number 300693.SZ, introduced its state-of-the-art energy storage systems, the StellaON 1250K and 1575K PCS. These systems are designed to enhance the storage capacity and reliability of energy storage solutions across Europe in response to increasing demand.

Meeting European Standards and Challenges

The StellaON series is notable for its integration of Infineon components, which enables the systems to meet European demands for environmental resistance, grid stability, and lifecycle economics. This adaptability is crucial for optimal energy value under varying conditions, making the systems versatile in challenging climates and power networks.

Designed to operate reliably in harsh conditions, StellaON systems can withstand extreme temperatures. With Infineon's EconoDUAL™3 modules, the StellaON 1250K/1575K maintains uninterrupted performance at temperatures up to 55°C, which is 10°C above the industry average. This feature mitigates performance drops of 15-20% typically experienced by competitors and reduces over-design costs by approximately 20%.

Furthermore, the systems boast an IP65-rated design, providing protection against dust and water ingress. This innovative construction ensures flawless operation in extreme weather, all while maintaining noise levels at just 65 dB, adhering to stringent European regulations for urban environments.

Advanced Grid Support Features

Recognizing the evolving requirements of Europe's grid, the StellaON systems come equipped with capabilities for grid-forming in PQ, VF, VSG, and SVG modes. This functionality allows them to support 1.5 times overload for up to 60 seconds, significantly more than the average industry specification of 1.2, and provide gigawatt-level grid-forming power.

Moreover, the systems can facilitate dark start operations and allow for parallel connections of four AC/DC units, ensuring enhanced scalability, redundancy, and strength for large installations.

Maximizing Efficiency

Efficiency is a key metric for evaluating energy storage systems, and the StellaON achieves peak efficiency at full load with an impressive 98.5%. With an additional efficiency boost of 0.6% in both directions, it substantially reduces the levelized cost of storage (LCOS). The modular design accommodates operational durations ranging from 1 to 8 hours, scaling from 2.5 MW twenty-foot stations to 12.5 MW forty-foot stations for medium voltage applications.

In terms of operation and maintenance, the innovative self-cleaning design is projected to lower operating expenses (OpEx) throughout its lifetime by 15%. The systems exhibit an average time between failures (MTBF) exceeding 300,000 hours, ensuring 99% uptime, while essential component swaps take less than one hour, with complete PCS replacement achievable in under two hours.

Market Readiness and Global Deployment

The global readiness of StellaON is illustrated by its successful grid connection in Vietnam in March 2026, where it proved reliable even under extreme heat and humidity. In the first half of 2026, StellaON secured orders totaling over 500 MW with more than 15 ongoing projects across Europe, the Asia-Pacific, and Africa.

The systems comply with grid regulations in Germany, Poland, the Netherlands, Belgium, and Romania, with certifications for Spain and the USA expected shortly.

Conclusion

Founded in 2007, SINEXCEL has positioned itself as a pioneer in energy storage, electric vehicle charging solutions, and power quality. With an impressive installed capacity of 17 GW for energy storage and a network of partnerships in the industry, SINEXCEL continues to drive advancements in energy independence and sustainability across the globe. As the demand for efficient energy solutions grows, innovations like the StellaON 1250K/1575K will play a crucial role in bridging the energy gap across Europe and beyond.