StellaON Achieves TÜV SÜD Certification for German Grid Integration

On October 22, 2026, SINEXCEL, a Shenzhen-based company, announced receiving TÜV SÜD unit certification for its StellaON 1250K/1575K power conversion systems (PCS). This confirms their compliance with Germany's VDE-AR-N 4110, 4120, and 4130 standards. The certification applies to medium, high, and extra-high voltage grids, supporting the use of StellaON in utility-scale battery storage projects across various grid levels.

The TÜV SÜD certification examines converters' response during grid faults and their power control capabilities. The process integrates FGW TR3 testing and TR4 simulation model validation. These converters maintain efficiency up to 98.5% at full load and operate in temperatures up to 55°C without performance loss.

In addition to EU certification, StellaON has completed national certifications in Germany, Poland, and other markets. With ongoing certification in countries like the United States and Spain, SINEXCEL is gearing up for broader market access by the end of 2026.