Sungrow has announced that its SHT series residential hybrid inverter has been awarded VDE-AR-N 4105:2026 certification by TÜV Rheinland, becoming the first product to meet Germany’s latest low-voltage grid connection standard.
The updated standard, issued by the Association for Electrical, Electronic and Information Technologies (VDE), officially took effect on March 1 and, within three weeks of its implementation, Sungrow had already completed all required tests and obtained certification, demonstrating its strong technical readiness and execution capabilities.
As a key requirement for grid connection in Germany, the new standard is recognized for its stringent technical criteria and its significant influence on the European residential energy market. Compared to the previous version, the updated standard extends its applicable power range and introduces more stringent technical requirements, particularly for inverter operation under increasingly complex grid conditions.
During the certification process, TÜV Rheinland conducted comprehensive testing on the SHT series inverter. The product met all requirements in key areas, including PAV, E monitoring (feed-in limitation), reactive power supply and network and system protection.
The SHT series had already incorporated most of the new standard’s requirements before its official release, with only minor adjustments needed for specific parameters.
With the rapid growth of distributed energy resources across Europe and globally, grid systems are facing increasing pressure and operational complexity. The evolution places higher demands on inverters in terms of power regulation, dynamic response and grid support. Drawing on foresight into these trends, Sungrow had set elevated performance targets during the SHT series design phase, enabling swift certification under the new standard to achieve ‘first-mover’ advantage.
Dr. Philip Yu, Principal Engineer at the company’s Residential BU, commented: “To date, our SHT hybrid inverter series has achieved over1 GW of cumulative global shipments, serving nearly 80,000 households and businesses across Europe, Asia and other markets worldwide. Sungrow will continue to advance technological innovation in grid integration and elevate product capabilities with higher standards to meet increasingly stringent grid requirements, enabling more reliable and resilient energy systems.”