Sungrow Secures World's First German Inertia Market 'Passport'
Sungrow has achieved a global first by obtaining the German VDE FNN prototype certificate for its SC210HX series energy conversion systems. This allows for faster grid connection and integration into the European inertia market.
Munich, Germany – July 22, 2026 – Sungrow, a global supplier of PV inverters and energy storage systems, has marked a significant milestone in grid-forming technology. The company's SC210HX series energy conversion systems (PCS) have received the VDE FNN prototype certificate from TÜV Rheinland in Germany. This certification makes them the world's first energy storage PCS to successfully meet the complete set of German standards for medium and high-voltage grid connection, along with verified grid-forming capabilities.
This achievement enables Sungrow's PowerTitan energy storage systems, when equipped with the SC210HX PCS, to drastically reduce grid connection times and project acceptance risks. It also accelerates entry into Europe's burgeoning inertia market, substantially boosting the investment competitiveness and financing viability of energy storage projects.
The VDE FNN (German Federal Network Agency) framework establishes comprehensive requirements for integration into medium and high-voltage grids and is widely recognized by European grid operators, developers, and financial institutions as a critical benchmark for assessing compliance, reliability, and grid-support capabilities of energy storage projects.
Leveraging Sungrow's proprietary 'stem cell' grid-forming technology, the SC210HX PCS offer exceptional grid adaptability and stable support. The system can independently absorb or supply active and reactive power to meet grid demands across various scenarios, including frequency and voltage regulation, and backup power supply. In weak grids with high renewable penetration, the converter maintains voltage source characteristics and swiftly provides dynamic reactive current during grid faults.
Following a rigorous testing process, Sungrow has verified that its hardware reliability, control algorithms, and grid-forming performance fully comply with Germany's stringent mandatory grid standards. This certification officially recognizes Sungrow's technical leadership in advanced energy storage solutions and grid support.