Sungrow Achieves Milestone with World’s First German Inertia Market Passport

Sungrow's Revolutionary Achievement in Energy Storage Technology

On July 22, 2026, Sungrow, a leading global provider of photovoltaic inverters and energy storage systems, reached a groundbreaking milestone in energy technology. The company has successfully acquired the world's first 'passport' for the German inertia market. This was made possible through the prototype certification VDE FNN, issued by TÜV Rheinland Germany, marking a significant advancement in grid-forming technology.

Sungrow's SC210HX series power conversion systems (PCS) have become the first energy storage systems globally to surpass the complete set of German grid connection standards for medium and high voltage. This certification, developed by VDE FNN—an organization dedicated to setting operational technology standards for the German electrical grid—lays out comprehensive requirements for seamless integration into medium and high voltage networks.

The VDE FNN certification is not just a technical achievement; it’s widely recognized by network operators, developers, and financial institutions across Europe. It serves as a critical benchmark for assessing compliance, reliability, and network support capacity of energy storage projects.

Sungrow's innovative grid-forming technology, developed through sophisticated algorithms and state-of-the-art hardware, provides exceptional adaptability to the electrical grid, ensuring stable support. The SC210HX PCS can independently absorb or supply both active and reactive power according to network demands, catering to various scenarios including frequency and voltage regulation, as well as backup power supply needs. In grids with a high penetration of renewable energies, the converter maintains voltage source characteristics and can quickly provide dynamic reactive current during network faults.

Moreover, the SC210HX allows for the establishment of isolated electrical grids without relying on external synchronization, enabling black starts and standalone operations. This feature is essential for effectively addressing connectivity issues in remote energy storage plants and isolated projects throughout Europe.

Following a rigorous testing process established by VDE FNN, Sungrow has confirmed that its hardware reliability, proprietary control algorithms, and network-forming performance meet Germany’s strictest mandatory network standards. This certification not only validates Sungrow's technical leadership in advanced energy storage solutions but also translates into tangible commercial value for project developers.

As European market standards grow increasingly stringent, the TÜV Rheinland VDE certification stands as a key indicator for investment institutions and credit agencies assessing project compliance and equipment reliability. This recognition allows developers to expedite network connection timelines, minimize delays during project acceptance phases, and adhere to the latest European regulations governing inertia-based energy storage.

Furthermore, the certification enhances the credibility, financial viability, asset value, and funding prospects for energy storage projects. By leveraging its comprehensive portfolio of VDE-compliant grid-forming energy storage solutions, Sungrow aims to expand its expertise in Europe’s energy transition, continuing to deliver safer, more compatible, and high-performance energy storage solutions to clients around the globe.

In conclusion, Sungrow’s achievement in securing the world’s first German inertia market passport not only showcases its commitment to innovation but also positions the company as a pivotal player in shaping the future of energy storage technology. With this milestone, Sungrow is set to significantly influence the energy landscape, facilitating faster connectivity and enhancing the overall reliability of energy networks in Europe and beyond.