Sungrow launches 3 MW solid-state transformer

Sungrow has launched EnerNeo, a self-developed commercial solid-state transformer (SST) designed for artificial intelligence data center power supply applications.

The company unveiled the product at an AIDC product event in Hefei, China, positioning EnerNeo as a power supply solution for next-generation AI computing infrastructure. The launch marks Sungrow’s entry into a power equipment segment that is gaining importance as AI data centers require higher rack power densities and more compact electrical architectures.

EnerNeo is designed to convert 10 kV to 13.8 kV medium-voltage AC directly into 800 V DC output. The voltage range is intended to support deployment in major power markets across Asia and North America. The standard unit has a rated power capacity of 3 MW, with a minimum power block of 1.5 MW and configurable system options of 3 MW and 4.5 MW.

Sungrow said EnerNeo achieves a conversion efficiency of 98.5% and a power density of 312 kW/m². According to the company, the system requires between one-third and one-fifth of the space used by conventional transformer-based power supply configurations, depending on project design.

The product is aimed at simplifying power conversion chains in AI data centers. Conventional facilities typically rely on multiple conversion stages, including medium-voltage AC transformation, low-voltage AC distribution, uninterruptible power supply (UPS) systems, rectification and DC distribution to server racks. EnerNeo is designed to replace several of these stages with a direct medium-voltage AC-to-800 V DC architecture.

Sungrow said the approach can reduce conversion losses, copper consumption and equipment footprint in high-density computing environments. The system incorporates a medium- and low-voltage separated architecture, intelligent module rotation, integrated vacuum insulation and digital twin monitoring. These features are intended to improve operational reliability and enable real-time system optimization.

The company said EnerNeo can achieve 99.999% system availability. Its modular design allows capacity expansion in line with phased data center construction, including new facilities, retrofits and future expansion projects.

During the launch event, Sungrow signed strategic cooperation and framework procurement agreements with HEC Technology and ZDATA. The agreement with HEC Technology covers a planned capacity of 30 MW, with deliveries scheduled in batches from 2026 to 2027.

The agreement with ZDATA covers 100 MW. A demonstration project is expected to begin by the end of 2026, with deliveries planned for 2027 and 2028 depending on end-customer demand.

Sungrow said AI data centers will be the first major application for EnerNeo. The company also plans to expand SST technology into charging infrastructure, energy storage, solar, wind, hydrogen and grid applications between 2027 and 2030.