Sifang Digital Energy Unveils SST for Smart, Reliable AI Power

SIFANG DIGITAL ENERGY unveiled the SST 1.0, a solid-state transformer designed for artificial intelligence data centers (AIDCs), during a launch event in Beijing on April 3, 2026. The product is intended to address the increasing power demands associated with the growth of AI computing infrastructure.

The event, held under the theme Smart, Reliable Power for AI, was attended by media, corporate representatives, and industry experts. During the opening remarks, SIFANG President Liu Zhichao addressed the relationship between computing power and the broader digital economy.

Computing power has become the core productive force of the digital economy, bringing new challenges to power supply architectures

Liu Zhichao, President of SIFANG

Liu stated that the company’s previous experience in microgrids and DC distribution provided the technical foundation necessary to develop power solutions for AIDCs, characterizing the SST 1.0 as a significant step in addressing current power supply challenges.

Technical Specifications and Capabilities

Wang Jikang, the Chief Marketing Officer of SIFANG DIGITAL ENERGY, described the SST 1.0 as a next-generation power solution. The system allows medium-voltage AC to directly power an 800V DC energy platform.

According to Wang, this architecture makes the supply of power to DC loads simpler, more efficient, more controllable, and grid-friendly. He confirmed that the SST 1.0 has already entered mass production and will be updated as market requirements evolve.

Company Background and Product Suite

Mei Hongming, the Chief Technology Officer of SIFANG DIGITAL ENERGY, noted that the company has nearly 20 years of experience in the field of power electronics. He identified several areas of innovation that contributed to the development of the new transformer, including:

• Flexible AC/DC transmission
• Energy storage and grid-forming
• Special power supplies
• Unit control
• Power quality

Mei explained that the company’s expertise in DC distribution allows it to provide a range of critical equipment for AIDC power scenarios. In addition to the SST 1.0, these solutions include multi-port SSTs, medium-voltage cascaded energy storage, and supercapacitor energy storage.