Infineon partners with SolarEdge on SST for AI data center power
SolarEdge Technologies and Infineon Technologies have announced a collaboration to develop AI data center power tech based on a next-generation high-efficiency solid-state transformer (SST) platform. The modular 2–5 MW system will enable direct medium-voltage AC to 800–1500 V DC conversion with efficiencies above 99%, aimed at powering the growing wave of AI and hyperscale data centers.
For eeNews Europe readers, this development highlights a growing shift toward DC-based, high-efficiency power architectures in data centers — a sector that increasingly overlaps with advanced power electronics and semiconductor design.
Targeting high-efficiency DC infrastructure
The collaboration brings together SolarEdge’s expertise in DC architecture and control topologies with Infineon’s high-performance silicon carbide (SiC) power devices. The resulting SST reduces conversion losses, size, and weight compared to transformer-plus-rectifier systems, and it also lowers the carbon footprint and simplifies deployment.
Additionally, the companies say the SST under development will support direct conversion from medium-voltage grid input (13.8–34.5 kV) to 800–1500 V DC distribution, matching emerging rack-level DC bus standards in AI computing infrastructure.
“The AI revolution is redefining power infrastructure,” said Shuki Nir, CEO of SolarEdge. “It is essential that the data center industry is equipped with solutions that deliver higher levels of efficiency and reliability. SolarEdge’s deep expertise in DC architecture uniquely positions us to lead this transformation. Collaborating with Infineon brings world-class semiconductor innovation to our efforts to build smarter, more efficient energy systems for the AI era.”
SiC technology drives conversion efficiency
For Infineon, the partnership represents an opportunity to expand its semiconductor footprint in hyperscale applications as data center operators search for ways to manage soaring energy use, cooling load, and utility grid strain. Consequently, more efficient conversion becomes critical to operational cost control.
“Collaborations like this are key to enabling the next generation of 800 Volt DC data center power systems and further driving decarbonization,” said Andreas Urschitz, Chief Marketing Officer at Infineon Technologies. “With high-performance SiC technology from Infineon, SolarEdge’s proven capabilities in power management and system optimization are enhanced, creating a strong foundation for the efficient, scalable, and reliable infrastructure demanded by AI-driven data centers.”
Preparing for the next wave of AI compute growth
AI training clusters and GPU-dense server racks require far more power per square meter than traditional cloud infrastructure. As a result, operators are seeking simplified power conversion paths, reduced voltage-conversion stages, and architectures that minimize losses from grid feed to processor core.
By combining distributed DC power systems with wide-bandgap semiconductors — including Si, SiC, and GaN — both companies aim to offer scalable building blocks for future data center growth.
SolarEdge and Infineon are advancing the joint SST platform now and will outline deployment partners and commercialization timing at a later stage.
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