Infineon and SolarEdge are teaming up to build a smarter, smaller, and vastly more efficient power backbone—starting with a solid-state transformer that could kill the clunky iron-core relics of the past.
The Silicon Carbide Shortcut
The heart of this collaboration is a modular 2–5 megawatt solid-state transformer (SST) building block. It marries Infineon’s silicon carbide (SiC) switching tech with SolarEdge’s DC-power expertise to hit over 99% efficiency. That’s a big deal: every percentage point saved in a hyperscale facility translates to millions in electricity costs and a smaller carbon footprint.
Instead of converting high-voltage AC from the grid down to usable DC in multiple lossy stages, the SST does it in one clean leap—directly from 13.8–34.5 kilovolts to 800–1500 volts DC. That eliminates tons of copper and iron, slashes weight and size, and speeds up deployment. Think of it as swapping a diesel generator for a Tesla battery pack.
Why 800V DC Matters
AI workloads are pushing data centers toward 800-volt DC architectures. Higher voltage means lower current, which means thinner cables and less resistive loss. But the real prize is end-to-end efficiency from the grid all the way to the GPU. SolarEdge has been playing in DC-coupled power for over 15 years; Infineon brings the SiC muscle to make that vision practical at scale.
“The AI revolution is redefining power infrastructure,” says SolarEdge CEO Shuki Nir. He’s not wrong. As demand surges, operators can’t just bolt on more transformers. They need a fundamental rethink—and this SST is the first serious step.
What This Means
This isn’t just a component deal. It’s a signal that the data-center industry is finally ditching legacy AC gear for a DC-native future. If the SST delivers on its promises, expect hyperscalers to start retrofitting entire campuses. The grid-to-GPU pipeline is about to get a lot leaner—and a lot greener.
