
A major milestone in the development of the Enphase solid-state transformer. ⚡
We have successfully demonstrated the IQ Solid-State Transformer (IQ SST) converting 13.8 kV AC to 800 VDC while maintaining stable output through rapid load changes that simulate the demands of AI compute racks.
Performed at its research and development lab in Austin, Texas, the test system consisted of 132 power modules, with 44 connected in series on each of three phases, operating together as a single system. The system maintained a stable 800 VDC output through load steps simulating the fast-changing demands of AI compute racks.
💬 “Over the past 20 years, we've built and shipped nearly 90 million microinverters, gaining extensive experience in designing and manufacturing reliable power electronics,” said Raghu Belur, co-founder and CPO at Enphase.
“IQ SST brings that same approach to AI data centers, moving us closer to delivering power more efficiently to AI compute racks.”
Next up: testing at 34.5 kV in the coming weeks, with megawatt-scale demonstrations expected before the end of 2026 and customer pilots planned for 2027.
Read the full announcement: