Envision Deploys SST-Based 800V DC Power at Ulanqab AI Data Center

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Envision said on Nov. 2, 2026, that an integrated 800-volt direct-current (800V DC) power system is now powering live computing workloads at its Galaxy AI data center campus in Ulanqab, China, a deployment the company described in its announcement as the world’s first commercial use of such a system in a large-scale AI data center.

The announcement says the system delivers power end to end, from medium-voltage AC input to the server rack, and that it is already operating commercially ahead of wider industry adoption, providing a reference for AI data centers moving to 800V DC power infrastructure.

The newly deployed system integrates three hardware layers: solid-state transformers (SST), battery energy storage (BESS), and equipment that adjusts direct-current voltage for computing hardware. Coordinating them is Envision’s Dubhe Controller, which runs with the company’s Dubhe Energy Foundation Model and adjusts the transformers and batteries in real time so that power supply tracks computing demand, including abrupt swings in load.

According to Envision, the deployment is built around three capabilities: stable SST conversion directly from 10-kilovolt medium voltage to an 800V DC bus across operating conditions; battery storage that provides both second-scale power support and minute-scale backup; and millisecond-level coordination between SST and storage that absorbs GPU load fluctuations locally.