China deploys 'world's first' 800-volt DC power system for massive AI data center

Envision Energy says that it has completed the world’s first commercial data center deployment of an integrated 800-volt DC power system. It has been testing the Dubhe Controller, supported by its Dubhe Energy Foundation Model since August this year at its Galaxy AI data center in Ulanqab, Inner Mongolia, China. Touted as offering simpler, and more efficient power architecture, Envision’s system will also support higher computing density, says a press release. The Galaxy campus will scale to 3GW capacity according to current plans, and eventually “support up to one million AI accelerators.”

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Currently, data centers rely on several power-conversion stages to achieve a usable supply from the grid. Envision’s Dubhe tech converts power directly from 10kV medium-voltage AC to an 800V DC bus to boost efficiency …