OCP EMEA Summit Highlights: The Race to 1MW IT Loads per Rack
At the recent Open Compute Project Foundation (OCP) Summit in Dublin, one of the major announcements was Google''s unveiling of the 1 megawatt (MW) IT Rack. As AI continues to
Google says its Project Deschutes CDU can unlock 1 MW data centre racks with liquid cooling, and it will share the full design with the OCP later this year. At the 2025 OCP EMEA Summit yesterday, Google unveiled its fifth-generation liquid-cooling CDU for next-gen AI data centres. It looks like what a mad scientist would come up with.
Are we prepared for the 1 megawatt (MW) IT rack? By Google's reckoning, this is the future soon. The tech giant has introduced +/-400 VDC power delivery that can support up to 1 MW per rack at the recently concluded 2025 Open Compute Project (OCP) EMEA Summit.
While the power consumption of a typical datacenter rack might fall somewhere between 5 kW to about 30 kW, the explosion in the use of servers stuffed with power-hungry GPU accelerators has seen this figure rise to 100 kW or more, with Nvidia's DGX GB200 NVL72 system pushing 120 kW.
The new liquid-cooled version, first tested in September, could support up to 700kW. Capacities above 700kW might be possible through increased busbar depths and additional coldplates. Version 4 of the HPR rack will utilize 400V DC power and will aim to support rack densities up to 800kW with plans to expand to 1MW in the future.
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