Barcelona-based Submer, which submerges data center server racks in its proprietary coolant, raised a $55.5M Series C at a ~$500M post-money valuation

The race is on for better chips and data center capacity to handle AI workloads, but all that activity comes with a catch. Heavy processing power means heat — a lot of it — and that has massive implications, both for how well servers operate and the environment.
With traditional cooling methods…

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