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[TECHNOLOGY] · China, United States · 4 sources

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AI data center infrastructure faces power and interconnect challenges

The rapid expansion of AI computing is driving significant shifts in data center infrastructure, specifically regarding power distribution and interconnect technologies. As GPU-intensive platforms increase power requirements to several kilowatts per server, traditional 12V architectures face efficiency and thermal challenges. Engineers are increasingly adopting 48V distribution to reduce current, minimize voltage drops, and manage heat more effectively.

To meet the massive electricity demands of hyperscalers, companies are looking toward diverse energy solutions. While utility companies like Constellation Energy provide large-scale nuclear power, manufacturers like Bloom Energy are seeing high demand for on-site, behind-the-meter solutions such as solid-oxide fuel cells, which can be deployed much faster than traditional grid upgrades.

Beyond power, interconnect technology has emerged as a critical bottleneck. In large-scale distributed training, network communication can account for 30% to 50% of total time, meaning significant portions of expensive GPU compute power are often left idling while waiting for data. As clusters scale from thousands to hundreds of thousands of cards, the demand for high-bandwidth, low-latency interconnects—utilizing protocols like NVLink, PCIe, and CXL—is driving a massive market for specialized interconnect chips designed to manage congestion and data flow at the hardware level.

Entities

AI data centers · Bloom Energy · Constellation Energy · Huawei · Marvell · Nvidia