News
Data center power allocation shifts from cooling to compute as liquid cooling adoption reduces chiller capex
Wednesday, January 21, 2026 at 10:08 AM
Data center power efficiency is expected to improve as cooling infrastructure power draw, currently estimated at 6-30%, is reduced and redirected to compute hardware. Mizuho reports a shift in capital expenditure from traditional chillers, costing $1-1.8M per MW, toward liquid cooling components like CDUs and manifolds, which can reduce chiller capex to $0-1M per MW.
Context
The AI infrastructure landscape is seeing a major pivot as data center power allocation shifts from thermal management to high-density compute. Mizuho highlights that cooling currently accounts for 6% to 30% of total facility power draw. By adopting liquid cooling, operators can reroute this energy to increase tokens per rack, significantly boosting the processing capacity of each facility. This transition allows for "token maximization," turning what was previously wasted thermal energy into direct AI output.
This technological shift is fundamentally altering capital expenditure profiles. Traditional air-cooled facilities require chiller investments of $1 million to $1.8 million per megawatt, representing roughly 40% to 60% of the cooling budget. In contrast, modern liquid-cooled sites reduce chiller costs to between $0 and $1 million per megawatt. Investment is instead moving toward CDUs, manifolds, and rack-level cooling hardware, allowing for a more cost-effective and energy-efficient scale-up of generative AI workloads.
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