Colocation pricing by power density tier - Air-cooled vs liquid-cooled deployment costs

DERIVED ANALYSIS from existing repo records (colo-vantage-power-density-tiers, colo-vantage-liquid-to-rack-not-to-chip, pwr2-vantage-power-density). Colocation pricing is typically quoted per kW per month, with the rate increasing with power density tier. Tier 1 (8.3-20 kW/rack, air-cooled): $150-$300/kW/month. Tier 2 (20-50 kW/rack, high-density air or direct-to-chip liquid): $200-$400/kW/month. Tier 3 (50-100+ kW/rack, liquid cooling required): $300-$600/kW/month. These are approximate ranges based on industry knowledge, NOT verified from a primary source in this fetch. The key insight is that liquid cooling adds a 50-100% premium to colocation costs. For a GB200 NVL72 rack at 120kW, the colocation cost alone would be $36,000-$72,000/month at Tier 3 rates. This is a significant cost component that must be included in any on-prem or colo deployment cost model. The existing repo record (colo-vantage-liquid-to-rack-not-to-chip) notes that Vantage offers liquid-to-rack cooling, which is less expensive than direct-to-chip liquid cooling.