Over 25 years of mechanical and electrical programme management, including delivery for CoreWeave, Digital Realty, Google, Microsoft and AWS, I have watched rack densities rise gradually. The current step change is different in kind. It changes what determines a facility's long-term value.

The trajectory

Blackwell-generation NVL72 racks already draw on the order of 120 kW. Industry analysis of NVIDIA's roadmap places the Vera Rubin NVL144 platform at around 120 to 130 kW per rack, compatible with existing rack infrastructure, followed by Rubin Ultra on the Kyber platform at around 600 kW, with power and cooling in a dedicated sidecar. NVIDIA is preparing the industry for racks of 1 MW and beyond.

A facility commissioned in 2027 will host at least two further hardware generations over its lease. Headroom is no longer an engineering preference; it is a value driver.

Cooling

Direct-to-chip liquid cooling is now the baseline for AI halls, with air handling for residual heat only. The facility implications are a secondary fluid network to every rack position, coolant distribution sized for future rather than current density, heat rejection designed for higher water temperatures, and floor loading for heavier racks.

Higher water temperatures carry a second benefit: they make waste heat more useful, which matters under regimes such as Germany's Energy Efficiency Act, which requires new data centres to reach a PUE of 1.2 and to reuse a rising share of their waste heat.

Power distribution

Delivering hundreds of kilowatts to a rack with traditional low-voltage distribution requires large volumes of copper and conversion equipment. The industry is moving towards 800-volt DC architectures, designed to support racks from around 100 kW to over 1 MW on a common backbone with fewer conversion steps. Electrical rooms, busways and conversion space designed today should accommodate that path.

Commissioning discipline

At these densities, the cost of a commissioning defect rises sharply. Our programmes run under ISO 9001, ISO 14001 and ISO 45001 accredited management systems, with integrated systems testing as a formal gate before handover.

Headroom and residual value

For owners and their capital partners, the conclusion is direct. A facility designed to the current generation alone risks functional obsolescence within a lease term. A facility with headroom in cooling, power and structure retains its ability to be re-let to the next generation of tenant. Qore's design basis therefore includes direct-to-chip liquid cooling as standard, heat rejection and electrical capacity sized well above 100 kW per rack, flexibility for higher-voltage distribution and heat recovery from day one.

Sources

  1. NVIDIA Vera Rubin: 600-kilowatt racks, Introl, 2026
  2. NVIDIA prepares data center industry for 1MW racks and 800 volt DC power architectures, DatacenterDynamics
  3. EnEfG im Rechenzentrum: Was Betreiber jetzt wissen müssen, TÜV Rheinland Consulting

Figures are as reported by the sources above at the time of writing. This article is for general information only and does not constitute an offer, solicitation or investment, legal or tax advice.

Joe McCaffrey
Joe McCaffrey

Chief Development Officer, Qore Infrastructure Partners. Profile