In detail
- Coolant is pumped at 45°C into racks and returns at 55°C, enabling passive radiator heat rejection without evaporative cooling in favorable climates.
- Nvidia claims the closed‑loop system can achieve up to 100% reduction in on‑site water use in some locations.
- Outside water use (electricity generation, chip manufacturing) can double or triple total water footprint, meaning Nvidia’s system addresses roughly 25–33% of total water consumption.
Why it matters
The tech is a meaningful facility‑level improvement, but buyers and sustainability teams must account for upstream emissions and water use to evaluate true environmental impact.
For you When evaluating data‑center vendors, require full lifecycle water and energy metrics (including power generation and chip supply chain) rather than facility‑only claims.