Cooling & efficiency
From precision air to single-phase immersion — the right thermal solution for every workload, at industry-leading PUE.
// Efficiency by design
Cooling is where efficiency is won or lost
Cooling can account for a large share of a data centre's energy overhead. We engineer it out — matching the thermal solution to each workload so you get maximum compute per kilowatt, and a lower carbon footprint as you scale.
- Hot/cold-aisle containment as standard on every hall
- Liquid cooling for the densest AI and HPC racks
- Real-time PUE monitoring and reporting for your ESG disclosures
// Systems catalog
Compare our cooling systems
Match density, efficiency and workload to the ideal cooling platform.
| System | Cooling type | Density | PUE | Capacity | Best for | |
|---|---|---|---|---|---|---|
| AirFlow N+1 | Precision air (CRAC/CRAH) | up to 10 kW/rack | 1.40 | Facility-wide | General compute & virtualization | |
| RearDoor HD | Rear-door heat exchanger | up to 40 kW/rack | 1.25 | Per-rack | High-density compute & GPU | |
| DirectChip DLC | Direct-to-chip liquid | >1000 W/chip | 1.15 | Per-rack / row | AI training & HPC clusters | |
| Immersion One | Single-phase immersion | >100 kW/tank | 1.03 | Per-tank | AI inference & extreme density |
// The spectrum
Three approaches, one facility
Precision air
Redundant, contained CRAC/CRAH cooling for standard enterprise and virtualized workloads up to ~10 kW per rack.
Liquid cooling
Rear-door heat exchangers and direct-to-chip cold plates carry heat away at the rack — ideal for dense GPU and HPC up to 40 kW+.
Immersion
Single-phase immersion tanks submerge hardware in dielectric fluid for extreme density and the lowest achievable PUE.
// Frequently asked
Cooling questions
Can you support liquid-cooled AI racks today?
Yes. We support rear-door heat exchangers and direct-to-chip cooling for high-TDP GPU and HPC racks, and single-phase immersion for the densest deployments — available in dedicated high-density zones.
What rack densities can you accommodate?
Standard racks up to ~10 kW on air, high-density racks to 40 kW+ with liquid cooling, and 100 kW+ per tank with immersion.
Do I need to change my hardware for liquid cooling?
Rear-door heat exchangers require no changes to your servers. Direct-to-chip and immersion need compatible hardware — our engineers will advise during design.
How do you report on efficiency?
We monitor PUE and energy in real time and can provide reporting to support your sustainability and ESG disclosures.
Deploy high-density workloads with confidence
Tell us your rack density and TDP — we'll recommend the right cooling design.
Talk to an engineer