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Multi-cluster hall

Three liquid-cooled clusters under one roof.

A chilled-water hall drawn to a published reference topology, with the power and cooling plant built as modules and set on a prepared slab.

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Image pending

Aerial three-quarter view of a single-storey hall with factory-built power and cooling modules along one wall and a chiller plant outside it. Vehicles in the yard for scale. Flat site, daylight, no city skyline.

Render Campus 7.5, power and cooling modules against the hall.
Plan of a hall holding three cluster blocks with a service spine, and the chiller plant standing outside the wall.
Reference design Rev A · 2026-08-10
Electrical design envelope

7536 kW

Reference topology

Compute clusters

3

At 1152 accelerators each

Topology

Tier III

Chilled water, IEC

Rack cooling

Direct to chip

Liquid to liquid distribution

Definition

Campus 7.5

Campus 7.5 is a hall for three liquid-cooled compute clusters, drawn against a published Tier III chilled-water reference design. Power and cooling arrive as factory-built modules. The site provides the slab and the switchyard they land on, plus the fibre entrance.

System boundary

In scope

  • Factory-built power modules from the service entrance to the rack busbar
  • Chilled-water plant, distribution units, and the rack-side coolant loop
  • Compute and network racks, integrated and tested before shipment
  • Controls, metering, leak detection, and access control
  • Commissioning to a written acceptance script

Out of scope

  • The interconnection agreement and the utility service
  • Land, slab, switchyard, and site civils
  • Fibre to the property line
  • Permitting and local approvals
  • Generation, storage, or any behind-the-meter energy asset

System anatomy

Subsystems.

Power

Power

Utility service reaches the rack busbar through factory-built modules.

Design basis

  • Design envelope of 7536 kW
  • Tier III distribution topology
  • IEC reference standard
  • Modules arrive wired and tested

Redundancy

Concurrently maintainable. Any distribution path can be taken out of service with the load running.

Configuration options

Service voltage Concept
Set with the utility at interconnection. The module transformer is selected to match.
Standby generation Concept
Available where the load profile or the jurisdiction calls for it. Not part of the base design.
Cooling

Cooling

Heat moves from the chip into water and leaves through a high-temperature plant.

Design basis

  • Chilled-water facility loop
  • Liquid-to-liquid coolant distribution units
  • High-temperature chillers
  • Direct-to-chip cold plates at the rack

Redundancy

Plant and distribution are drawn to the same concurrently maintainable standard as the electrical system.

Configuration options

Heat rejection Concept
Air-cooled or evaporative, selected against the ambient design range and the water available at the site.
Heat recovery Concept
A high-temperature return makes the rejected heat usable where a neighbouring process wants it.
Compute

Compute

Three clusters arrive integrated and land on a prepared floor.

Design basis

  • Three clusters at 1152 accelerators each
  • Liquid-cooled racks
  • Integrated and tested before shipment

Redundancy

Compute is not redundant. The facility around it is.

Configuration options

Cluster count Concept
The hall is drawn for three. Fewer can be installed and the plant staged to match.

Specification · Rev A · 2026-08-10

Every value, with its source.

Reference design. A row marked open has no settled value, and the note says what decides it.

Envelope

Site

The design basis this configuration is drawn against.

Envelope specification
Attribute Value Unit Notes
Electrical design 7536 kW
Topology Tier III, chilled water
Standard IEC
Assembly Factory-built power and cooling modules Set on a site-provided slab
Footprint TBD Set once a candidate site is selected Open
Electrical design

7536 kW

Topology

Tier III, chilled water

Standard

IEC

Assembly

Factory-built power and cooling modules

Set on a site-provided slab

Footprint

TBD

Set once a candidate site is selected

Open

Compute

Compute
Compute specification
Attribute Value Unit Notes
Clusters 3 ea At 1152 accelerators each
Rack cooling Direct to chip
Rack density TBD kW Configuration dependent Open
Clusters

3 ea

At 1152 accelerators each

Rack cooling

Direct to chip

Rack density

TBD kW

Configuration dependent

Open

Thermal

Cooling
Thermal specification
Attribute Value Unit Notes
Coolant transfer Liquid to liquid distribution units
Heat rejection High-temperature chillers
Water use TBD Follows the heat-rejection option and the site Open
Coolant transfer

Liquid to liquid distribution units

Heat rejection

High-temperature chillers

Water use

TBD

Follows the heat-rejection option and the site

Open

Life safety

Controls
Life safety specification
Attribute Value Unit Notes
Suppression Clean agent, total flood Agent set by jurisdiction Open
Detection Environmental, leak detection, access control Scope set with the engineer of record Open
Suppression

Clean agent, total flood

Agent set by jurisdiction

Open

Detection

Environmental, leak detection, access control

Scope set with the engineer of record

Open

Engineering package

Diagrams.

Electrical one-line

Concept

Concept · drawing pending

Held until the electrical engineer of record has reviewed it.

What the drawing shows

Utility service enters a switchyard the site provides. From there a factory-built power module carries the load through switchgear and an uninterruptible supply to the rack busbar. Every distribution path is drawn so it can be taken out of service with the load running.

Cooling flow

Concept

Concept · drawing pending

Held until the mechanical engineer of record has reviewed it.

What the drawing shows

Cold plates on the processors carry heat into a rack loop. Coolant distribution units transfer that heat to a facility chilled-water loop, which a high-temperature chiller plant rejects to ambient.

All technical resources

Design basis

Assumptions.

The envelope is a published reference, not a Nawa measurement Reference design

Campus 7.5 is drawn against a published Tier III chilled-water reference design. That document sets the capacity and the topology, along with the cluster count.

Site works are outside the scope Concept

The interconnection, the land, the slab, the switchyard, and the fibre entrance are the site owner. Timing follows the interconnection queue in that jurisdiction.

Deployment

Scope split, then sequence.

The site provides

Land and pad
Level, drained, and engineered for the assembly weight.
Electrical service
Interconnection agreement, service entrance, and utility metering.
Network
Fibre to the pad, and the carrier arrangement behind it.
Permitting
Local approvals, inspections, and any jurisdictional review.
Heat rejection Configuration dependent
Needed for Module 20 only, where the plant sits outside the unit.
Transport route
Surveyed before order. The section is a permit load on most roads.

Nawa delivers

Factory-integrated units
Built, wired, plumbed, and tested before they leave the floor.
Power distribution Configuration dependent
From the service entrance to the rack busbar, with storage behind it.
Cooling Configuration dependent
Coolant distribution, in-row cooling, and the rejection plant where it is in scope.
Compute and network racks
Integrated to a fixed tray schedule and tested.
Controls and monitoring
Environmental, leak detection, access control, and metering.
Commissioning
Against a written acceptance script, with the results handed over.

Sequence

  1. Site assessment

    Joint

    Needs

    • Available or planned service
    • Location and jurisdiction
    • Network position
    • Target capacity

    Produces

    • Configuration recommendation
    • Site constraint list

    Duration not stated

  2. Configuration review

    Joint

    Needs

    • Site assessment
    • Rack and tray schedule
    • Ambient design range

    Produces

    • Fixed configuration
    • Scope split
    • Interface drawings

    Duration not stated

  3. Site readiness

    Customer

    Needs

    • Interface drawings
    • Permit set

    Produces

    • Pad poured and cured
    • Service energised to the entrance
    • Fibre terminated

    Duration not stated

  4. Factory acceptance

    Nawa

    Needs

    • Fixed configuration
    • Integrated racks

    Produces

    • Witnessed test results
    • Release for shipment

    Duration not stated

  5. Delivery and connection

    Joint

    Needs

    • Surveyed route and permits
    • Ready pad

    Produces

    • Units set and docked
    • Service, fibre, and coolant connected

    Duration not stated

  6. Commissioning and handoff

    Nawa

    Needs

    • Connected assembly
    • Acceptance script

    Produces

    • Commissioning record
    • Operating handover
    • As-built package

    Duration not stated

Next

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