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KAYTUS unveils prefabricated liquid-cooled AI data center scaling to 1GW

KAYTUS introduced a gigawatt-scale, fully prefabricated, containerized liquid-cooled data center architecture it calls an “AI Factory,” built around standardized modules for IT, power, and cooling. The system is designed to start at 3 MW and scale in blocks up to 1 GW, with KAYTUS offering single-vendor delivery across planning, integration, and operations.

The prefabrication model breaks the facility into three containerized units: an IT Cube, a Power Cube, and a Cooling Cube. KAYTUS puts the integration work in the factory, aiming to reduce on-site complexity and compress project schedules compared with conventional builds.

IT Cube: 3 MW base unit with liquid-cooled racks

In KAYTUS’ 3 MW base configuration, the IT Cube includes 18 liquid-cooled compute racks, 12 network racks, five storage racks, and five server management racks. The IT Cube uses a two-tier stacked container layout, with compute racks on the lower level and consolidated power and data cabling routed through the upper level. Hot and cold aisles are physically separated, and KAYTUS says full system integration is completed at the factory.

Each liquid-cooled rack is specified at 150 kW, with an upgrade path to 200–227 kW. The CDU is configured with 1+1 redundancy and provides 1,200 kW of cooling capacity per unit. KAYTUS lists primary-side supply/return temperatures of 35/45°C and secondary-side supply/return temperatures of 40/45°C. Secondary-side loops, flow-control valves, and leak detection are integrated at the factory, with valve control options including manual, remote electric control, or smart energy valve management.

Power Cube: 2,500 kVA PTU blocks and Tier III-level N+1 design target

The Power Cube design centers on a factory-prefabricated PTU (Power Transfer Unit) enclosure and a separate diesel generator enclosure. Each PTU is rated at 2,500 kVA and integrates a medium-voltage transformer, high- and low-voltage switchgear, high-frequency UPS systems, and automatic transfer switching between grid and generator sources.

KAYTUS describes the complete power system as designed to meet Uptime Institute Tier III-level N+1 availability requirements using a 2+1 redundant architecture. It also describes factory testing that includes loaded transfer switching and short-circuit testing, and a battery bridge that carries critical load while the generator starts during a grid outage.

Cooling Cube: 4,200 kW liquid loop plus 3,300 kW chilled-water plant

The Cooling Cube combines a high-temperature liquid-cooling source with a low-temperature air-cooled chiller plant, and includes closed-circuit cooling towers mounted on an upper platform. KAYTUS specifies 4,200 kW of liquid-cooling capacity at 35/45°C supply/return, and 3,300 kW of chilled-water capacity at 18/24°C supply/return. The module includes redundant pumps, water treatment, and pressure management systems.

A thermal buffer tank is specified for 10 minutes of backup cooling after a power event, and KAYTUS lists a 72-hour emergency water reserve intended to maintain cooling during a water supply interruption. The company says systems are pressure-tested and failover-validated at the factory prior to shipment.

For data center operators, the practical appeal is predictable repeatability: if KAYTUS can truly deliver factory-integrated IT, power, and cooling as a single packaged system, that changes the commissioning and integration burden compared with multi-vendor site builds. But the real test will be how these standardized blocks behave at scale, where fault isolation, spares strategy, and operational procedures often decide whether “modular” stays simple or becomes a patchwork.

KAYTUS says deployment timelines can be approximately 6–8 months, including about one month for design, three to five months for factory manufacturing and transport, and two months for on-site installation and commissioning. It also says a 3 MW unit can be brought online within one month after delivery.

Source: KAYTUS

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