Huawei’s 3D Data Center: A Vertical Blueprint for Dense AI Clusters

Huawei introduced its 3D Data Center at the 2026 AIDC Industry Development Conference in Wuhu, Anhui, as a reference architecture for very large AI clusters. Rather than spreading cooling, compute, electrical distribution and backup power across a conventional horizontal facility, the design stacks those functions vertically. Huawei positions it as a model for buildings supporting 100,000-plus-card Ascend supernode clusters. 3

The four-layer design

From the bottom up, the architecture consists of:

1. Cooling layer — the base level for the cooling system.
2. IT equipment layer — the compute floor, where the Wuhu site is reported to use Ascend 950-series equipment.
3. Power-distribution layer — electrical infrastructure above the IT floor.
4. Backup-power layer — lithium-battery modules placed independently on the roof; cooling towers are also located there at the Wuhu site. 2

The concept borrows from the separation of utility and production areas in chip factories. By decoupling and stacking the layers, Huawei aims to create short vertical routes for cooling and power instead of longer horizontal routes through a building. 1

What it is designed to achieve for high-density AI

The practical challenge is the infrastructure needed for AI racks whose power density has moved well beyond the low-kilowatt levels associated with older air-cooled server rooms. Huawei has described racks in the 100–200 kW range as part of the high-density AI context the design addresses. 17

In the Wuhu implementation, Huawei says the vertical layout reduces the distance between a power module and a rack from 17 meters to 5 meters and raises single-building IT power capacity from 76 MW to 168 MW. The company presents that capacity as a foundation for a “computing-power factory” built around a 100,000-card Ascend supernode cluster. 18

The intended benefits are:

• Shorter cooling and electrical paths. The cooling layer sits directly below the IT layer, while power is located above it.
• Domain separation. Cooling, IT and electrical systems are physically separated, allowing different temperature-control approaches for different equipment classes. 18
• POD-level isolation. Power and cooling can be organized into independently operating PODs, which Huawei says can limit a single fault to its affected area rather than allow a wider facility impact. 18
• Hardware refresh flexibility. Because the IT layer is decoupled from cooling and power infrastructure, Huawei says future compute equipment can be replaced without rebuilding the entire data-center architecture. The Wuhu site is currently reported to host Ascend 950-series products. 2

Why put batteries on the roof?

Huawei’s fourth layer places backup batteries on the roof instead of alongside the IT and electrical systems. At Wuhu, reports describe independently compartmentalized lithium-battery modules and cooling towers on the rooftop. 2

The design is intended to improve separation between backup power and the main IT spaces. Reporting on the site describes battery protections including separate compartments, explosion-protection measures, combustible-gas detection and directed pressure relief. 18 Those are design and implementation claims, not a substitute for long-term, independently published safety and operations results.

A shift from site construction to prefabrication

The other major part of Huawei’s pitch is construction speed. Instead of treating each data center primarily as a bespoke on-site build, the company is moving more electromechanical work into factory-built modules that can be assembled on site.

For the Wuhu project, Huawei reported more than 90% electromechanical prefabrication and said electromechanical delivery was reduced from about six months to three months. 2 Separate reporting said the full Wuhu project took nine months, with structural prefabrication allowing floors to be built in parallel; factory-integrated equipment included transformers, low-voltage switchgear and UPS systems. 22

These figures are specific project reports, not a guaranteed schedule for every location. Local grid connections, civil works, permitting, supply chains and operating requirements can all change a deployment timeline.

Design resources and planned locations

Alongside the architecture, Huawei released the 3D Data Center book and opened a 3D Data Center Overview Design Library. The library covers disciplines including architecture, structure, water supply and drainage, HVAC and power, plus strong- and weak-current systems. 23

Huawei Cloud says it has three core hubs in Gui’an, Guizhou; Horinger, Inner Mongolia; and Wuhu, Anhui, where 3D data centers are being built at scale. 27

The industry initiative behind the proposal

The announcement was accompanied by a Global Computing Consortium (GCC) initiative to develop a next-generation AIDC paradigm. Participating organizations include the China Electronics Standardization Institute, China Electronics Engineering Design Institute, Chindata, Huawei and other supply-chain partners. Its stated areas of work include defining metrics, developing reference architectures, benchmark validation and standards certification. 2

That framing matters: Huawei has presented the 3D design as a reference architecture, not as an already established universal standard. 3

What still needs independent proof

The Wuhu project demonstrates a real architectural implementation, but several claims need verification across operators, climates and vendor combinations before buyers should treat the model as drop-in infrastructure.

The key questions are whether independent testing can confirm:

• energy and thermal performance at sustained 100–200 kW-plus rack densities;
• the quoted capacity and delivery improvements;
• effectiveness of POD-level fault containment and rooftop battery safety measures;
• maintenance complexity and lifecycle economics;
• compatibility with non-Huawei accelerators, servers, networking, UPS equipment, cooling systems and management software.

The GCC initiative’s focus on benchmark validation and standards certification indicates that this work remains ahead. 2 For now, Huawei’s 3D Data Center is best understood as a high-density AI infrastructure blueprint with reported advantages from its Wuhu deployment—not yet a fully independently validated, multi-vendor standard.