Gui’an Midea Cloud

As data centers become the backbone of digital infrastructure and smart city development, improving energy efficiency has become a critical priority.

Against the backdrop of global carbon neutrality, the Gui’an Midea Cloud Project is a high-standard data center designed to support large-scale computing demand and long-term digital transformation.

Scale: Over 10,000 planned racks within 10 years; Phase I covers 15,000 m² with 4 data center buildings.

Standardization: Each building is designed to house 1,200 racks (8kW), supporting over 70,000 servers, among which Building B houses 1,626 racks (1,590 air-cooled + 36 liquid-cooled) with a total IT load of 15.7 MW.

Goal: A committed PUE < 1.2.

Climate and Geographic Advantages of Gui’an

Gui’an New Area stands out as a strategic location for data center development due to its natural and infrastructural strengths.

• Mild climate with an average annual temperature of around 15°C, ideal for utilizing natural cooling
• Clean air and open terrain, suitable for large-scale infrastructure development
• Strong power supply as part of a major national energy transmission hub
• Policy support as a core zone of China’s national big data pilot region

Challenges

To meet strict national green standards, the project faced high-performance cooling and energy-efficiency mandates.

• Stringent PUE Mandate: Must achieve and maintain PUE < 1.2 to meet local green guidelines

• Reliability Demands: Requires 24/7 cooling continuity even during power transitions

• Logistics Complexity: Massive equipment transport requires high-speed, heavy-duty logistics within the facility

MBT’s Integrated Solution

To meet evolving efficiency and reliability requirements, MBT delivered integrated mechanical and electrical solutions across different development phases.

Building A: Climate-Driven Efficiency Foundation

• Direct Free Cooling (AHU): Utilizes Direct Air Handling Units (AHU) with no heat exchange loss, maximizing the use of natural air.
• High-Efficiency Chiller Plant: 50% supplementary cooling provided by Midea inverter direct-drive centrifugal chillers and magnetic-bearing centrifugal chiller (Max COP up to 13.18).
• Dual Cooling for Support Areas: Room-level fluorine pump precision air conditioning combined with fresh air systems ensures energy-efficient and reliable cooling for power distribution rooms and battery areas.
• Intelligent Logistics: LINVOL passenger elevators with MECS smart control and heavy-duty freight elevators (160kW power, 30% energy saving).
• Power Integration: Full-lifecycle support for UPS, lithium batteries, and integrated power cabinets.

Building B: High-Density & Hybrid Cooling Upgrade

• Dual-Source Evaporative Cooling AHU: 350kW units (90,000 m³/h) with dual-coil switching design; distributed cooling architecture reduces failure radius and improves annual efficiency by >5%.
• Hybrid & Natural Cooling Modes: Automatic switching between water-coil natural cooling and compressor-assisted hybrid cooling; fluorine-side supplementary cooling range 30%–100%.
• Air + Liquid Cooling Deployment: Support Areas adopt air-cooled, room-level integrated refrigerant systems to ensure stable operation. Dedicated liquid-cooling zones apply cold-plate liquid cooling with CDU precision control to support ultra-high-density racks (up to 54kW per cabinet).

Building a Sustainable Future

The Gui’an Midea Cloud project demonstrates that large-scale computing and low-carbon efficiency can go hand in hand.

This project reflects MBT’s “Smart in One” approach, integrating HVAC, elevators, and power systems into a unified infrastructure platform. Beyond meeting national PUE requirements, MBT is committed to maintaining PUE < 1.2 for five consecutive years, reinforcing its long-term focus on green, integrated data center development.