The computing hub of North China's core region
Chindata’s north China site is adjacent to the Beijing–Tianjin digital economy cluster. Leveraging an ultra-low-latency network advantage of only 2 milliseconds to Beijing and stable regional power-grid resources, the campus serves as an ideal base to meet the high-density computing demands of AI, autonomous driving, and quantum communications. The campus is large in scale, with multiple high-specification datacenter buildings already operational or under construction, totaling nearly 500 MW of IT capacity—enough to accommodate hundreds of thousands of high-performance servers. Its plan is to become a leading hyperscale computing hub in the Asia-Pacific region.

As a leading operator of hyperscale computing-power infrastructure solutions in China, Chindata focuses on the planning, investment, design, construction, and operation of hyperscale data centers, providing clients with full-stack solutions that integrate computing and power management in a green and efficient manner. Based on this comprehensive service system, Chindata was commissioned by the well-known Chinese life-services technology platform Meituan (whose businesses cover food delivery, autonomous delivery, travel platforms, fresh-grocery e-commerce, and others) to build a dedicated computing-power center for the platform, which Meituan agreed to lease on a long-term basis. As Meituan's business entered a critical period of AI transformation, its demand for computing power grew explosively, posing a significant challenge to the existing power-supply architecture.

Power supply challenges arising from the rapid expansion of Meituan’s AI business
Meituan has more than 700 million annual transacting users and over 11 million active merchants, and it requires the dispatching of 60 million delivery orders per day. Its self-developed large-scale AI model has been widely applied in contexts such as intelligent customer service and business-user operations assistants. Consequently, when leasing space at the Chindata Industrial Campus, Meituan advanced three core requirements for the power-supply system.

First, high stability: Meituan sought to ensure the AI scheduling system operate continuously 24/7 without interruption to prevent any power outages from affecting service continuity and user experience. Second, with its requirement for high energy efficiency due to electricity costs generated by massive computing power, Meituan had to reduce energy consumption through optimization of power-delivery technologies to meet sustainable development goals. Finally, high flexibility is required because AI GPU loads fluctuate dramatically and Meituan’s business scale is continually expanding with the power-delivery system needing to support multiple voltage-level outputs and rapid, flexible adjustments to avoid resource waste. Confronting the pain points of traditional AC power-supply solutions—low efficiency, large footprint, and poor load-response flexibility—Meituan, Chindata, and Delta jointly conducted technical research and development and ultimately decided to deploy Delta’s indoor-type SST system to resolve the contradiction between computing-power growth and power bottlenecks.Delta's indoor-type SST system overcame the contradiction between the growth of computing capacity and electrical power bottlenecks.

Delta SST reshapes power-delivery standards for computing power
Delta's SST system provided Meituan with customized power support through three major technological innovations. Its outstanding performance was demonstrated in three areas: exceptional energy efficiency, space utilization, and intelligent scheduling.

In balancing extreme efficiency with safety protection, the system employed Delta’s proprietary solid insulation technology and silicon carbide (SiC) high-frequency power conversion technology to step down medium-voltage grid power directly into multi-level DC outputs of 240V/400V/800V. Conversion efficiency reached up to 98.5%, reducing energy losses by more than 30% compared with conventional solutions. In addition, the system incorporated a multi-layer fault-tolerant control architecture to ensure that local faults did not propagate and that the system operated stably.

In terms of ultra-high power density, Delta’s SST system employs a modular design: a single power cabinet delivers up to 1 MW while occupying just one square meter—more than a 50% space savings compared with conventional solutions. This is critical in space-constrained data-center IT areas because it frees additional room for deploying high-performance servers. Based on the site’s existing scale, upgrading only the power system can accommodate several thousand additional AI servers, meeting Meituan’s projected computing expansion needs for the next three to five years. To address the highly variable characteristics of AI GPU loads, the Delta system supports dynamic voltage regulation and intelligent adjustments to its power-supply strategy, automatically matching output to real-time load demands. The solution adopts a “distributed SST + DC bus” architecture deployed adjacent to IT racks to reduce transmission losses. It can also integrate energy-storage units to enable switching among utility, battery, and combined-supply modes, providing peak shaving and valley filling as well as emergency backup capabilities.

Xin-Ping Ye, Product Marketing Director of the ICT Infrastructure Department, Delta GreenTech China (DGC), said: “During the process of implementing innovation, we faced multiple challenges — on one hand, we had to respond to Meituan’s AI business’s rapidly growing computing power requirements; on the other hand, we needed to overcome the limitations of traditional power delivery with respect to stability, energy efficiency, and flexibility. We centered our solution on the SST and custom-engineered an intelligent power-delivery architecture featuring high power density and multi-voltage outputs. While ensuring high reliability, we achieved exceptional energy savings and dynamic allocation capabilities, successfully overcoming the bottlenecks of existing power-supply solutions for computing centers.”At the project launch event, Xin-Ping Ye, Product Marketing Director of DGC’s ICT Infrastructure Department, provided an in-depth analysis of the advantages of Delta's world-first SST system for computing centers.

Delta SST ushers in a new stage of coordinated development between computing power and electricity
The successful deployment of Delta's SST system enhanced Meituan's computing-power stability and scalability, and provided a solid foundation for its innovative businesses, including the development of large-scale AI models and autonomous delivery, thereby helping to accelerate the implementation of its "Doorstep Delivery" strategy. Meituan's Foundation Infrastructure Head stated: "Delta possessed extensive industry experience and deep technical expertise. Through multi-party collaboration with Delta and Chindata, the first global SST system was able to move from initial conception to implementation. This was not only a trial of a new architecture, but also a milestone encouraging the entire industry to explore new avenues of computing-power and electricity coordination."
At the project launch ceremony, the Meituan Infrastructure Director expressed strong endorsement of this collaboration.

For Chindata, the solution enhanced its competitiveness and through a green power supply, further reduced PUE (power usage effectiveness). Delta's SST system, as successfully applied in the Chindata’s north China site, adjacent to the Beijing–Tianjin digital economy cluster. fully demonstrated its practical value in high-density computing scenarios. It not only injected new momentum into the business growth of the campus customer Meituan, but also reaffirmed Delta's leadership in critical power technologies for data centers.

James Ku, Head of the Data Center Platform, DGC, stated: “This project not only validated Delta’s leading advantage in SST technology, but also demonstrated our determination, together with industry peers, to build a smart energy ecosystem. We are grateful for our partners’ trust, which gave Delta the opportunity to apply this leading SST technology to a compute center for the first time globally, advancing the industry toward higher efficiency, a smaller footprint, and greater adaptability.” Looking ahead, Delta will continue to employ innovative, highly efficient power solutions to assist global data centers in addressing the challenges posed by the rapid growth of computing capacity, while promoting the digital economy toward higher performance and sustainable development.