800V HVDC Delployed: ESS & Backup Power Solution for AIDC in Inner Mongolia

Project Background

The short video and live streaming market in China is growing rapidly, driving massive increases in data volume and computing demand. The client is one of China’s leading video content platforms, with over 900 million daily active users by 2024. As the company expands its adoption of AI and big data technologies, it requires robust infrastructure to process large volumes of data quickly and reliably. To meet these demands, the company built one of the largest AI & Big Data Computing Centers (AIDC) in China.

Customer Challenges & Requirements

To support next-generation AI and big data workloads, this AIDC faces several key challenges in backup power:

1. High Power Demand: CPU and GPU power consumption has increased sharply over the past five years, pushing single-rack power to hundreds of kilowatts.

2. Reliability & Safety: The system must provide uninterrupted power for critical AI workloads, minimize fire risks, and ensure safe operation under extreme conditions.

3. Space Efficiency: High-density computing racks require power solutions that save space and do not occupy too much space in the data center.

4. Sustainability: The solution should support efficient energy use, reduce waste, helping the data center achieve green and sustainable operations.

Project Introduction

Vision Battery Solution

To meet the AIDC’s needs, Vision Battery offered a customized 800V HVDC Immersion Cooling Energy Storage & Backup Integrated Solution.

800V HVDC Integrated ESS and Backup Power Solution

1. Integrated Backup & Energy Storage

The system supports daily energy distribution and backup power, and is compatible with 800V DC solar systems. Under normal power conditions, it can charge and discharge for revenue generation while maintaining sufficient backup capacity. If the grid fails, it seamlessly switches to backup power to ensure uninterrupted operation of the equipment.

2. Semi-Immersion Cooling

Battery cells are semi-immersed in cooling liquid, isolating heat from air and reducing failure and fire risks.

3. Weather-Resistant Outdoor Design

IP55-rated, sand- and wind-proof, with intelligent temperature control for harsh environments.

4. Space & Energy Efficiency

Fully outdoor, combined with intelligent thermal management to improve system efficiency.

Project Value

This deployment represents one of the first successful implementations of 800V HVDC Integrated ESS and Backup Power System in China’s AIDC sector, delivering significant operational benefits to the client:

1. Safe and Reliable Power for AIDC

Ensures continuous operation of AI & Big Data workloads, minimizing downtime and operational risks.

2. Supports Large-Scale AI & Big Data Computing

Provides stable power for next-generation AI chips and high-performance servers, enabling large-scale AI workloads.

3. Optimized Space and Energy Use

Fully outdoor, compact design saves data center space and reduces cooling load, improving PUE and overall efficiency. Semi-immersion cooling and intelligent temperature control enhance thermal management, with system efficiency above 92%.

4. Supports Renewable Energy Integration

Enables the client to utilize solar power via the built-in energy storage module, reducing grid dependence, cutting electricity costs, and creating opportunities for revenue through energy dispatch.

This project represents a milestone in China’s AIDC energy storage solutions, showcasing Vision Battery’s ability to deliver high-performance, safe, and innovative storage systems for ultra-large-scale AI and big data computing centers.