Hitachi unveils 800 VDC architecture for AI data centers

Key Takeaways

• Hitachi introduces 800-volt direct current (800 VDC) power and control architecture for AI data centers
• The architecture is integrated into the Vera Rubin DSX reference design and compatible with NVIDIA Omniverse DSX Blueprint
• The solution enables faster and more confident design, simulation, and deployment of AI factories
• The 800 VDC architecture can manage 15x more power than legacy systems, reducing electricity use and footprint

Introduction to 800 VDC Architecture

Hitachi, Ltd. has unveiled its 800-volt direct current (800 VDC) power and control architecture, designed to support the growing demands of AI data centers. This innovative solution is fully integrated into the Vera Rubin DSX reference design and compatible with the NVIDIA Omniverse DSX Blueprint, enabling seamless integration with future NVIDIA rack designs in gigawatt-scale AI factories.

Bridging the Physical and Digital Worlds

The 3D simulation model of Hitachi's solution, enabled by OpenUSD, replicates power behavior across the full electrical chain, from the utility grid to the data center rack. This allows data center developers and utilities to design, simulate, and deploy AI factories faster and with confidence. The simulation model provides key features and benefits, including:

Simulation Model Features

• SimReady asset integration, bridging the gap between design and operational workflows
• Grid stability, demonstrating stable and consistent power delivery to 800 VDC racks while maintaining grid compliance
• Predictive management, enabling predictive and prescriptive operations and maintenance from the data center to the substation and grid

Comparison of Power Delivery Architectures

Future of AI Data Centers

The rapidly growing AI workloads are forecasted to increase electricity demand up to 125 gigawatts of capacity by 2030, driving major power system expansion and modernization. Hitachi's 800 VDC architecture is instrumental in feeding the increased power to data centers, enabling greater compute density with lower electricity use in a smaller footprint.

Bottom Line

In conclusion, Hitachi's 800 VDC power and control architecture is a significant step forward in supporting the growing demands of AI data centers. With its ability to manage 15x more power than legacy systems, reduce electricity use, and minimize footprint, this solution is poised to play a crucial role in the future of AI data centers. As the demand for AI computing continues to grow, innovative solutions like Hitachi's 800 VDC architecture will be essential in enabling efficient, reliable, and sustainable data center operations.