Electricity and Control December 2025-January 2026

Industry 4.0 + IIoT: Products + services

Global collaboration supporting the AI boom

Tokyo Stock Exchange listed Hitachi, Ltd and Hitachi Energy, a global leader in electrification, recently announced support for the 800 volt direct current (Vdc) power architecture that Nvidia is working towards [1] by developing a cleaner, more e§icient way to power the next-generation of artificial intelligence (AI) infrastructure. At this level, the power architecture paves the way for more energy-e§icient ‘AI factories’ at a global scale. Modern AI workloads are pushing data centres beyond the limits of traditional power architectures, which were designed for smaller compute loads. Hitachi Energy’s advanced grid- to-rack architecture supports the 800 Vdc rack design and streamlines the flow of electricity from the grid to servers. It o§ers a simpler, more e§icient, and more sustainable power system built for modern data centres, one that cuts energy waste, reduces cooling needs, and accelerates the deployment of hyperscale AI facilities. “As the energy arm of the Hitachi Group, Hitachi Energy brings over a century of expertise in grid technologies and power electronics to this collaboration,” said Jun Taniguchi, Senior Vice President and Executive O§icer, CEO of Strategic SIB Business Unit, Hitachi, Ltd. “Through our wider focus on the data centre industry, the Hitachi Group’s combined expertise enables clean and sustainable development of the AI factories of the future.” It is forecast that up to 125 gigawatts (GW) of AI data centre

capacity could be developed globally between 2025 and 2030 [2] , comparable to Spain’s total installed generation capacity [3] . Meeting this demand requires unprecedented investment and advances in computing as well as in energy infrastructure. As a global market leader in transformers, high-voltage technology, digitalised grids, and service, Hitachi Energy is investing $9 billion globally, the largest investment in the industry, to expand manufacturing, R&D, engineering, and partnerships. This includes a historic $1 billion investment to advance the production of critical grid solutions in the US. The investments will be key to meeting energy needs, including the energy needs of AI data centres, and supporting a robust, future-ready electric grid. Hitachi and Hitachi Energy support the 800 Vdc power architecture Nvidia is working towards for the next generation of AI infrastructure.

For more information visit: https://www.hitachienergy.com

References [1] Nvidia 800 V data centre architecture

The exponential growth of AI workloads is increasing data centre power demands. Traditional 54 V in-rack power distribution, designed for kilowatt scale racks, isn’t designed to support the megawatt-scale racks coming soon to modern AI factories. NVIDIA is leading the transition to 800 VDC data centre power infrastructure to support 1 MW IT racks and beyond, starting in 2027. To accelerate adoption, NVIDIA is collaborating with key industry partners across the data centre electrical ecosystem. [2] The cost of compute power: A $7 trillion race to scale data centres l McKinsey [3] Installed capacity l System report Red Electrica January 2024

Immersion cooling for AI and HPC applications

compromising reliability or serviceability.” The Vertiv CoolCenter Immersion is available in various configurations, including self-contained and multi-tank options, with cooling capacities from 25 kW to 240 kW. Each system includes an internal or external liquid tank, coolant distribution unit (CDU), temperature sensors, variable-speed pumps, and fluid piping, delivering precise temperature control and consistent thermal performance. Dual power supplies and redundant pumps provide high cooling availability, and integrated monitoring sensors, a 9-inch touchscreen, and building management system (BMS) connectivity simplify operation and system visibility. The system is designed also to enable heat reuse opportunities, supporting more e§icient thermal management strategies across facilities and broader energy-e§iciency objectives. Vertiv™ Liquid Cooling Services provide end-to-end expertise, from system design and installation to maintenance, training, and lifecycle optimisation, helping customers evaluate and implement the most e§ective liquid-cooling architectures. Supported systems include rear-door heat exchangers, direct-to-chip liquid cooling, and immersion cooling, enabling reliable, scalable, and e§icient thermal management for AI, HPC, and other high-density computing environments.

NYSE listed Vertiv, a global leader in critical digital infrastructure, has introduced the Vertiv™ CoolCenter Immersion cooling system, expanding its liquid cooling portfolio to support AI and high-performance computing (HPC) environments ready to maximise the superior thermal properties of liquid cooling. The system is available now in Europe, the Middle East, and Africa (EMEA). With immersion cooling the servers are submerged in a dielectric liquid which provides e§icient and uniform heat removal across all components, where power densities and thermal loads exceed the limits of traditional air-cooling methods. Vertiv CoolCenter Immersion serves as a complete liquid-cooling architecture, enabling reliable heat removal for dense computing, ranging from 25 kW to 240 kW per system. “Immersion cooling is playing an increasingly important role as AI and HPC deployments push thermal limits far beyond what conventional cooling systems can handle,” said Sam Bainborough, EMEA Vice President of thermal business at Vertiv. “With the Vertiv CoolCenter Immersion, we’re applying decades of liquid-cooling expertise to deliver fully engineered systems that handle extreme heat densities safely and e§iciently, giving operators a practical path to scale AI infrastructure without

For more information visit: www.vertiv.com

9 DEC 2025 - JAN 2026 Electricity + Control

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