Hitachi and MOL Forge Partnership to Develop Floating Data Centers Using Retired Ships April 2, 2026 As the global demand for artificial intelligence and high-performance computing continues to surge, the data center industry faces mounting pressure to find innovative, scalable, and sustainable solutions for new infrastructure. In a significant move addressing these challenges, two Japanese industrial giants have announced a pioneering joint venture to explore the commercialization of floating data centers (FDCs) housed within repurposed ships. Mitsui O.S.K.
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Lines (MOL), one of the world's largest shipping companies with a fleet exceeding 900 vessels, and technology conglomerate Hitachi have signed a memorandum of understanding to jointly build and operate these novel facilities. The partnership aims to develop a commercially viable service, with the first operational units targeted for launch no earlier than 2027. The initial phase will focus on Japan-based locations and encompass comprehensive feasibility studies, demand verification, and the establishment of basic specifications and construction procedures. Under the agreement, responsibilities are clearly divided according to each company's core expertise. MOL will manage all maritime aspects, including the conversion plans for retired ships, coordination with port authorities for mooring, and ongoing vessel maintenance. Hitachi and its subsidiary Hitachi Systems will leverage their extensive experience in land-based data centers to handle the technological side. This includes designing, installing, and operating the computing and hosting infrastructure, as well as managing the networking and security systems tailored for a floating environment. The envisioned FDCs are not intended to be fully independent offshore vessels. Instead, the repurposed ships will remain moored at ports, utilizing land-based power and connectivity to deliver data center services to customers. This model offers several distinct advantages over traditional land-based construction. MOL's announcement highlights that utilizing existing vessels eliminates the need to acquire large plots of land, potentially reducing community friction and shortening construction timelines. Furthermore, a well-designed water-cooling system could efficiently leverage adjacent seawater or river water for heat dissipation, enhancing energy efficiency and providing protection against overheating. The concept also introduces notable flexibility; an FDC could theoretically be relocated in response to shifting regional data demand. MOL illustrated the scale potential by noting that a converted car carrier could provide approximately 54,000 square meters of floor space, rivaling the capacity of Japan's largest terrestrial data centers. While floating data center concepts have been proposed before—such as integrating them into floating wind turbines—this partnership between established corporate leaders marks a substantial step toward near-term commercialization, offering a potential blueprint for sustainable infrastructure expansion in the AI era. Source: techspot
