Japan Data Center Update 15: Tokyo and Kansai Expansion Gains Pace as Edge Data Centers Emerge

JFE and Mitsubishi to Develop Integrated Power Plant and Data Center Hub in Keihin Ogishima, Kanagawa

JFE Holdings, one of Japan’s leading steelmakers, and Mitsubishi Corporation jointly announced that the companies will develop an integrated power plant and data center in the Keihin Ogishima industrial zone, in Kanagawa Prefecture. The project will utilize JFE’s 190 MW power plant at the former JFE steelworks site, while constructing and operating a data center on adjacent land. Together with MC Digital Realty (MCDR), a Mitsubishi Corporation-backed data center operator, the companies aim to launch an initial 60 MW data center by 2031. In the long term, they plan to expand the site into a hub with several hundred megawatts of capacity.

NTT Data Opens 30 MW Keihanna OSK11 Data Center Near Osaka’s Economic Center

NTT Data Group announced the official opening of the Keihanna OSK11 Data Center (OSK11) in the Kyoto-Keihanna area. Launching data centers in the Kansai region is gaining importance to meet the rising regional demand.

Located near Osaka’s Dojima district, the regional economic hub, the facility offers 30 MW of IT capacity across 10,900 square meters of server room space. The site is designed to provide high availability and scalability for hyperscalers and enterprise customers.

NTT Data’s 30MW data center launched in Seika Town, Kyoto Prefecture

Mitsubishi Heavy Launches DIAVAULT Brand for Industrial Edge Data Centers

Mitsubishi Heavy Industries announced the launch of its “DIAVAULT” brand as it expands into the industrial edge data center business. The company has developed proprietary digital infrastructure for on-premises environments, offering advantages in low-latency processing and data confidentiality.

Demand for real-time processing of large volumes of data has grown rapidly in recent years, while remote processing through cloud infrastructure often faces latency constraints. In response, Mitsubishi Heavy Industries has begun developing edge data centers that process data close to where it is generated. The facilities can be flexibly scaled based on customer needs, ranging from small installations to several megawatts of capacity.