Mitsui Fudosan has begun developing Japan’s first underground data center using an existing tunnel in Kobe. Services are initially targeted to begin at the end of 2027, with future receiving capacity expected to reach up to 20 MW.
Mitsui Fudosan is jointly developing Japan’s first underground data center with Kumagai Gumi and Getworks, using a tunnel in Kobe. The project is positioned as a model for utilizing unused underground space, taking advantage of the cool environment and earthquake resistance of underground areas.
The plan calls for containerized data center equipment to be installed in an existing tunnel deep underground. The facility is ultimately intended to operate as a data center with a maximum receiving capacity of 20 MW. Initial development is scheduled to begin providing services at the end of 2027.
The facility will support the latest GPU servers suited to the generative AI era and introduce a water-cooling system using recirculated groundwater. The companies are also looking ahead to nationwide expansion, leveraging the earthquake resistance and security of underground space.