The University of Tokyo and Fujitsu launch trial for Japan's first cloud-connected inter-regional workload shift based on power grid conditions
Tokyo and Kawasaki, Japan, December 24, 2025 – The University of Tokyo (UTokyo) and Fujitsu Limited today announced the commencement of a trial on inter-regional workload shifting between data centers. This initiative is part of the Watt-Bit Collaboration Project, which aims to optimize electricity supply and demand by integrating and operating power and communication systems in response to the increasing power consumption of data centers driven by AI demand. The trial will run from January 5, 2026, to March 31, 2026.
This trial is a technical verification toward the realization of the Watt-Bit Collaboration Project for Green Transformation, which the UTokyo announced with TEPCO Power Grid in October 2025. Moving forward, the partners aim to build a carbon-neutral and sustainable infrastructure and contribute to green transformation by actively utilizing renewable energy to meet electricity demand.
The two organizations will collaborate with national and related bodies to expand connected locations and plan additional verifications, including the utilization of APN (All Photonics Network), the next-generation communication infrastructure. Through open innovation and collaboration across industry, government, and academia, the organizations will develop technologies to realize a sovereign distributed data center concept ensuring data and operational sovereignty primarily in regions surrounding renewable energy sources, thereby contributing to the development of sustainable public infrastructure.
UTokyo's Center for Strategic Promotion of Green Transformation (GX) has previously promoted the introduction of renewable energy and the spatial and temporal understanding of electricity consumption and conducted trials on workload shifting based on electricity price differences between regions. In addition to these efforts, UTokyo will proceed with the integrated visualization of campus-wide electricity consumption and carbon footprint, the utilization of energy data such as from power grids, and the optimization of electricity consumption within the campus across facilities and equipment, including workload shifting and further utilization of renewable energy.
Fujitsu aims to advance the social implementation of the Watt-Bit Collaboration and make the world more sustainable by providing the sovereign cloud solution Fujitsu Cloud Service powered by Oracle Alloy and cloud-native technologies including containers, which are essential for distributed data centers.
This trial is a technical verification toward the realization of the Watt-Bit Collaboration Project for Green Transformation, which the UTokyo announced with TEPCO Power Grid in October 2025. Moving forward, the partners aim to build a carbon-neutral and sustainable infrastructure and contribute to green transformation by actively utilizing renewable energy to meet electricity demand.
The two organizations will collaborate with national and related bodies to expand connected locations and plan additional verifications, including the utilization of APN (All Photonics Network), the next-generation communication infrastructure. Through open innovation and collaboration across industry, government, and academia, the organizations will develop technologies to realize a sovereign distributed data center concept ensuring data and operational sovereignty primarily in regions surrounding renewable energy sources, thereby contributing to the development of sustainable public infrastructure.
UTokyo's Center for Strategic Promotion of Green Transformation (GX) has previously promoted the introduction of renewable energy and the spatial and temporal understanding of electricity consumption and conducted trials on workload shifting based on electricity price differences between regions. In addition to these efforts, UTokyo will proceed with the integrated visualization of campus-wide electricity consumption and carbon footprint, the utilization of energy data such as from power grids, and the optimization of electricity consumption within the campus across facilities and equipment, including workload shifting and further utilization of renewable energy.
Fujitsu aims to advance the social implementation of the Watt-Bit Collaboration and make the world more sustainable by providing the sovereign cloud solution Fujitsu Cloud Service powered by Oracle Alloy and cloud-native technologies including containers, which are essential for distributed data centers.
