Announced details
PUE of 1.08 (interim design value)
At least 90% reduction in cooling power consumption versus air cooling (design target and interim reference value)
Estimated annual reduction in cooling power consumption of approximately 175,200 MWh/year
Estimated annual electricity cost savings of approximately ¥4.38 billion/year
Estimated annual CO₂ emissions reduction of approximately 87,600 t-CO₂/year
Estimated cumulative benefit over 10 years of approximately ¥43.8 billion
Target thermal throttling incidence rate of 0%
北浜GRF株式会社 is responsible for overall PoC coordination, system design, operational planning, intellectual property strategy and commercialization planning. Tohoku University is responsible for providing the measurement environment and conducting evaluations, Super Micro for providing the GPU server infrastructure, Ablecom for designing and manufacturing the liquid-immersion cooling equipment, and Idemitsu Kosan Co.,Ltd. for supplying cooling oil, providing data and supporting analysis.
The Tohoku University Cyber Science Center is the evaluation body in Sendai, Miyagi Prefecture. The locations, representatives, capital, year of establishment and other details of the other counterparties are Not disclosed.
Tohoku University Cyber Science Center (Sendai, Miyagi Prefecture), Commercial site in Iga, Mie Prefecture
The impact is currently expected to be limited.
The company does not address Contract Value / Offering price.
| Item | Details |
|---|---|
| Names of Products / Services Covered | Oil-immersion-cooled AI data center (AIDC), Liquid-immersion-cooled data server system, Cooling oil IICF-22E |
| Counterparty | Tohoku University Cyber Science Center, National University Corporation, Super Micro Computer, Inc., Ablecom Technology Inc., Idemitsu Kosan Co.,Ltd. |
| Counterparty overview | The Tohoku University Cyber Science Center is the evaluation body in Sendai, Miyagi Prefecture. The locations, representatives, capital, year of establishment and other details of the other counterparties are Not disclosed. |
| Relationship with the Company | 北浜GRF株式会社 is responsible for overall PoC coordination, system design, operational planning, intellectual property strategy and commercialization planning. Tohoku University is responsible for providing the measurement environment and conducting evaluations, Super Micro for providing the GPU server infrastructure, Ablecom for designing and manufacturing the liquid-immersion cooling equipment, and Idemitsu Kosan Co.,Ltd. for supplying cooling oil, providing data and supporting analysis. |
| Launch date | Transition to the final validation phase (as of the announcement on 18 June 2026; specific start date is Not disclosed) |
| Applicable area | Generative AI, Large language models (LLMs), Image analysis, Various simulations, AI Data Center, HPC |
| Location | Tohoku University Cyber Science Center (Sendai, Miyagi Prefecture), Commercial site in Iga, Mie Prefecture |
| Location scale | Commercial site of approximately 290,000 m², Commercial AIDC of approximately 50 MW (5 buildings × 10 MW) |
| Quantitative Effects | PUE of 1.08 (interim design value), At least 90% reduction in cooling power consumption versus air cooling (design target and interim reference value), Estimated annual reduction in cooling power consumption of approximately 175,200 MWh/year, Estimated annual electricity cost savings of approximately ¥4.38 billion/year, Estimated annual CO₂ emissions reduction of approximately 87,600 t-CO₂/year, Estimated cumulative benefit over 10 years of approximately ¥43.8 billion, Target thermal throttling incidence rate of 0% |
| Impact on Business Performance | The impact is currently expected to be limited. |
Items this document does not state (8)
These are items the company does not state in this document. We do not leave them blank, nor fill them in from other sources or by inference.
The reasons the company gives
The company's own explanation, not something inferred from the numbers.To quantitatively verify the effectiveness of oil-immersion cooling and its operating technologies before commercialization, and to obtain the basic parameters required for deployment at a commercial 50 MW scale.