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Hayashi Lab
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The lab studies energy management for using renewable energy intelligently.
AboutAbout the lab
Toward a society where people manage the electricity they use themselves
The Hayashi Lab studies power management technologies suited to a society where renewable energy and electric vehicles are becoming widespread.
The lab develops systems for using energy efficiently at scales ranging from individual homes to communities and the entire power grid.
Through these technologies, the lab aims to reduce carbon dioxide emissions and help realize a carbon-neutral society.
Key terms
- Energy management system
- A system that monitors electricity use and generation and automatically adjusts the operation of devices
- Digital twin
- A system that reproduces the behavior of actual equipment and power grids on a computer
- Power flow
- The amount and direction of electricity flowing through a power grid
NewsLab news
A master's student won an Excellent Poster Award at the Institute of Electrical Engineers of Japan (IEEJ) Electronics, Information and Systems Society Conference
A master's student won the Second Best Paper Award at the 13th International Conference on Renewable Energy Research and Applications
Four students won the YPC Excellent Presentation Award and the YPC Encouragement Award at the 2024 IEEJ Power & Energy Society Conference
Prof. Hayashi was named a Fellow of the Institute of Electrical Engineers of Japan
A student won the Best Paper Award at the 2023 ONCON (IEEE Industrial Electronics Society Annual Online Conference)
ResearchResearch themes
In power systems, renewable energy sources such as solar and wind power continue to expand, but fluctuations in generation cause problems such as degraded power quality. The Hayashi Lab works on energy management systems that solve these problems and support safe, sustainable living.
*Illustrative imageSmarter Consumption
The lab monitors the power consumption of household appliances and solar power generation, and automatically controls the output of devices such as air conditioners and storage batteries. It also works on making energy system development more efficient through the use of digital twins.
*Illustrative imageManaging Renewable Energy
The lab uses smart meter data to forecast surplus power from solar generation, and uses machine learning to estimate wind power generation across all of Japan.
*Illustrative imageAdvanced Power Networks
Using ANSWER, a next-generation power network simulator, the lab develops control methods that keep voltage and power flow within appropriate ranges even in grids with more solar power and electric vehicles.
*Illustrative imageDesigning Next-Generation Smart Cities
The lab designs mechanisms for managing energy across an entire region by combining weather data and distribution system data. It also studies integration with transportation data from electric vehicles and buses.
MembersFaculty
The Hayashi Lab consists of faculty members, affiliated faculty and researchers, doctoral, master's, and undergraduate students, and administrative support staff.As of 2026
- ProfessorYasuhiro Hayashi
VoicesStudent voices
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RelatedLabs similar to Hayashi Lab
Kikusato LabSchool of Advanced Science and Engineering, Department of Electrical Engineering and BioscienceEnergy networks and smart grids
Amasawa LabSchool of Advanced Science and Engineering, Department of Electrical Engineering and BioscienceSustainable social systems and energy
Wasa LabSchool of Advanced Science and Engineering, Department of Electrical Engineering and BioscienceSystems and control
Kondo LabSchool of Advanced Science and Engineering, Department of Electrical Engineering and BioscienceElectric mobility systems and electric railwaysThe information on this page is compiled by the LabLog team from the lab's public information and interviews. For corrections or removal requests, please contact LabLog, not the lab.
Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Electric transmission power tower” Foto3821 / CC0 (cropped)
- Smarter Consumption: “Rooftop solar panels in Caldicot - geograph.org.uk - 6388281” Jaggery / CC BY-SA 2.0 (cropped)
- Managing Renewable Energy: “Power County Wind Farm 002” ENERGY.GOV / Public domain (cropped)
- Advanced Power Networks: “Distribution transformer in Japan” Bio06940 / CC BY-SA 4.0 (cropped)
- Designing Next-Generation Smart Cities: “Close-up of an electric car charging station with a car plugged in” Ivan Radic / CC BY 2.0 (cropped)
- Related lab (Kikusato Lab): “City Lights of Asia and Middle East 2016” NASA Earth Observatory / Public domain (cropped)
- Related lab (Amasawa Lab): “Traditional Japanese wrapping cloth,huroshiki,katori-city,japan” katorisi / CC BY 3.0 (cropped)
- Related lab (Wasa Lab): “Kilobot robot swarm” asuscreative / CC BY-SA 4.0 (cropped)
- Related lab (Kondo Lab): “StrassenbahnPantograph” ProhibitOnions / Public domain (cropped)
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