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Energy Systems Lab
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A lab that designs energy systems from the demand-side perspective.
AboutAbout the lab
Designing energy systems from the demand-side perspective
The Energy Systems Lab works on developing and implementing in society energy systems that address environmental impact, security, economic efficiency, and resilience, from the demand-side perspective.
Building on systems engineering and power engineering, the lab conducts research spanning a wide range of academic fields, including mathematical programming and game theory.
In addition to fundamental academic research, the lab actively engages in joint research and consulting with industry.
Students can apply to join the lab from the College of Engineering Systems for undergraduate thesis research, and from the Degree Program in Structural Energy Engineering at the graduate level.
Key terms
- Flexibility
- The flexibility, or balancing capability, of the power grid. It is needed to cope with changes and uncertainty in generation output.
- Distributed energy resources
- Energy-related devices and equipment installed at consumers' sites. Abbreviated as DER.
- V2G
- A technology that uses the charging and discharging of electric vehicles for power grid operation. Short for vehicle-to-grid.
- Aggregator
- A business operator that brings together small-scale consumers such as households and trades in the market on their behalf.
NewsLab news
View More ↗ResearchResearch themes
The lab works on developing and implementing in society energy systems that address reduced environmental impact, security, economic efficiency, and resilience, from the demand-side perspective. Based on systems engineering and power engineering, it studies regional energy systems, flexibility of the power grid, and coordination with electric vehicles.
*Illustrative imageOptimal regional energy systems
Toward carbon neutrality in 2050, the lab explores what regional energy systems should look like. Using mathematical programming models, it designs optimal energy systems that are desirable from the demand-side perspective.
*Illustrative imageProviding grid flexibility from the demand side
Spreading renewable energy requires power grid flexibility (balancing capability) that can respond to changes in generation output. The lab develops technologies that can provide flexibility from the demand side, such as through local communities and microgrids, and proposes social mechanisms for doing so.
*Illustrative imageOptimal operation of distributed energy resources
To reduce the impact of the spread of renewable energy on power grid operation, the lab develops technologies for the optimal operation of distributed energy resources (DER) installed at consumers' sites. Through demand response and electric vehicle charging and discharging (V2G), it identifies modes of operation that contribute to grid operation while also benefiting consumers.
*Illustrative imageProcuring flexibility from consumers
Small-scale consumers such as households trade in the market through business operators called aggregators. The lab aims to develop technologies that continuously build an optimal procurement portfolio, adapting to changing conditions, from a large number of consumers with different equipment and values.
MembersFaculty
The members of the Energy Systems Lab consist of faculty and students in the doctoral program, the master's program, and the undergraduate college.As of 2026
- ProfessorHirohisa Aki
VoicesStudent voices
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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: “Overhead power lines in Iran 10” Mostafameraji / CC0 (cropped)
- Optimal regional energy systems: “TP - Central Heating Plant” P199 / CC BY-SA 4.0 (cropped)
- Providing grid flexibility from the demand side: “Chubu Electric Power Grid Chushin Substation” photo: Qurren (talk) Taken with Canon PowerShot G9 X / CC BY-SA 4.0 (cropped)
- Optimal operation of distributed energy resources: “Car2Go Charging Station Stuttgart 2013 01” Julian Herzog (Website) / CC BY 4.0 (cropped)
- Procuring flexibility from consumers: “Rooftop-solar-Polaron-solar” Ellen Whisk / CC BY-SA 4.0 (cropped)
- Related lab (気候スマートシティ研究室
（C2S Lab） ): “Be'er Sheva heat island at night” Xmidrashnik / CC BY 4.0 (cropped) - Related lab (情報理論研究室): “EFTA00000441 - Server room filled with networking equipment cables and rack-mounted servers” Federal Bureau of Investigation / Public domain (cropped)
- Related lab (スマートグリッド研究室): “Solar Power Plant of Brežice Hydroelectric Power Plant 03” Janezdrilc / CC0 (cropped)
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制御・計測研究室): “COLOR IMAGE OF THE FLOW VISUALIZATION RIG - BLACK & WHITE IMAGE OF DIFFUSER EXPERIMENT RIG - NARA - 17448953” 作者不詳 / Public domain (cropped)
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