Ryoichi KOMIYAMA
Professor Department of Nuclear Engineering and Management Department of Systems Innovation
Employment Record
2022- Professor, The University of Tokyo
2013-2022 Associate Professor, The University of Tokyo
2010-2013 Assistant Professor, The University of Tokyo
2010-Present Visiting Researcher, The Institute of Energy Economics, Japan (IEEJ)
2011-2012 Visiting Research Scholar, University of California at Berkeley (UCB)
2010-2010 Senior Researcher, The Institute of Energy Economics, Japan (IEEJ)
2009-2010 Researcher, The Institute of Energy Economics, Japan (IEEJ)
2007-2009 Visiting Research Scholar, Lawrence Berkeley National Laboratory (LBNL)
2003-2007 Researcher, The Institute of Energy Economics, Japan (IEEJ)
Carrer
Appointments
2015 (on-going) , Committee Member for Mediation and Arbitration in Electricity and Gas Market Surveillance Commission, Ministry of Economy, Trade and Industry, Japan
2015-2016, Appointment as Adjunct Lecturer, Akita International University, Japan
2012, 2014, 2016, Appointment as Adjunct Lecturer, Yokohama National University, Japan
2001-2007, Appointment as Adjunct Lecturer, Aeronautical Safety College, Japan
Membership on Governmental Working Groups
2017 (on-going), Committee Member, Electricity Market Rule Examination Committee, Ministry of Economy Trade and Industry, Japan
2017 (on-going), Committee Member, Capacity Mechanism Exploratory Committee, Organization for Cross-regional Coordination of Transmission Operators, Japan
2016 (on-going), Committee Member, Global Environment Sub-committee, Resource and Energy Working Group, Ministry of Economy Trade and Industry, Japan
2016 (on-going), Committee Member, Electricity Transmission Tariff Exploratory Committee, Ministry of Economy Trade and Industry, Japan
Key Qualifications
Dr. Komiyama joined the University of Tokyo, Department of Nuclear Engineering and Management, as an assistant professor in 2010. He is originally from the Institute of Energy Economics, Japan (IEEJ), where he conducted the development of energy-economics model based on econometrics and mathematical optimization, and the evaluation of long-term global energy demand and supply projection. He had also served as a member of formulating governmental energy projection under the supervision of Ministry of Economy, Trade and Industry (METI). He obtained a Bachelor in 1998, Master in 2000 and a Ph.D. degree in 2003, all in the field of electrical engineering from The University of Tokyo (UT). His fields of research are energy demand and supply projection in world and Asia, energy security and global change issue, and end-use energy system.
Selected Papers
Gyanwali, K., Bhattarai, A., Bajracharya, TR., Komiyama, R. and Fujii, Y, Assessing green energy growth in Nepal with a hydropower-hydrogen integrated power grid model, International Journal of Hydrogen Energy, 47(34), 15133-15148 (2022)
Gyanwali K.,Komiyama R., Fujii Y: Deep decarbonization of integrated power grid of eastern South Asia considering hydrogen and CCS technology, International Journal of Greenhouse Gas Control, Vol.112, December 2021, 103515 (2021)
https://doi.org/10.1016/j.ijggc.2021.103515
Yi Y., Gyanwali K.,Komiyama R., Fujii Y., Yamaguchi A.: How Will the Capital Cost Influence the Integration of CCS Coal Plants into the Chinese Low-carbon Optimal Power Expansion Plan by 2050?, Journal of Japan Society of Energy and Resources 42 (6), 368-384 (2021)
https://doi.org/10.24778/jjser.42.6_368
Sieed, J., Komiyama, R., and Fujii, Y., Dynamic Multi-Sector Energy Economic Analysis to Identify Potential of Nuclear and Renewable Energy Options in Expanding Electricity Sector of Developing Countries: Bangladesh Case Study, Journal of Japan Society of Energy and Resources, 42(5), 295-304 (2021)
Komiyama, R., Fujii, Y. Large-scale integration of offshore wind into the Japanese power grid. Sustain Sci (2021). https://doi.org/10.1007/s11625-021-00907-0
Matsuo, Y., Komiyama, R. System LCOE of variable renewable energies: a case study of Japan’s decarbonized power sector in 2050. Sustain Sci (2021). https://doi.org/10.1007/s11625-021-00914-1
Sugiyama, M. Fujimori, S. Wada, K. Oshiro, K. Kato, E. Komiyama, R., Kato, Diego, SH, Matsuo, Y. Shiraki, H. Yiyi J.; EMF 35 JMIP study for Japan’s long-term climate and energy policy: scenario designs and key findings. Sustain Sci (2021). https://doi.org/10.1007/s11625-021-00913-2
Shiraki H, Sugiyama M, Matsuo Y, Komiyama R, Fujimori S, Kato E, Oshiro K, Silva DH: T The role of renewables in the Japanese power sector: implications from the EMF35 JMIP. Sustain Sci (2021). https://doi.org/10.1007/s11625-021-00917-y
Sakamoto S., Nagai Y., Sugiyama M., Fujimori S.,Kato E,,Komiyama R., Matsuo Y., Oshiro K,, Silva DH: Demand-side decarbonization and electrification: EMF 35 JMIP study, Sustain Sci , 2021 (Accepted)
Khem Gyanwali, Ryoichi Komiyama, Yasumasa Fujii; Power sector analysis of the BBIN sub‐region with a spatially disaggregated dynamic power generation mix model, IEEJ Transactions on Electrical and Electronic Engineering, Vol.15, 11, pp. 1641-1654, 2020
Khem Gyanwali, Ryoichi Komiyama, Yasumasa Fujii, Tri Ratna Bajracharya; A review of energy sector in the BBIN sub-region, International Journal of Sustainable Energy, pp.1-27, 2020 , DOI: 10.1080/14786451.2020.1825436
J Sieed, R Komiyama, Y Fujii; Energy Demand Modelling for Developing Economies Using MAED-2 with Sectoral Decomposition: Bangladesh Case Study, Journal of Japan Society of Energy and Resources 41 (5), 149-154, 2020
J Sieed, R Komiyama, Y Fujii; Long-term Projection of Hourly Electricity Demand with Sectoral Decomposition for Developing Economies: Bangladesh Case Study, Journal of Japan Society of Energy and Resources 41 (4), 136-142, 2020
Gyanwali, K., Komiyama, R., and Fujii, Y. Representing hydropower in the dynamic power sector model and assessing clean energy deployment in the power generation mix of Nepal, Energy, 202, 117795 (2020)
Komiyama, R. and Fujii, Y.; Optimal Integration Assessment of Solar PV in Japan’s Electric Power Grid, Renewable Energy, Volume 139, August 2019, Pages 1012-1028, 2019. (doi: doi.org/10.1016/j.renene.2019.02.130)
Matsuo, Y. Endo, S. Nagatomi, Y. Shibata, Y. Komiyama, R. Fujii, Y..; A quantitative analysis of Japan’s optimal power generation mix in 2050 and the role of CO2-free hydrogen. Energy, Vol.165, pp. 1200-1219, 2018.(doi:10.1016/j.energy.2018.09.187)
Yasuaki Kawakami, Ryoichi Komiyama, Yasumasa Fujii: Penetration of Electric Vehicles toward 2050: Analysis Utilizing an Energy System Model Incorporating High-Temporal-Resolution Power Generation Sector, IFAC-PapersOnLine, Volume 51, Issue 28, Pages 598-603, 2018 (https://doi.org/10.1016/j.ifacol.2018.11.769)
Komiyama,R. and Fujii,Y., 2017: Assessment of post-Fukushima renewable energy policy in Japan’s nation-wide power grid, Energy Policy, Vo.101, February 2017, pp.594-611. [10.1016/j.enpol.2016.11.006]
Komiyama, R. and Fujii, Y., 2016: Optimal Integration of Variable Renewables in Electric Power Systems of Japan, Journal of Energy Engineering, American Society of Civil Engineers, F4016004. [10.1061/(ASCE)EY.1943-7897.0000361]
Komiyama,R. and Fujii,Y., 2015: Long-term scenario analysis of nuclear energy and variable renewables in Japan’s power generation mix considering flexible power resources, Energy Policy, Vol.83, pp.169-184, August 2015. [10.1016/j.enpol.2015.04.005]
Komiyama, R. and Fujii, Y., 2015: Energy modeling and analysis for optimal grid integration of large-scale variable renewables using hydrogen storage in Japan, Energy, Vol. 81, 1 March 2015, pp.537–555. [10.1016/j.energy.2014.12.069]
Komiyama, R. and Fujii, Y., 2015: Modelling Analysis of Electric Vehicle Penetration Scenario using Dynamic Optimal Power Generation Mix Model with High Temporal Resolution, IEEJ Transactions on Power and Energy, in Japanese, Vol. 135-B, No. 1, pp.61-70. [10.1541/ieejpes.135.61]
Membership of Academic Institutions
IAEE(The International Association for Energy Economics), JSER(Japan Society of Energy and Resources), JIE(The Japan Institute of Energy)