Energy policy research group

Climate change is the greatest challenge of our time. Energy issues are particularly complex, and cross multiple fields of knowledge. In Professor Cross' Laboratory, a small group of motivated students with engineering, economics, and computer science background are the "Energy Policy" group, which contributes at its scale and in different ways to provide energy solutions to the challenges currently faced by society. Their respective research activities are briefly described below:


Impacts of Interconnecting with Korea on Japan’s Electric Power Companies’ Competitive Business Segments


Romain Zissler, D2 student, Energy Course, Working Adult Program


The goal of this thesis research is to stimulate interest and encourage participation of Japan's power companies in the Asia Super Grid initiative by understanding why they may oppose such project, and then draft proposals to address their potential concerns. To do so, an assessment of the potential impacts of interconnecting Japan and Korea’s electrical grids – potentially a decisive first step – on competitive business segments of Japan’s power companies is being led.


A Symbolic Representation of Asia Super Grid

Source: Renewable Energy Institute, About “Asia Super Grid” (ASG) (accessed September 28, 2018).

All-day energy harvesting power system utilizing a thermoelectric generator with phase change materials for utilizing heat storage


Yasuki Kadohiro, M1 Student, Energy Course


The objective of the research is to develop the compact and cost-effective solar/thermoelectric generator hybrid system, which can generate electricity not only in the daytime but at nighttime, for the households.


Fig 1. Schematic of a hybrid solar, phase change material, water and heat storage system (Night/Day operation) 

In order to achieve it, the hybrid system shown in Fig.1 will be developed. The experimental and analytical studies will be conducted to verify system performance. If proven to be successful, the hybrid system becomes more attractive than the conventional system and it becomes one of the useful tools to meet the high future energy demand in a compact and cost-effective manner.

Blue carbon: The Dynamic Monitoring, Restoration and Carbon Sequestration Potentiality Evaluation of Seagrass Ecosystem in Tokyo Bay


Hao Liu, M2 student, IGP(C) Energy Course


When we talk about energy policy, the first thing comes to our mind

is to reduce GHG (greenhouse gas) emission. Because ocean has

enormous carbon sequestration potential, 93% of carbon dioxide in

the earth is stored and recycled through the ocean. Meanwhile, the

topic of blue carbon has appealed more and more researchers’

interest. Given the situation of Tokyo Bay, thus, this research topic is

to monitor, restore coastal ecosystem (mainly focus on Seagrass

ecosystem now) in Tokyo Bay, evaluate the carbon sequestration

ability through AI and big data technology. If you are interested in my

research topic, please feel free to contact me to know more detail.

Like the figure 1 shows, this research combined Random Forest (RF)

and Triple Generative Adversarial Networks (GAN) to deal with the

data discontinuity problem of high-resolution satellite remote

sensing images which is data augment. Then, use seawater data from

JAXA, design carbon sequestration evaluation model and general

habitat expand model to evaluate the carbon sequestration ability,

restore expand the habitat.

Figure 2 shows the expected result of the Triple GAN with RF as

discriminator, it can detect the target area clearly.


Fig. 2  Detection result of seagrass habitat in Tokyo Bay

Development of community microgrid in urban residential area: Case study of Ulaanbaatar, Mongolia

Tumurbaatar Uyanga, Energy Course M1 student, IGPC

Electrical power microgrids (see fig.) have been mainly seen as a solution for rural electrification integrating more renewable energy, and offering reliable power supply, however, in recent years, it’s getting more attention in urban areas as well. Especially, in cities in developing country, various issues are entangled with energy issue, such as energy security, diversification, environmental and social problems etc. In this research, the microgrid development will be studied as an alternative solution to tackle various issues in Ulaanbaatar, Mongolia.

Having rich renewable energy resource, Mongolian energy system is heavily dependent coal which causes

deadly air pollution yet imports 20% of electricity demand from Russia. Also, both the generation and

transmission facility are exceeded their lifespan, thus requiring system upgrade in near future, to supply

reliable, sustainable, and affordable electricity and heat to its increasing population. Through this research,

the appropriate technology combination suited for local demand characteristics will be evaluated using

Homer Pro software simulation and will be compared to previous projects done by the government in terms

of economic and environmental impact. See fig. below source: Microgrid, Source: Enova Energy