1:45 PM - 3:15 PM
[O07-P23] Approach to the current situation and issues of geothermal power generation utilization based on field surveys
Keywords:Geothermal power generation, energy
Our electricity energy consumption is steadily increasing. Currently, most of the energy continues to depend on thermal power generation, but the fact that most fossil fuels depend on imports and the emission of large amounts of greenhouse gases such as CO2 have been regarded as problems. While investigating and learning about the "effective utilization of geothermal resources," which is a characteristic of the region, geothermal power generation has major advantages such as low power generation costs and low environmental impact, while resources in Japan. I learned the fact that the penetration rate is low for the amount. Regarding geothermal power generation, which is an energy resource peculiar to the region, we will clarify the current situation and issues regarding geothermal energy and its utilization based on site tours and references, and the ideal scientific approach to the utilization of geothermal energy. Practical training and surveys were conducted with the aim of finding out. Based on the results, I worked on this research to approach scientifically.
On August 23, 2020, we visited two contrasting and distinctive power plants in the neighboring Iwate prefecture. Japan's first commercial power plant, Matsukawa Geothermal Power Plant, and Matsuo Hachimantai Geothermal Power Plant, a new style run by the private sector, which started full-scale operation in 2019. After completing the on-site training, we thought that each power plant was almost unmanned and the labor cost for operation was overwhelmingly lower than that of thermal power and nuclear power. For that reason, I felt that geothermal power generation, which has a large amount of power generation, does not impose a burden on the environment, and has a low power generation cost itself, is a power generation method that matches the coming era. Despite this, the introduction of geothermal power plants seems to be stagnant, as the Matsuo Hachimantai geothermal power plant went into full-scale operation in Japan for the first time in 22 years. Considering the reason, I was interested in the balance between the size of the construction cost and the sales revenue for it, such as the excavation of additional production wells seen at the Matsukawa Geothermal Power Plant, and the cost of geothermal power generation using the Matsukawa Geothermal Power Plant as an example. I made a trial calculation.
It cannot be said that the construction of geothermal power plants in Japan is saturated. It is mainly concentrated in Hokkaido, Tohoku, and Kyushu, and it is essential that there is a stable hydrothermal system underground, which is thought to be due to the limited location, but it is also necessary to consider other reasons.
A hot spring binary power generation is being carried out at a hot spring inn in Naruko, Osaki City, and we are considering a future site visit. In addition, we are making a geothermal power generation model to solve the problems that became clear from this survey. The geothermal power generation model uses corrugated cardboard to create the image of a volcano, and a pressure cooker is installed inside to reproduce the production well. A turbine is attached to the outside to reproduce the power plant. Using this, I would like to conduct experiments on the current power generation efficiency due to the shape of the turbine and the loss of thermal energy associated with power generation. It also aims to disseminate energy education to local junior high school students using these models.
On August 23, 2020, we visited two contrasting and distinctive power plants in the neighboring Iwate prefecture. Japan's first commercial power plant, Matsukawa Geothermal Power Plant, and Matsuo Hachimantai Geothermal Power Plant, a new style run by the private sector, which started full-scale operation in 2019. After completing the on-site training, we thought that each power plant was almost unmanned and the labor cost for operation was overwhelmingly lower than that of thermal power and nuclear power. For that reason, I felt that geothermal power generation, which has a large amount of power generation, does not impose a burden on the environment, and has a low power generation cost itself, is a power generation method that matches the coming era. Despite this, the introduction of geothermal power plants seems to be stagnant, as the Matsuo Hachimantai geothermal power plant went into full-scale operation in Japan for the first time in 22 years. Considering the reason, I was interested in the balance between the size of the construction cost and the sales revenue for it, such as the excavation of additional production wells seen at the Matsukawa Geothermal Power Plant, and the cost of geothermal power generation using the Matsukawa Geothermal Power Plant as an example. I made a trial calculation.
It cannot be said that the construction of geothermal power plants in Japan is saturated. It is mainly concentrated in Hokkaido, Tohoku, and Kyushu, and it is essential that there is a stable hydrothermal system underground, which is thought to be due to the limited location, but it is also necessary to consider other reasons.
A hot spring binary power generation is being carried out at a hot spring inn in Naruko, Osaki City, and we are considering a future site visit. In addition, we are making a geothermal power generation model to solve the problems that became clear from this survey. The geothermal power generation model uses corrugated cardboard to create the image of a volcano, and a pressure cooker is installed inside to reproduce the production well. A turbine is attached to the outside to reproduce the power plant. Using this, I would like to conduct experiments on the current power generation efficiency due to the shape of the turbine and the loss of thermal energy associated with power generation. It also aims to disseminate energy education to local junior high school students using these models.