The University of Tokyo and Hiroshima University conducted a technical evaluation of a hydrogen production system that combines photovoltaic power generation and storage batteries, and found that it is possible to realize inexpensive hydrogen production with high international competitiveness around 2030. I found out that there is sex.The research group says that it will be an important guideline for technological development toward the main power source of renewable energy.

 According to the National Institute for Materials Science, the research group has developed an integrated system that adjusts the charge / discharge amount of storage batteries and the amount of hydrogen production in water electrolyzers according to the amount of power generated by photovoltaic power generation, and evaluated its economic efficiency.

 As a result of repeated studies, including future technological improvements, the international competition is high at 2030-1 yen per cubic meter by using inexpensive storage batteries that are thought to be practically available around 17. It turned out that powerful hydrogen production will be possible in Japan.

 The government has positioned renewable energy as one of its core power sources, but the unstable output and low output of renewable energy, such as the implementation of output control of solar and wind power generation within the Kyushu Electric Power jurisdiction from October to November. The annual occupancy rate has emerged as a major issue.

 As a countermeasure, the production of hydrogen from renewable energy and the system to store surplus electricity in a storage battery are being considered, but it is expected to lead to high cost.Based on this result, the research group will accelerate research toward social implementation such as the development of a photovoltaic power generation system that can be established even under output control.

Paper information:[International Journal of Hydrogen Energy] Battery-assisted low-cost hydrogen production from solar energy: Rational target setting for future technology systems

Tokyo University

Established in the 10th year of the Meiji era.A university with the longest history in Japan and at the forefront of Japanese knowledge

The University of Tokyo was established in 1877 (Meiji 10) by integrating the Tokyo Kaisei School and the Tokyo Medical School.Since its establishment, it has developed education and research in a unique way in the world as a leading university in Japan and an academic center for the fusion of East and West cultures.As a result, many human resources have been produced in a wide range of fields, and many research achievements […]

Hiroshima University

Learning to design your own life.To the world's top 100 universities that create knowledge

Under the five principles of "spirit of seeking peace," "creation of new knowledge," "education that cultivates abundant humanity," "coexistence with local and international communities," and "continuous self-transformation," 5 faculties and 12 studies A comprehensive research university with a department.While promoting university reform with both educational and research capabilities, we will continuously produce global human resources and gain knowledge […]

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