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Introduction of Solar Hydrogen Station Installed in Japan

Article of Honda R&D Technical Review Vol.25 No.1

Summary

A high differential pressure water electrolysis-type solar hydrogen station has been installed on the campus of the Saitama Prefectural Office in Japan. This is Japan’s first demonstration with this type of system, and the first such system in the world to be installed in a public location. A station of the same type, conforming to U.S. standards, had previously been installed at Honda R&D Americas, Inc. Los Angeles Center in Torrance, California, but it was necessary to make modifications in introducing the system to Japan in order to conform to Japanese laws and regulations. Thus, a fire-protection wall was put in place, the system ventilation airflow was increased and pressure proof tests were conducted on the high differential pressure water electrolysis stack. In the course of accommodating the Japanese laws and regulations, it was realized that under the present laws, the same configurations would be necessary when considering the household installation of such hydrogen stations. The study has also shown that this hydrogen station is capable of stably producing hydrogen in a verification test conducted in coordination with a fuel cell electric vehicle being used as an official vehicle by Saitama Prefecture.

Reference

(1) Okabe, M., Nakazawa, K., Taruya, K., Handa, K.: Verification Test of Solar-powered Hydrogen Station (SHS) with Photovoltaic Modules, Honda R&D Technical Review, Vol.20, No.1, p.72-79
(2) Nakazawa, K., Nagaoka, H., Takeuchi, J., Moburg, F., Yamashita, I., Okabe, M.: Introduction of High Differential Pressure Water Electroysis-type Solar Hydrogen Station (SHS2), Honda R&D Technical Review, Vol.22, No.2, p.28-35
(3) Nagaoka, H., Yoshida, N., Cun, D., Yamashita, I., Okabe, M.: Verification Test of High Differential Pressure Water Electrolysis-type Solar Hydrogen Station (SHS2), Honda R&D Technical Review, Vol.24, No.2, p.74-81
(4) http://www.honda.co.jp/soltec/cigs/index.html,2012/8/24
(5) ISO22734-2:2011. Hydrogen generators using water electrolysis process - Part2:Residential applications
(6) NFPA55:2010. Compressed gases and cryogenic fluids code
(7) NFPA497:2012. Recommended practice for the classification of flammable liquids, gases, or vapors and of hazardous (classified) locations for electrical installations in chemical process areas
(8) JIS C 60079-10:2008. Electrical apparatus for explosive gas atmospheres - Part 10: Classification of hazardous areas

Author (organization or company)

Jun TAKEUCHI(Automobile R&D Center)、Koji NAKAZAWA(Automobile R&D Center)、Nobuyoshi YOSHIDA(Automobile R&D Center)、Jun ITO(Automobile R&D Center)、Masanori OKABE(Automobile R&D Center)、Ikuya YAMASHITA(Automobile R&D Center)

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