Opening Ceremony Held for Iwatani Cosmo Hydrogen Station Ariake Bus Depot
March 28, 2025
Cosmo Energy Holdings Co., Ltd.
Cosmo Oil Marketing Co., Ltd.
Iwatani Corporation
Iwatani Cosmo Hydrogen Station LLC
Cosmo Oil Marketing Co., Ltd. (hereafter, “Cosmo Oil Marketing”), a subsidiary of Cosmo Energy Holdings Co., Ltd., Iwatani Corporation (hereafter, “Iwatani”), and their joint venture, Iwatani Cosmo Hydrogen Station LLC (hereafter, “the Joint Venture”), held an opening ceremony on March 27, 2025, for the Iwatani Cosmo Hydrogen Station Ariake Bus Depot (hereafter, “the Station”). The Station is scheduled to officially begin operations on April 1, 2025.
Located on the premises of Tokyo Metropolitan Bureau of Transportation’s Ariake Bus Depot , the Station is the first hydrogen station in Japan to operate within a bus depot. It will serve as a hydrogen supply hub for fuel cell buses, aiming to further expand Tokyo’s hydrogen supply infrastructure.
The liquid hydrogen pump used at the Station was manufactured by Mitsubishi Heavy Industries, Ltd. and is the first of their kind to be made in Japan. Capable of supplying over 120 kilograms of hydrogen per hour, the pump enables simultaneous refueling of two vehicles. In the future, the Station will be available not only for buses operated by the Tokyo Metropolitan Bureau of Transportation but also for those operated by private bus companies. This marks the second hydrogen station to be operated by the Joint Venture.
At the opening ceremony, the companies welcomed Ms. Akiko Matsumoto, Deputy Governor of Tokyo, and Mr. Sadanori Ito, Director-General of the Energy Efficiency and Renewable Energy Department at the Agency for Natural Resources and Energy, Ministry of Economy, Trade and Industry (METI), as distinguished guests. Both delivered congratulatory remarks. The event also featured a ribbon-cutting ceremony and a hydrogen refueling demonstration.
The Cosmo Energy Group and Iwatani have been working to promote the spread of hydrogen energy as part of their commitment to building a sustainable society. Through the opening of the Station, the companies aim to further expand Tokyo’s hydrogen supply network and contribute to the realization of a carbon-neutral society.
Looking ahead, the Cosmo Energy Group and Iwatani remain dedicated to advancing initiatives that support the development of a hydrogen-based society in collaboration with domestic and international partners through public-private partnerships.
■Overview of the hydrogen station
Name: Iwatani Cosmo Hydrogen Station Ariake Bus Depot
Operator: Iwatani Cosmo Hydrogen Station LLC
Site area: 1,000.03㎡
Supply method: Liquid hydrogen storage (offsite)
Supply capacity: 120 kilograms per hour (kg/h) or more
Refueling pressure: 82 megapascals (MPa) ※1MPa≒10 atmospheres (atm)
Address: 3-9-25 Ariake, Koto-ku, Tokyo
Operation start date: April 1, 2025
■Commemorative photo
From left
Hiroshi Kimura (Representative Managing Director, Iwatani Cosmo Hydrogen Station LLC)
Shinichi Tanaka (Director-General, Bureau of Industrial and Labor Affairs, Tokyo Metropolitan Government)
Akiko Matsumoto (Deputy Governor, Tokyo)
Akiji Makino (Chairman and CEO, Iwatani Corporation)
Shigeru Yamada (Representative Director and Group CEO, Cosmo Energy Holdings Co., Ltd.)
Sadanori Ito (Director-General, Energy Efficiency and Renewable Energy Department, Agency for Natural Resources and Energy, METI)
Hideo Kuga (Director, Tokyo Metropolitan Bureau of Transportation)
(End)
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