By: ICN Bureau
Last updated : October 16, 2025 4:00 pm
Chiyoda plans to install the water electrolysis system in Aichi Steel’s Chita factory using a wind power plant owned by Eurus Energy
Japanese engineering firm Chiyoda and Toyota are partnering to build a large-scale water electrolysis system for a low-carbon hydrogen project in Japan. The new system combines Toyota's fuel cell stack technology with Chiyoda's plant engineering expertise to produce hydrogen from water.
The project aims to develop a competitive, large-scale water electrolysis system to contribute to Japan's hydrogen economy and meet rapidly expanding domestic and international demand.
In addition to Chiyoda and Toyota, other major players include Toyota Tsusho Corporation, Eurus Energy Holdings Corporation, and Iwatani Corporation.
The project has been certified by the Ministry of Economy, Trade and Industry under the ‘Support Focusing on the Price Gap scheme based on the Hydrogen Society Promotion Act, which supports the use of low-carbon hydrogen, etc. for a smooth transition to a decarbonized growth- oriented economic structure’.
Chiyoda plans to install the water electrolysis system in Aichi Steel’s Chita factory using a wind power plant owned by Eurus Energy.
Chiyoda will manufacture and sell water electrolysis equipment using Toyota-manufactured stacks, combining Toyota’s fuel cell technologies and cell stack and mass production knowledge with Chiyoda's process plant design expertise and large-scale plant construction capabilities.
As a comprehensive engineering company, Chiyoda is involved in upstream hydrogen production and the development of hydrogen utilization technologies and transportation carriers.
Chiyoda combines its ‘in-house’ hydrogen technology capabilities with Engineering, Procurement and Construction (EPC) projects, from early feasibility studies, with the aim of building hydrogen value chains in a future hydrogen society that will contribute to the realization of a carbon-neutral future.