© Toyota
© Toyota

Updated: Toyota and Chiyoda to mass produce compact electrolyser systems

Toyota Motor Corporation has announced plans to mass produce 5MW electrolysers in collaboration with Chiyoda Corporation.

The two Japanese-based companies will develop the “world’s smallest” electrolysis system with high hydrogen production efficiency. Each electrolyser will take up 2.5m x 6m of floor space, whilst boasting a hydrogen capacity of around 100kg per hour.

The electrolysers will be combined to create a standard package and therefore allow the construction of large-scale electrolysis systems.

Under a basic agreement, both Toyota and Chiyoda will introduce an electrolyser system to the Hydrogen Park at the Toyota Honsha Plant, beginning in 2025. It’s planned to be expanded to the 10MW class and used for verification and development in the future.

H2 View understands small-scale production of the project is scheduled to begin between April 2027 and March 2028, before mass production will take place sometime from April 2029 onwards. At the start of mass production, the production capacity is planned to be approximately 1GW per year.

© Toyota / The electrolysis system

Kaori Hasegawa, Corporate Communications at Toyota Motor Europe, told H2 View that there is a wide range of issues that need to be addressed, in order to secure deployment.

These included “global development, balancing supply and demand for hydrogen and water electrolysis equipment, and strengthening competitiveness.”

The systems are expected to be marketed across Japan and overseas.

The electrolysis cell stacks will be produced using Toyota’s fuel cell technology and the processing plant design technologies and large-scale construction technologies will be provided by Chiyoda.

The statement released by the two companies said, “The merits of this equipment include the fact that it only takes up about half the floor area of conventional equipment and offers ease of maintenance while allowing easier shipping, shortened on-site construction times, and lower civil engineering and construction costs.”

Lower costs, increased production efficiency, and more stable quality for the electrolysis systems will be particular benefits of the technology, utilising Toyota’s expertise in industrial products and Chiyoda’s plant engineering experience.

Last November (2023), Aurora Energy Research revealed the global hydrogen electrolyser project pipeline has grown by 6% in the six months prior, reaching 1.18TW – falling from an 18% rise in the six months before that.

Read more:Global hydrogen electrolyser pipeline growth slows while project development speeds up

Despite this, projects advancing beyond early-stage planning is accelerating, according to Aurora, now totally a capacity of 182GW, up 32% (48GW) since April 2023.

Aurora researchers also forecasted the global electrolyser manufacturing capacity to reach 59GW per year in 2025, representing a 23% rise since its last update. This is then anticipated to enable the production of 506GW of electrolysers by 2030, surpassing the current demand needed to deliver the current pipeline.

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