Large-scale alkaline water electrolyzer
for producing hydrogen
from renewable energy
Asahi Kasei contributes to the
decarbonization of society by
promoting the use of green
Hydrogen is widely used in power generation, industry, and transportation, and is expected to be a key material for decarbonization.
Asahi Kasei’s large-scale alkaline water electrolyzer
“Aqualyzer TM” makes it possible to produce green hydrogen from renewable energy.
It is a form of “Power-to-Gas” technology, which converts renewable energy into green hydrogen for use as a substitute for fossil fuels in industry, transportation and a wide range of other applications. We believe that this will contribute to the achievement of a decarbonized society.
Movie: Asahi Kasei’s vision of a hydrogen society
What is hydrogen?
Features of Hydrogen
Hydrogen is an important material for
achieving a carbon neutral society,
so promoting the use of it will help toward that goal.
Three Features of Hydrogen
No CO2 emissions when used
Available in a variety of forms
Fuel for power generation and transportation
Raw material for chemicals and other industries…
Can be made from a variety of resources
The “Colors” of Hydrogen
Hydrogen can be classified into several categories
depending on the method of production.
Asahi Kasei is developing a system to supply “green hydrogen,”
which is produced from renewable energy.
Other types of hydrogen include “gray hydrogen,” which is based
on “fossil resources” such as coal and natural gas, and “blue
hydrogen,” where the CO2 emissions are reduced in the
Track record in the electrolysis business
Asahi Kasei has been active in the chlor-alkali electrolysis business for half a century and
has delivered electrolyzers to a great many customers. Asahi Kasei has applied this
abundant knowledge and operating experience to this alkaline water electrolyzer
for hydrogen production.
Main achievements in the chlor-alkali electrolysis business
- Participation in more than 150 projects
- Delivery of a total of 10 GW’s worth of electrolyzers
- No. 1 share in ion exchange membranes
- Production capacity of 1 GW’s worth of electrolyzers a year
- Global track record and support system
Asahi Kasei provides a one-stop solution for electrolyzers, membranes,
electrodes, monitoring systems and more.
Designed with 10-MW equipment as the base unit. The modular design of combining
multiple base units enables large systems to be built to meet the demand of the
green hydrogen market.
Working with R2, which has a proven track record in monitoring electrolyzers,
support optimal operation by remotely monitoring and controlling the
We support our customers’
hydrogen production through
and optimized operation.
Asahi Kasei’s development in hydrogen production can be traced back to 1923, when it first produced hydrogen using electricity from its own hydroelectric power generation to produce ammonia.
The development of this alkaline water electrolyzer is based on the technology of chlor-alkali electrolysis.
Asahi Kasei participates in projects for hydrogen production and utilization.
The Take-Off project aims to develop and demonstrate technology for producing SAF (Sustainable Aviation Fuel) from captured CO2 and hydrogen.
Asahi Kasei has been supporting the project by providing the electrolyzers for hydrogen production.
Asahi Kasei and JGC Group are working together in NEDO’s* Green Innovation Fund project to jointly demonstrate large alkaline water electrolysis system and green chemical plant that use hydrogen from renewable energy. By leveraging the hydrogen-related technology they have both accumulated over an extended period, they aim to enable practical applications in society as swiftly and surely as possible.
*New Energy and Industrial Technology Development Organization
Asahi Kasei joins the Japan Hydrogen Forum to support decarbonization in the U.S.
Asahi Kasei starts construction of alkaline water electrolysis pilot test plant for hydrogen production
Asahi Kasei joins the Hydrogen Council.
Introductory information has been released about "Aqualizer TM" Asahi Kasei’s alkaline water electrolyzer for hydrogen production.