Water Electrolysis

HORIBA, with its high-pressure water electrolysis evaluation equipment technology, will not only contribute to the development of technology for "creating" and "storing" hydrogen at high pressure, but will also support the improvement of green hydrogen usage by providing analysis and measurement technology related to renewable energy, as well as the ability to propose "turnkey management" that provides total support for the design and construction of facilities.

Water electrolysis is a mechanism that "creates" hydrogen by electrolyzing water into oxygen and hydrogen using the power of electricity.

There are three main types of water electrolysis devices: "Polymer Electrolyte Membrane (PEM) Water Electrolysis," in which pure water is passed through a solid polymer membrane with a catalyst and reacts with the catalyst to decompose it into hydrogen and oxygen; "Alkaline Water Electrolysis," in which hydrogen and oxygen are generated by passing an electric current directly through a strong alkaline solution; and "Solid Oxide Electrolysis Cell (SOEC) Water Electrolysis," in which water vapor is electrolyzed at high temperatures.

As the name implies, water electrolysis requires electric power, and hydrogen produced from renewable energy sources (wind, solar, hydro, geothermal, wave power, biomass, etc.) that do not emit CO2 is called "green hydrogen," and there are high expectations for it as the ultimate clean energy technology.


Table of Contents

Challenges in Water Electrolysis

In the production of green hydrogen by water electrolysis using renewable energy, it is important to improve the performance, durability, and low cost of the water electrolysis and steam electrolysis equipment, which is the core of the process.

Recently, the R&D of water electrolysis and fuel cell integrated cells has accelerated. In order to accelerate the R&D of electrolytic cells, it is important to have facilities that can analyze the materials of electrodes, electrolytes, and separators, as well as comprehensively evaluate various electrolytic cells and stacks in various test environments, for example, by varying the flow rate, temperature, and humidity of PEM and SOEC cells and stacks.

Global Initiatives

Participation in the H2Giga project

Germany is focusing on the industrialization of green hydrogen generation through water electrolysis generated from renewable energy.
Therefore, whether it is alkaline, PEM, or SOEC, investments are focused on the development of commercialized technologies that can be scaled up from the laboratory and demonstration level to the gigawatt (GW) class quickly.

HORIBA FuelCon, located in Germany, is also participating in the H2Giga project led by the German federal government due to its advanced water electrolysis system evaluation technology.

Reference link: Federal Ministry of Education and Research (BMBF) "H2Giga" project (German)

Our Unique Measurement & Analysis Technology

Performance Evaluation of Water Electrolysis

We propose a wide range of performance and efficiency evaluation of water electrolysis cells and stacks with optimally controlling water temperature and flow rate.

Testing of PEM and alcaline Electrolyzer

Testing of SOFC/SOEC Electrolyzer

Electrolyzed Water Quality Control

In alkaline water electrolysis, it is necessary to control the conductivity of the water to be electrolyzed.
When measuring the conductivity of high-temperature alkaline water, ordinary electrodes are prone to breakage, but our "ToupH" electrodes are robost enough to withstand high-temperature alkaline water.

In solid polymer (PEM) water electrolysis, the conductivity of the water to be electrolyzed can be measured to determine the amount of impurities in the water that affect the electrolysis.

We offer a wide range of pH and water quality meters, which are also our founding products, for both continuous measurement in line and laboratory use.

HORIBA water and liquid analysis products

Solar Power Generation

Photovoltaic power generation is once again attracting attention as one of the renewable energy sources that are attracting attention toward the realization of a carbon-neutral and decarbonized society.

We provide analysis methods for crystallinity, elemental distribution, and carrier lifetime of various solar cell materials such as silicon solar cells, compound semiconductor solar cells, and organic thin film solar cells.


Engineering Support

Turnkey Solution and Risk Assessment

With the turnkey solution, which is a total package for the construction of laboratory buildings, we take care of the entire construction work in place of busy customers right up to the start of laboratory operation, while taking into consideration the ordering of multiple vendors, meetings to determine specifications, safety, process, and quality control of construction, as well as operation, maintenance, and high efficiency of work after installation, and emphasizing safety and usability.

We have developed a unique risk assessment method that eliminates omissions and leakages even at points that are difficult to notice, by utilizing the knowledge accumulated by HORIBA FuelCon, a company specializing in turnkey solutions, engineering, and fuel cell evaluation, in order to achieve both cost and time minimization as well as safety and security.

Please contact us for more information.

Related Information on Hydrogen Energy

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