Recently, a 100-kilowatt level 20 standard cubic meters/hour efficient seawater electrolysis hydrogen production system independently developed by Wang Erdong researcher team of the Chinese Academy of Sciences Dalian Institute of Chemical Physics, was demonstrated in Huaneng Zhuanghe offshore wind farm. At present, the system is working stably, with all indicators up to the design requirements.

After the system was manufactured and debugged in September 2024, performance evaluation work has been continuously carried out. At present, the system operates stably and reliably, with a low voltage of 1.59 volts (3000 amperes per square meter) in the electrolytic cell chamber, a DC power consumption of 3.8 kilowatt hours per standard cubic meter of hydrogen, and a hydrogen purity of over 99.999%. In order to further verify the adaptability and responsiveness of the high-efficiency seawater electrolysis hydrogen production system to the fluctuation of renewable energy power output, Dalian Institute of Chemical Physics and Huaneng Liaoning Clean Energy Company carried out a joint demonstration work in Huaneng Zhuanghe offshore wind farm. The hydrogen production system can well adapt to the output characteristics of Huaneng Zhuanghe offshore wind power, reflected by the reliability and progressiveness of seawater electrolysis hydrogen production technology, thus laying a good foundation for the large-scale application of the technology.

The high-efficiency seawater electrolysis hydrogen production system with a capacity of 20 standard cubic meters per hour applies multiple core technologies of the Wang Erdong research team in the field of seawater hydrogen production, including high-performance hydrogen production electrodes, new low-cost electrolysis cells, wide power adaptive seawater electrolysis hydrogen production processes, and high reliability system architecture, ensuring the stable, reliable, and efficient operation of the seawater electrolysis hydrogen production system under complex working conditions.