4.0kwh/Nm³ - LONGi Hydrogen launches new generation of electrolyzed water hydrogen production equipment ALK Hi1

BEIJING, Feb. 17, 2023 /PRNewswire/ -- LONGi Hydrogen, a wholly-owned subsidiary of China's solar giant LONGi Green Energy Technology Co., Ltd. (LONGi), officially launched its new generation of alkaline electrolyzed water hydrogen production equipment ALK Hi1 in Beijing, continuously exploring the lowest of energy consumption and redefining the height of energy efficiency.

Based on the rich experience in the photovoltaic field, LONGi found that, similar to LCOE of photovoltaic, the core path is to reduce the electricity consumption of hydrogen production units, that is, for the same electricity consumption to produce more hydrogen. The lower the Levelized Cost of Hydrogen (LCOH) is, the more cost-efficient green hydrogen will be.

Electricity price and energy consumption per unit of hydrogen production are the two variables that contribute to the highest sensitivity of LCOH. The full-load DC power consumption of ALK Hi1 can be as low as 4.3kwh/Nm³. It is even lower for ALK Hi1 Plus, down to 4.1kwh/Nm³, in order to adapt to hydrogen production scenarios demanding higher utilization hours. It even hits 4.0kwh/Nm³ when the current density is 2500A/㎡.

Research also shows that full-load DC power consumption of the global electrolyzed water hydrogen production industry, including alkaline water hydrogen production technology (ALK) and proton exchange membrane electrolysis water (PEM) power, is basically in the range of 4.5-4.6kwh/Nm³. Li Can, academician of Chinese Academy of Sciences, said that this is already a comparatively good energy efficiency performance at the industrial level.

So far, the performance of ALK Hi1 has been witnessed and verified by DNV and certified by DEKRA Testing and Certification (Shanghai), and measured in accordance with the national standard of GB-32311-2015. LONGi ALK Hi1 series products are rated to have the level 1 energy efficiency of hydrogen production system.

LONGi ALK Hi1 series products have the characteristics of high efficiency and high production capacity, which means reduction of DC power consumption by more than 10%, and the LCOH of hydrogen production in different scenarios will be greatly cut down. That is, for 0.1kwh/Nm³'s reduction in hydrogen production DC power consumption, depending on the number of system utilization hours, hydrogen LCOH can be reduced by 1.8%-2.2%, which is equivalent to a reduction of the initial investment of hydrogen production equipment by 10% to 25%.

"The history of the development of human civilization is also the history of energy development". In the context of "Carbon Peaking and Carbon Neutrality", the trend of energy development will gradually shift from carbon-based energy to silicon-based energy, and then to hydrogen energy. Li Zhenguo, Founder & President of LONGi, said that solar power has become the world's most economical clean energy, and "photovoltaic hydrogen production" is a real "duel-clean" energy solution.

Through the comparison of different scenarios, Ma Jun, President of LONGi Hydrogen, introduced the advanced technology and business value of LONGi ALK Hi1 to the participants at the launch event. LONGi Hydrogen always adheres to the "First Principles" to carry out scientific and technological exploration, and is dedicated to becoming a world-leading large-scale green hydrogen production equipment and solution provider.

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