Significant Breakthrough! LanKun Hydrogen Energy Pioneers Zero-Storage Off-Grid Hydrogen Production in China

On May 13-15, 2025, the 3rd International Electrolyzer Technology Innovation Conference was held in Suzhou. Zhang Hao, Chairman of Shandong LanKun Hydrogen Energy Technology Co., Ltd., attended as a speaker. During the awards ceremony, the company, located in Rizhao, Shandong, received the 2025 Hydrogen Energy Frontier “Golden Hydrogen Award” as a leading company in the annual alkaline electrolyzer sector.

On May 11, the off-grid hydrogen production system using zero storage at LanKun Hydrogen Energy in Rizhao successfully commenced operations. This electrolytic hydrogen production module operates without the need for any storage devices, requiring only a minimal amount of auxiliary energy storage (3 kWh) to ensure safe shutdown operations during power outages, marking a national first in the field of green electricity purely for off-grid hydrogen production.

Unlike industry practices that rely on grid-connected electricity for hydrogen generation or large-scale storage solutions to ensure off-grid operations, LanKun’s square, atmospheric pressure electrolyzer can achieve pure off-grid hydrogen production with a wide load range of 2%-120%. The system is designed to flexibly adapt to fluctuations in renewable energy generation, directly converting solar and wind power into high-purity hydrogen. This innovation eliminates substantial costs and complexities associated with energy storage, bringing off-grid hydrogen production from theory to practice.

The electrolyzer features:

• Integrated Structure for Stable Temperature Control: The gas-liquid separator and electrolyzer are designed as a single unit, creating a stable flow field environment for gas-liquid separation, ensuring that electrolysis efficiency remains uncompromised even in off-grid conditions.
• Safe Atmospheric Design: The system avoids high-pressure risks, operating at a pressure range of 10 kPa to 30 kPa, achieving micro-positive pressure; it utilizes a third-generation composite membrane that significantly reduces hydrogen-oxygen crossover, with hydrogen content in oxygen reaching just 0.2% under normal operating conditions, well below the 5% explosion threshold, providing essential safety for the electrolyzer’s operation.
• Convenient Operation and Maintenance: The square atmospheric pressure electrolyzer features a modular design, weighing only 33% of traditional high-pressure circular electrolyzers of the same power. It employs digital integrated control, simplifying the start-up process and eliminating the need for continuous manual inspections. Components can be replaced on-site without the need for factory returns, making maintenance extremely convenient.

Currently, the system produces hydrogen with a purity exceeding 99.9%, validating the reliability of off-grid hydrogen production with robust quality. This breakthrough stands as a testament to technological innovation and signals a new potential for the hydrogen energy industry—starting today, green electricity consumption no longer requires storage, allowing hydrogen production to proceed with greater ease.

Shandong LanKun Hydrogen Energy Technology Co., Ltd. was established in 2023 in Rizhao, Shandong, with the mission to provide large-scale hydrogen production equipment—specifically, square atmospheric hydrogen production electrolyzers. The company has imported technology and a research and development team from Germany, focusing on the research and innovation of core hydrogen energy equipment technology. It aims to integrate hydrogen and electricity from renewable sources, providing comprehensive solutions for distributed hydrogen production, green steelmaking, green port construction, and carbon reduction in industrial processes. The company has already formed strategic partnerships with China Power Investment Group and China Energy Construction (Shanghai) Co., Ltd..

Discussing hydrogen energy, Chairman Zhang Hao remarked, “The significance of hydrogen lies in its green potential; only hydrogen produced from renewable energy is considered green hydrogen, which can replace traditional fossil fuels and mitigate the greenhouse effect.” As the hydrogen energy sector experiences significant growth opportunities, LanKun is leveraging its technological, team, and industrial advantages to advance the construction of a 2 GW automated production facility, promoting the mass production of square atmospheric hydrogen production electrolyzers, and rapidly capturing market share in this burgeoning sector.