【Ten Years of Great Progress in Chemical Engineering Technology】042-2023: China Achieves Grid Connection for Solid Hydrogen Energy Power Generation for the First Time

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**The solid hydrogen storage development project under the key research and development program was the first to achieve grid-connected power generation simultaneously in Guangzhou and Kunming, marking the first time in China that solid hydrogen energy produced from photovoltaic power has been used in power systems. The large-capacity on-site hydrogen storage containers developed and manufactured by Zhejiang LanNeng Hydrogen Energy Technology Co., Ltd., a subsidiary of Shenneng Group (hereinafter referred to as Zhejiang LanNeng), namely the 45MPa hydrogen storage cylinder assemblies, are being used in this new application scenario. Solar panels continuously convert solar energy into electrical power, which is then used to produce hydrogen through water electrolysis; this hydrogen is fed into the rectangular hydrogen storage tank via pipes ； The hydrogen released by solid-state hydrogen storage devices can be converted into electrical energy via fuel cells and fed into the power grid. Solid-state hydrogen storage solves the problem of flexible conversion between \"green electricity\" and \"green hydrogen\". As a major transformative technology, it is expected to serve as an important driving force behind the evolution of power systems toward more advanced forms in the future. Sheneng Group’s participation in China Southern Power Grid’s solid-state hydrogen storage power generation project marks a milestone: during peak electricity demand, the 165 kilograms of hydrogen stored in this system can provide a steady power supply for 23 hours. This contributes to the large-scale and stable utilization of clean energy, facilitates the production of hydrogen from renewable sources, and accelerates the development of a new type of power system. As a leading enterprise in the field of clean energy storage and transportation equipment, the 45MPa hydrogen storage cylinder assemblies independently designed and manufactured by Zhejiang LanNeng are one of the key components of this power generation project, ensuring that solid hydrogen can be converted into a continuous supply of green electricity. In addition to Zhejiang Lanneng making continuous efforts in the field of hydrogen storage and transportation equipment, the various hydrogen-related enterprises invested in by Shenneng Group are constantly achieving new breakthroughs. HydroGen Morning, a fuel cell stack R&D and manufacturing company in which the group holds a stake, has released the industry’s first high-power fuel cell stack with a capacity of 300 kW per stack, achieving a breakthrough in addressing the international technical challenges related to fuel cells ； Kunhua Technology and Kunpeng Hydrogen Energy, hydrogen energy companies invested in by the group, have released the world’s first hydrogen fuel cell engine system with a single stack capacity of 250 kW. This system features a completely new architecture that overcomes the barriers between technical research capabilities, product development capabilities, and the market demand for high-power system products. By continuously removing bottlenecks in the key stages of hydrogen development – production, storage, transportation, refueling, and utilization – SHENENG Group helps accelerate the industry’s transition from its introductory phase to industrialized development, thereby contributing to the construction of a new energy system.