Green hydrogen solar coupling refers to the combination of solar - power generation and green hydrogen production. Solar energy is first converted into electricity through solar panels. This electricity is then used to power electrolyzers, which split water molecules to produce hydrogen. This process is highly environmentally friendly, as solar energy is a renewable and clean energy source, and the hydrogen produced is green hydrogen with zero - carbon emissions. This coupling can effectively utilize the abundant solar resources, especially in regions with rich sunlight. It not only solves the problem of intermittent solar energy, but also provides a sustainable way to produce hydrogen. The hydrogen can be used for various purposes, such as fuel for transportation, feedstock for industry, or stored for later use, thus promoting the development of the hydrogen - energy industry and the realization of the carbon - neutral goal.