Fuel cells are used in a variety of stationary applications in addition to the transportation field.
      For grid energy storage, the commonly used battery energy storage has obvious shortcomings, and can only enable small-scale, high-frequency grid regulation; the "Implementation Plan for the Development of New Types of Energy Storage during the 14th Five-Year Plan Period" advocates the demonstration of hydrogen energy storage. In this process, hydrogen is produced via water electrolysis, stored, and later utilized for power generation through fuel cells. This approach is particularly well-suited for large-scale and low-frequency grid regulation, effectively compensating for the constraints of battery energy storage.
      For standby power supply, traditionally, standby power is provided by diesel generators and UPS. However, the policy of "carbon neutrality" has led to restrictions on carbon emissions. Hydrogen gas, a clean energy, can be an alternative to the traditional standby power supply options using diesel generators.