It is the first set of hydrogen production and energy storage equipment in Hunan Province to be used and demonstrated for the first batch of major technical equipment. This comprehensive system equipment includes a PEM hydrogen production device, a purification device, a storage device and a fuel cell power generation device. The high-pressure differential PEM electrolysis cell produced by its independently invented technology can directly produce 7.0MPA high pressure difference and 99.999% purity hydrogen. The current density reaches more than 2A/cm2, and the single-layer voltage does not exceed 1.9V. It can not only achieve second-level start and stop and second-level dynamic response. It can also operate reliably in the power range of 5%-150%. This comprehensive system equipment can couple the hydrogen production energy storage of photovoltaics and wind energy and the electrical conversion output of hydrogen energy. It can also collect waste heat, provide heat energy and refrigeration. It can be widely used in energy storage, distributed energy supply, cogeneration, etc. Multiple application scenarios have broad application space and market.