Hydrogen energy is an important choice for future energy transition, with advantages such as high energy density and zero emissions. To promote the healthy, orderly, and sustainable development of the hydrogen energy industry, XJ has developed core products such as the source-grid-load-storage-hydrogen collaborative control system, hydrogen production monitoring system, and hydrogen production power supply, focusing on scenarios including large-scale renewable energy hydrogen production, utilization of industrial by-product hydrogen, integrated refueling stations, and hydrogen energy storage. It has also created overall solutions for large-scale renewable energy hydrogen production, industrial by-product hydrogen, and hydrogen-electricity coupling, providing one-stop technical services. In terms of application performance, XJ has participated in demonstration projects such as China's first off-grid photovoltaic seawater hydrogen production, Henan Energy Kaiyuan Chemical by-product hydrogen combined heat and power, and Ningxia Electric Power Research Institute's power-hydrogen coupling grid-connected demonstration platform.