Core technical advantages: First, combination of photovoltaic power generation and elevators, install photovoltaic power generation systems on the top of elevator shafts or building roofs, and the generated electricity is preferentially used for elevator operation; Second, intelligent energy management, adopt an intelligent energy management system to automatically adjust the proportion of photovoltaic power generation and grid power supply to achieve optimal energy utilization; Third, zero energy consumption operation, in the case of sufficient sunlight, the elevator can completely rely on photovoltaic power generation to operate, realizing zero energy consumption; Fourth, grid-connected power generation, excess photovoltaic power generation is connected to the grid to obtain electricity bill income, which is used for daily maintenance and electricity expenses of elevators; Fifth, safe and reliable, the system is equipped with perfect protection devices to ensure that it automatically switches to grid power supply when photovoltaic power generation fails, ensuring the normal operation of elevators.