Abstract: The present disclosure provides a solar energy system, which comprises: a reflector capable of reflecting sunlight, which is rotatably mounted on a bracket via a pivot shaft and can rotate around the pivot shaft to reflect sunlight to solar energy utilization devices in different designated areas. The reflector has a large area and a small mass, and can be folded so that it occupies a smaller space, and can be unfolded when it operates to reflect sunlight to the solar energy utilization devices.