The solar water pump system is the most attractive way of water supply in the sun-rich areas in the world today, especially the remote areas in lack of electricity. It uses the inexhaustible solar energy that is available everywhere, and the system automatically switches on at sunrise and switches off at sunset. However, it does not require personnel to supervise, and the maintenance workload can be minimized. It is an ideal green energy system that integrates economy, reliability and environmental benefits.