Solar water pumps are currently being used to irrigate crops, water livestock, and provide potable drinking water. A solar water pump uses peak solar array output which frequently coincides with high water demand during long, dry summer days. In the event of cloudy weather solar powered pump systems often use storage tanks to store excess water. Unlike generator powered water pumping systems, solar pumps do not require fuel or constant maintenance. They can also be designed for portability to be moved as water demand or change of seasons requires. In addition, they cost less to operate and offer modular capability to be quickly expanded as demand increases, unlike a generator or windmill pump. |