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Solar pumping can help offset the cost of traditional irrigation fuels. The more often a pump is run, the greater the opportunity for savings from solar. Solar pumps are reliant exclusively on the sun to provide power and therefore operate only during daylight hours unless coupled with battery/storage systems. Solar pumps may be a good option for lower water volume and daytime irrigation systems. As yet, affordable solar technology is unable to supply sufficient power to pump enough water for large-scale flood irrigation.