Water is the primary source of life for mankind and one of the most basic necessities for ruralrndevelopment. The rural demand for water for crop irrigation and domestic water supplies isrnincreasing. At the same time, rainfall is decreasing in many arid countries, so surface water isrnbecoming scarce. Groundwater seems to be the only alternative to this dilemma, but therngroundwater table is also decreasing, which makes traditional hand pumping and bucketingrndifficult. As these trends continue, mechanized water pumping will become the only reliablernalternative for lifting water from the ground.rnDiesel, gasoline, and kerosene pumps have traditionally been used to pump water. However, thernnon-renewable energy is on the way of depleting from the world and due to this cost of the oilsrnare increasing from time to time, in addition to these the exhausting gases from them is pollutingrnthe environment. So due to the cost of the oils, the developing country such as Ethiopia may notrnable to buy to generate water from the ground for the people and livestock. Since our country isrnreach in renewable energy, it is the must to replace for generation of power to the renewable onernsuch as solar energy, wind energy, and others.rnCurrently, hybrids of PV and wind with or without backup generators are more promising forrnsupplying uninterrupted power because they work independently of each other. Such systems dornnot require each component to be oversized.rnFor the Semento kebele, Liban woreda, which has the problem of drinking water for the peoplernand livestock the solar-wind hybrid system with the specification 270kw PV, 11BWC Excel-s,rn110kw inverter, Total net present cost (NPC) $1,305,958, levelized cost of energy (COE)rn$0.458/kwh, and operating cost $47,179/yr is selected after optimizing by using the HOMERrnsoftware. The demand of water for the site is 2200m3/d and this is easily fulfilled by installingrntwo systems for the kebele. From the installed hybrid system there is excess electrical powerrnwhich is used for the lighting purpose by using battery and there is also excess water which wernuse it for the irrigation purpose. So even if our aim is to solve the problem of drinking waterrnthere is also problems that are solved with the system.