No windmills, no cylinder leather problems, no solar pumps requiring periodic filter cleaning, just a reliable supply of water. Submersible usually last for ten to twenty years. You will not get that reliability from any other approach!
Basic components:
1/2 hp pump--115 vac--no control box----$250
2400 watt, 24 vdc input, 120 vac output-----$600
2 12 volt deep discharge batteries -----$300
100 Watt solar panel--24vdc output---- $400 ( see buyers guide on this site)
Timer ---$100
Run pump 60 minutes for 400 gallon per day---ten minute segments --6 over day light hours to distribute load on battery. For less water per day, reduce run time accordingly. Pump output 7 gallon per minute.
For 200 gallon per day, run pump .5 hour. ( six 5 minute segments ) One hour run = 370 watt- hours discharge. 7 hours of solar output at 100 watts = 700 watt-hours input.
You have the flexibility of running for longer periods by utilizing a 1000 watt ac generator..
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