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Solar water pump sizing calculator for farms

Size a solar pump and array from well depth, daily water need and sun hours.

Recommended solar array

2.8 kW

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Recommended solar array

2.8 kW

2.31 kW pump lifting 40 m³/day from 70 m

Hydraulic energy needed
7.63 kWh/day
Electrical energy needed
13.87 kWh/day
Pump power rating
2.31 kW (3.1 hp)
Average flow rate
111 litres/min
Land irrigated (vegetables)
≈ 0.9 hectares
Diesel avoided per season
971 litres

Sizing uses standard hydraulic power formula with array oversizing for morning and evening low irradiance. Real well yield must be confirmed on site.

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