Choosing the right solar pump starts with four numbers.
1. Total dynamic head
Add the static water level, the drawdown, the height of your tank above ground and pipe friction losses. This is the height the pump must lift.
2. Daily water requirement
- A household: 100–200 litres per person per day
- A dairy cow: about 80–100 litres per day
- Drip irrigation: 3–5 litres per m² per day
3. Peak sun hours
Most of Kenya gets 5–6 peak sun hours a day — great for solar pumping.
4. Pick the pump and the array
Hydraulic energy (Wh) = flow (m³/day) × head (m) × 2.725. Divide by sun hours and pump efficiency to get the panel wattage.
Try our sizing calculator or request a free quote.
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